Digital Photography Research Papers - Academia.edu (original) (raw)

2025, Agricultural and Forest Meteorology

A correct exposure is of crucial importance for accurate retrieval of canopy parameters using hemispherical photograph techniques. Digital hemispherical photographs were collected under different sky brightness conditions using a Nikon CoolPix 4500 camera with an FC-E8 fish-eye lens for canopies of different species and openness. Different exposure schemes were employed to investigate the effects of photographic exposure on the estimations of the effective leaf area index (L e ) and gap fraction. The contrast between the sky and foliage under each exposure scheme was calculated to determine the correct exposure under different weather conditions. The results demonstrated that digital hemispherical photographs taken with automatic exposure are not reliable, causing L e underestimations by 16-71% for medium and high density canopies (L e = 3.2-4.8) and corresponding gap fraction overestimations by 18-72%. While for open canopies with L e < 1.26, L e was overestimated by 11-29%, and the corresponding gap fraction was underestimated by 4-28%. Studies showed that increasing one stop of exposure results in 3-28% differences in L e for canopies with different openness. Based on the analysis, we determined the optimum exposure and developed a protocol for acquiring digital hemispherical photographs. The protocol requires first measuring reference exposure for the open sky using a built-in camera light meter, and then take photographs inside the canopy using the same camera with two stops of more exposure than the reference exposure in order to make the sky appear white and consequently also maximize the contrast between the sky and foliage. This protocol is applicable for different sky brightness and for different canopy openness. In dense canopies, this procedure requires much less exposure than automatic exposure, but in very open canopies, this procedure requires more exposure than automatic exposure. Using the exposure determined with this procedure rather than the automatic exposure, the comparison of L e values from the LAI-2000 and digital photographs is greatly improved, with R 2 increasing from 0.77 to 0.95, and RMSE decreasing from 1.29 to 0.38.

2025, Sex Education

This paper analyses two Chinese sex education picture books for children aged between 3 and 6 years of age using van Leeuwen's legitimation framework, which identifies four types of legitimation strategies: authorization, moral evaluation, rationalisation and mythopoesis. Our findings suggest that personal authority tends to be vested in mothers as the conveyers of sex education to young children. Moral evaluation is realised through values such as responsibility and love, which are embedded in the description of biological events and physical objects, implicitly instilling in children the accepted heterosexual moralities that pervade mainstream Chinese society. Rationalisation is used to suggest a general social need to decrease the degree of directness in discussions about sex-related knowledge and to legitimise the appropriateness of the contents of sex education for young children. With respect to mythopoesis, both texts present a moral tale in which the love and marriage of a man and a woman is rewarded by the birth of a 'healthy, strong and clever' child. All these strategies configure to construe a moderately open, highly positive and fundamentally stereotypically heterosexual image of sexuality and procreation for young children in mainland China.

2025, Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems

With the rise of digital photography and social networking, people are sharing personal photos online at an unprecedented rate. In addition to their main subject matter, photographs often capture various incidental information that could harm people's privacy. While blurring and other image filters may help obscure private content, they also often affect the utility and aesthetics of the photos, which is important since images shared in social media are mainly for human consumption. Existing studies of privacy-enhancing image filters either primarily focus on obscuring faces, or do not systematically study how filters affect image utility. To understand the trade-offs when obscuring various sensitive aspects of images, we study eleven filters applied to obfuscate twenty different objects and attributes, and evaluate how effectively they protect privacy and preserve image quality for human viewers.

2025, American Journal of Ophthalmology

2025, 7th International Electronic Conference on Sensors and Applications

2025, Proceedings of the IEEE

This month we continue a series of reprints from the IEEE Global History Network's STARS articles. 1 STARS is an online compendium of invited, peer-reviewed articles on the history of major developments in electrical and computer science... more

2025, Proceedings of the IEEE

2025, Frontiers - AI and Communication

This research examines the potential of artificial intelligence (AI) image generation technologies for humanistic applications, specifically focusing on the creation, reconstruction, and reinvention of nonexistent visual archives through which communities can restore affective and identity-based memories. The theoretical framework draws from multiple perspectives: affect theory of postmemory, techno-aesthetic and affective apparatus theory, the concept of insubordination of signs, distribution of the sensible, and theories of affective memory and visual archives. Through case study analysis, this investigation examines the creative, ethical, and theoretical-methodological strategies employed in four artistic and experimental projects, each driven by distinct aesthetic, emotional, political, activist, and vindicatory objectives. The research identifies three distinct levels of intervention in fractured memory through AI: the socio-political (evidenced in projects addressing historical invisibility and state violence), the communitycultural (manifested in projects recovering cultural traditions), and the therapeuticpersonal (focused on individual memory restoration). The findings demonstrate the significant potential for expanding generative AI applications toward emotional repair, memory reinvention, and transformation of established sentiment structures, introducing the original concepts of "algorithmic postmemory" as a framework for understanding AI's active role in memory construction and "affective symbolic documentalism" for comprehending the testimonial value of AI-generated imagery. These applications challenge dominant discourses that render specific social collectives invisible within society while offering new methodological approaches for the restoration of fractured memories and historical healing.

2025, Wolf, Richard A

This article explores the artistic trajectory, conceptual foundations, and emotional undercurrents present in the photography of Wolf, Richard A, a freelance visual artist from Houston, Texas. By dissecting his compositional style, subject matter, and use of digital platforms, we position Wolf's work within the broader context of contemporary emotional realism in visual storytelling.

2025

La llegada del daguerrotipo en 1839 sig-nificó un punto de inflexión en la historia y el desarrollo de la vida del hombre en general, y de las artes en particular, pues trajo consigo una nueva forma de comprender el mundo, de conocerlo y de representarlo. La fotografía generó nuevos paradigmas y se convirtió en tema de numerosos debates que han intentado hasta hoy definir su naturale-za. Sin embargo, no ha sido tarea fácil pues cada postura frente a la imagen fotográfica se ha visto naturalmente influenciada por la época en que ha surgido, y las ideas en torno a ella han evolucionado al mismo tiempo que sus modos de producción. Es decir, los desarrollos tecnológicos han permitido que lo fotográfico y lo fotogra-fiable evolucionen y, en consecuencia, se han generado otros interrogantes cuyas respuestas vienen a configurar un nuevo discurso que ha hecho replantear lo que se entendía hasta ahora por fotografía. Dicho esto, intentaremos aproximar-nos a la imagen fotográfica de nuestro t...

2025, ORSON Revista dos Cursos de Cinema do Cearte UFPEL

O artigo discute o tema da memória no filme Cidadão Kane, de Orson Welles, tecendo considerações sobre como a obra possibilita um deslocamento da memória psicológica ao plano de uma memória ontológica como expressão, no plano material, da forma pura do tempo. Neste sentido, ela põe o espectador em contato com o regime de uma temporalidade pura, através da suspensão de seus hábitos espectatoriais sensório-motores.

2025, Artificial images in global health: Fakery before and in the era of Al

Objective To allow a probing inquiry of the role and value(s) of visual communication at the intersection of diverse stakeholders' ethics, norms, aims and aspirations, and the relationship between the 'real' (and often fake) substrate of... more

2025, Photographies

AN ARCHIVE OF ARCHIVES LOST 'An Archive of Archives Lost' is an affective autoethnographic visual essay that examines the devastating impact of climate change through the lens of personal loss. The Philippines is among the countries most vulnerable to the ongoing climate crisis, with tropical storms getting stronger and more frequent. As a result of the intensified damage, many homes have lost their personal photographic archive, which used to bring together families and community through shared memories. The repeated experience of typhoons, flooding, and loss has made the community attuned to a routine cycle of letting go. The destruction of photographs symbolizes a deeper loss of cultural and social ties whose affective impact I explore.

2025, Human Vision and Electronic Imaging XVII

Our High-Dynamic-Range (HDR) world is the result of nonuniform illumination. We like to believe that 21 st century technology makes it possible to accurately reproduce any scene. On further study, we find that scene rendition remains a best compromise. Despite all the remarkable accomplishments in digital imaging, we cannot capture and reproduce the light in the world exactly. With still further study, we find that accurate reproduction is not necessary. We need an interdisciplinary study of image making -painting, photography and image processing -to find the general solution. HDR imaging would be very confusing, without two observations that resolve many paradoxes. First, optical veiling glare, that depends on the scene content, severely limits the range of light on cameras' sensors, and on retinas. Second, the neural spatial image processing in human vision counteracts glare with variable scene dependent responses. The counter actions of these optical and neural processes shape the goals of HDR imaging. Successful HDR increases the apparent contrast of details lost in the shadows and highlights of conventional images. They change the spatial relationships by altering the local contrast of edges and gradients. The goal of HDR imaging is displaying calculated appearance, rather than accurate light reproduction. By using this strategy we can develop universal algorithms that process all images, LDR and HDR, achromatic and color, by mimicking human vision. The study of the general solution for HDR imaging incorporates painting photography, vision research, color constancy and digital image processing.

2025, Yaşanan Gerçekliğin Fotoğraflar Aracılığıyla Kodlanması

Akıllı iletişim teknolojilerinin yaşantımıza girmesi, bu alanda görülen inanılmaz gelişmeler doğrultusunda teknolojinin getirdiği ‘yaşamsal’ kolaylıklar sonrasında hayatımızın görsellik temeli üzerine kurulduğunu söylememiz mümkündür. Nitekim fotoğrafın icadı ile başlayan, görsel temelli teknolojik süreç önce hareketli görüntüler ile sinemayı yaşantımıza dâhil etmiş; ardından sesin de hareketli görüntülere eşlik etmesiyle sinema ve televizyonun kurgulanabilir yaşamsal gerçekliğin sesli/görüntülü bir anlatısal ifadesi haline dönüşmüştür. Günümüzde ise internet üzerinden hızlı ve sınır tanımaz bir üretim-tüketim ilişkisi söz konusudur. Bu süreçte durağan ve devingen görüntüler olarak fotoğraf ve video görüntüleri üretim – tüketim ilişkisi bağlamında toplumsal boyutta görsel bellek inşasında ve ikna sürecinde etkin bir biçimde kurgulanarak gerek iktidarı elinde tutanlar ve/veya yönlendirenler gerekse iktidara muhalif olanlar tarafından kullanılmaktadır. Bu çalışmanın amacı güncel yaşama ilişkin gerçekliğin fotoğraflar aracılığıyla nasıl kodlanarak topluma sunulduğunu ifade etmektir.

2025, Chillida. Mística y materia. Museo Nacional de Escultura. Ministerio de Cultura

Eduardo Chillida (Donostia-San Sebastián, 1924-2002), uno de los principales artistas españoles e internacionales de la segunda mitad del siglo XX, abordó desde el arte, mediante una producción de una poética profunda y silenciosa, su... more

2025

Hiermit erkläre ich, dass ich diese Arbeit selbständig verfasst habe, dass ich die verwendeten Quellen und Hilfsmittel vollständig angegeben habe und dass ich die Stellen der Arbeiteinschließlich Tabellen, Karten und Abbildungen -, die anderen Werken oder dem Internet im Wortlaut oder dem Sinn nach entnommen sind, auf jeden Fall unter Angabe der Quelle als Entlehnung kenntlich gemacht habe.

2025, Institut Desain & Bisnis Bali Press

This book, "Bali in Street Photography," presents the author's experiences and reflections as a lecturer exploring and documenting Bali through the lens of street photography. More than just a collection of photographs, this work is a narrative journey that combines on-the-ground photographic practice with multidisciplinary studies, encompassing cultural studies, sociology, and the development of semiotic meaning. Each photographic story presented not only captures unique and spontaneous everyday moments in various corners of Bali (the Island of the Gods), but also serves as a point of departure to delve into the layers of social, cultural, and symbolic meaning contained within. By bridging empirical experiences on the streets with theoretical frameworks, this book offers a unique perspective on understanding the dynamics of contemporary Balinese society, as well as the potential of street photography as a qualitative research method and a tool for critical interpretation of social reality. Readers are invited not only to enjoy the visuals but also to engage in the process of meaning-making and reflection on an authentic and ever-changing Bali.

2025

Several years ago, a method for measurement of image resolution for digital cameras using slanted-edge gradient analysis was adopted by the ISO. More recently, this method has been applied to the spatial frequency response and MTF of film and print scanners and CRT displays. We have previously described several causes of both bias and variation error in terms of the various signal processing steps involved. This analysis, when combined with observations from practical system testing, suggests modifications and extensions to the original method. We review several sources of measurement error and how to avoid them by careful data collection and processing. This involves refinements in data screening for signal encoding problems and improved edge-feature location and slope estimation.

2025, SPIE Proceedings

There are no fundamental differences between today's mobile telephone cameras and consumer digital still cameras that suggest many existing ISO imaging performance standards do not apply. To the extent that they have lenses, color filter arrays, detectors, apertures, image processing, and are hand held, there really are no operational or architectural differences. Despite this, there are currently differences in the levels of imaging performance. These are driven by physical and economic constraints, and image-capture conditions. Several ISO standards for resolution, well established for digital consumer digital cameras, require care when applied to the current generation of cell phone cameras. In particular, accommodation of optical flare, shading non-uniformity and distortion are recommended. We offer proposals for the application of existing ISO imaging resolution performance standards to mobile imaging products, and suggestions for extending performance standards to the characteristic behavior of camera phones.

2025, LA LUZ Y LA CÁMARA

Since the inception of photography and cinema, light has been the essential element that enables cameras to capture and transform reality into images. This paper explores how light interacts with camera components to capture still images and video.
It briefly explains the nature of light and the camera’s optical principles (lenses, shutter, sensor or film), contrasting analog and digital systems. Furthermore, it examines the applications of photography and cinematography in various fields: as artistic and creative media, in journalism as an informational tool (photojournalism), and in entertainment (film, television, advertising). Historical and conceptual aspects are highlighted, as well as the advantages of digital technologies for instant image availability. The paper concludes with reflections on the influence of visual media in contemporary society.

2025, Amsterdam University Press

The book series Photographic Media explores the 200-year history of photography from diverse critical perspectives. It offers international scholars a platform to examine photographic media in their many manifestations, e.g., as... more

2025, PLOS ONE

Global climate change and other anthropogenic stressors have heightened the need to rapidly characterize ecological changes in marine benthic communities across large scales. Digital photography enables rapid collection of survey images to meet this need, but the subsequent image annotation is typically a time consuming, manual task. We investigated the feasibility of using automated point-annotation to expedite cover estimation of the 17 dominant benthic categories from survey-images captured at four Pacific coral reefs. Interand intra-annotator variability among six human experts was quantified and compared to semi-and fully-automated annotation methods, which are made available at coralnet.ucsd. edu. Our results indicate high expert agreement for identification of coral genera, but lower agreement for algal functional groups, in particular between turf algae and crustose coralline algae. This indicates the need for unequivocal definitions of algal groups, careful training of multiple annotators, and enhanced imaging technology. Semi-automated annotation, where 50% of the annotation decisions were performed automatically, yielded cover estimate errors comparable to those of the human experts. Furthermore, fully-automated annotation yielded rapid, unbiased cover estimates but with increased variance. These results show that automated annotation can increase spatial coverage and decrease time and financial outlay for image-based reef surveys.

2025, Francesc Vera en Museari

Vinculat des de sempre a la docència, com a mestre i com a professor en
nombrosos màsters universitaris, és el fotògraf de la Mostra Internacional de Mim a Sueca, des del 1993. A més de realitzar exposicions individuals ha estat seleccionat a nombroses exposicions col·lectives. Té obra en vàries col·leccions públiques i privades, com la Fundació Xarxa Cultural de Barcelona, Fundación Telefónica de Madrid i IVAM de València. Ha col·laborat amb escriptors i artistes, com Josep Franco, Víctor Labrado, Xavier Serra, Manuel Baixauli, Xavier Mollà i Ricard Huerta, entre d’altres, en diversos projectes editorials i expositius. S’interessa pels conceptes d’espai i moment, tot centrant-se en formes i situacions de la quotidianitat que, mitjançant l’acte fotogràfic, puguen transformar-se en una unitat visual suggeridora per a l’espectador. Ha experimentat sobre les possibilitats plàstiques i expressives d’usar la càmera d’un iPhone amb l’aplicació Hipstamatic, treball al que pertanyen les imatges ací presentades.

2025, Segredos da Fotografia Panorâmica

Genera aspects of Panoramic Photography techniques and History
Glossary

2025, Virtual Archaeology Review

Extended :We present a methodological approach for the representation, visualisation and analysis of three-dimensional (3D) models of meaningful details in stone reliefs provided by digital documentation tools and subsequent processing. For this aim, anthropomorphous shapes engraved on a flat stone slab found in Sierra de Fontcalent (Alicante) are studied. The object under consideration was located near two archaeological sites, Cova del Fum–a cave with presence of the Chalcolithic material (López, 2010)–and the archaeological site of Fontcalent, with remains from different phases of occupation spanning from 7th-6thBC to the 20thcentury (Ximénez, 2012).In the last few years, the use of digital tools provided by new technologies and software development has left traditional work methodology behind (De Reu et al., 2014)while enabling the development of new approaches to both minimise heritage alteration and provide objective and accurate information (Lopez-Menchero, Marchante, Vincent...

2025

Junita Arneld's 2013 photographic series for Alam & Budaya Indonesia (Gedung Arsip Nasional, Jakarta) presents a visceral documentation of West Sumatra's Pacu Jawi bull races through high-speed photography. Her technical approach combines extreme proximity with fast shutter speeds (1/1000s+) to freeze the chaotic energy of these traditional races while preserving the intimate human-animal dynamic. Arneld's shallow depth of field isolates subjects from the muddy terrain, transforming splashing water and flying soil into dynamic visual elements. The images transcend mere action photography by capturing the cultural essence of the ritual - the synchronized movement of man and beast, the tension of competition, and the deep connection to rural traditions. This series demonstrates how technical precision can amplify cultural storytelling, creating images that convey both the physical intensity and spiritual significance of Indonesia's living heritage.

2025, Studia Digitalia

Focusing on domestic photographic albums and the faded metadata embedded within them, this essay argues for the critical importance of visual materiality and presentational form in understanding photographs. It proposes that accurate digitisation must account for not just the content image but also the tactile, contextual, and paratextual traces of the physical photograph. Metadata becomes the mechanism through which this translation from material to digital might occur.

2025, Medijska Istraživanja

2025, DergiPark (Istanbul University)

In this article, information about the properties, working principles and recent developments of CCD and CMOS sensors used in astronomy are given. Until the development of camera technology, sky observations were made using photographic plates in telescopes. With the development of CCD sensors in the 1960s, photographic plates were replaced by powerful cameras with CCD and CMOS sensors. Even today, all observations made in the optical field are made with the data taken by placing these cameras in the ocular part of the telescope. It is of great importance to understand the sensor technology in order to understand the observation techniques. This article has been prepared to fill this gap.

2025, Virtuelle Investigationen. Revisionen des Indizienparadigmas in Literatur und Kunst

Inwiefern schlieBen Open Source Investigations eine Revision des Indizienparadigmas ein? Der Aufsatz beantwortet diese Frage, indem er anhand von Fallbeispielen von Rechercheagenturen (bellingcat und Forensic Architecture) und investigativen Fotografen (Trevor Paglen und Edmund Clark) eine Verschiebung im Spurbegriff herausarbeitet: Im Rahmen digitaler Recherchen sind Spuren durch Datenverarbeitung hervorgebrachte mediale Artefakte, sie werden also nicht am Tatort vorgefunden, sondem rechnerisch produziert. In den Falldarstellungen und Methodenreflexionen der
Akteur:innen können dabei verschiedene Modi der virtuellen Spur unterschieden werden.

2025, Die Materialität des Digitalen

Schon häufiger wurde der Begriff der Spur für eine Ideologie-und Metaphysikkritik dienstbar gemacht. Laut Ginzburg suchen Spurenleser*innen nach einem tieferen Zusammenhang, »der die Phänomene der Oberfläche erklärt« und damit den »ideologischen Nebel« lichtet (Ginzburg 1979(Ginzburg /1995: 36f.): 36f.). Dabei ist nach Krämer von der Materialität der Spur auszugehen: »Spuren gehören der Welt der Dinge an. Nur kraft eines Kontinuums in der Materialität, Körperlichkeit und Sinnlichkeit der Welt ist das Spurenhinterlassen und Spurenlesen also möglich« (Krämer 2007a: 15). So hat auch Derrida in einem ideologie-und metaphysikkritischen Sinn den Begriff der Spur in den Vordergrund gestellt, um die unvorgreifliche Materialität der Schrift zu betonen und sie von der Dominanz der Stimme zu befreien (Derrida 1967: 293-340). Die Materialität von Spur und Schrift schien allerdings mit der Umstellung auf digitale Textverarbeitung an einen Wendepunkt gekommen, wenn man mit Mark Poster glaubt, dass »the computer dematerializes the written trace« (Poster 1990: 111). Doch hat sich der Glaube an die Immaterialität digitaler Daten, wie er sich in Licht-, Blitz-und Geschwindigkeitsmetaphern niederschlägt, seinerseits als »medial ideology« und »screen essentialism« herausgestellt . Denn die Einschreibeverfahren digitaler Daten sind nicht weniger materiell konfiguriert als

2025

Nell’ultimo decennio l’archeologia e la storia dell’isola d’ Elba si sono arricchite di ipotesi e suggestioni originali ed eclatanti ma, ad avviso dell’Autore, che tenta di analizzarne alcune, vacanti di peso probatorio.

2025

We evaluated the applicability of the Visible and Near Infrared bands (15 m spatial resolution) of the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) imagery in mapping land use ⁄ cover in the drylands of northern Ethiopia. Ground Control Points were collected from the field using Geographic Positioning System in which half of them were used for classification and the remaining for accuracy assessment. The image was classified into four dominant land use ⁄ cover types that represent the major habitats of the study site. Image classification was done using pixel-based supervised classification with the Maximum Likelihood Classification algorithm. The accuracy of classification was evaluated using error matrix and Kappa statistics. Finally, we found an overall classification accuracy of 80% and this implies that ASTER imagery can be used as a good source of data in mapping biodiversity at habitat scale in data scarce drylands of northern Ethiopia.

2025, Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems

2025

Esta monografia é focada não só em fotografia, mas, especificamente, no fazer fotográfico em sua definição mais verdadeira: o reproduzir de uma realidade criada. No capítulo um, discuto meu processo de criação, sublinhando as razões subjetivas que me levaram à produção de fotogramas, bem como a descrição objetiva das etapas que transpus até o resultado que aqui apresento. Para situar historicamente meu objeto de estudo, trago uma rápida biografia da técnica do fotograma, referenciando meu trabalho em dois dos principais nomes desta: Man Ray e Moholy-Nagy. Concluindo, me permito surpreender em como o discurso teórico aqui elaborado, potencializa meu processo criativo, se tornando o principal catalisador para que essa produção plástica do imaginário não se encerre nesses primeiros passos aqui expostos.

2025, Heritage Science

The article explores advanced image processing techniques for pigment discrimination in rock art paintings, emphasizing color separation using RGB (red, green, blue) and LHC Uv (Luminance, Hue, Chroma) imagery. It highlights the use of dimensionality reduction methods such as Principal Components Analisys PCA and Independent Component Analysis (ICA), with a focus on Gaussian Mixture Models (GMM) for probabilistic classification of image elements. This approach, applied to the Chomache archaeological site on the northernmost coast of the Atacama Desert in Chile, reveals previously undetected motifs and details, offering a nuanced perspective in rock art documentation and analysis. This proposal reinforces the value of rock art panel not only as a finished product but as a process.

2025, Annals of advances in automotive medicine / Annual Scientific Conference ... Association for the Advancement of Automotive Medicine. Association for the Advancement of Automotive Medicine. Scientific Conference

Understanding pediatric occupant postures can help researchers indentify injury risk factors, and provide information for prospective injury prediction. This study sought to observe lateral head positions and shoulder belt fit among older child automobile occupants during a scenario likely to result in sleeping - extended travel during the night. An observational, volunteer, in-transit study was performed with 30 pediatric rear-seat passengers, ages 7 to 14. Each was restrained by a three-point seatbelt and was driven for seventy-five minutes at night. Ten subjects used a high-back booster seat, ten used a low-back booster seat, and ten used none (based on the subject height and weight). The subjects were recorded with a low-light video camera, and one frame was analyzed per each minute of video. The high-back booster group exhibited a statistically significant (p<0.05) decrease in the mean frequency of poor shoulder belt fit compared to the no-booster and low-back booster groups...

2025, The International Journal of the Arts in Society: Annual Review

Has the sublime gone? If so, where? Can the sublime go anywhere, or is it our relationship to it... our perception of it that has changed? After the demise of Romanticism in the 19th Century and the advent of Modernism, new paradigms emerged that diminished the notions of beauty and the sublime. The increasing emphasis on a positivist notion of culture as that which is moving ever forward and upward, seems to have been fulfilled by new technologies, unknowable and thus terrifying as manifestations of a new sublime. Gilbert-Rolfe observes that "technology has subsumed the idea of the sublime because it, whether to a greater extent or an equal extent than nature, is terrifying in the limitless unknowability of its potential..." 2 In contrast to the technological sublime, the notion of silence, a pause, but also a kind of resistance has simultaneously emerged that provides an introspective aspect suggesting an alternative sublime. Roger Connah observes: "...the possibility of silence offers not only retreat, not only refuge, but respite from the world's excess." 3 These conditions provide a juxtaposition, and therefore a co-existence of qualities informing and affecting our own perceptions. But how do they co-exist? What are their conditions and their meanings in a contemporary society? In this paper I wish to address these issues and elucidate new interpretations of the contemporary sublime. Nature 4 (and its forces) has historically elicited emotions ranging from the beautiful and tranquil to the awesome and terrifying.

2025, The International Journal of the Arts in Society: Annual Review

2025, Majalah ilmiah Globe

Reconstruction of 3D, especially on height extraction using digital aerial photos taken from a non-metric camera and Unmanned Aerial Vehicle (UAV) is a challenging study. The purposes of this study are: (1) to determine the precision of an object's height reveal from a 3D model, and (2) to establish procedures to deliver the optimal result. Two or more overlapping aerial photos can be constructed into a 3D model by applying principles of collinearity and epipolar geometry using 3D reconstruction algorithm. Since there is an instability on a non-metric digital camera, the camera must be calibrated before 3D reconstruction is process, in that way the quality of spatial extraction, then can be measured. The study is conducted using 24 megapixels resolution Sony NEX7 digital camera and Hexacopter UAV. Camera Calibration Toolbox was utilized to calculate intrinsic parameters of the camera and a specific program is developed using MATLAB in order to build the 3D model and to obtain the object's height. The result validation is done by comparing the height from 3D model with that one measured using Electronic Total Station. The accuracy of the object's height up to 1 mm was successfully achieved, with largest height prediction error reaches of 15.2 cm at 70 m flying height above ground level.

2025

continuo avance de la técnica, los sistemas incrementan sus prestaciones y capacidad, lo que se refleja en la aparición de nuevos formatos gráficos. Un ejemplo de lo afirmado es la "reciente" aparición del formato JPEG, basado en esquemas de compresión disipadora o con pérdida de datos. Sin embargo, a estas alturas del desarrollo, sí existen algunos tipos de archivo que destacan por encima del resto gracias a su capacidad, versatilidad y difusión. Primeramente es necesario hacer una distinción entre los formatos raster o de barrido y el EPSF, formato PostScript desarrollado para ilustraciones e infográficos. Cada uno tiene una finalidad distinta y la manera de trabajar con ellos también es diferente. Los primeros (de barrido) están basados en mapas de bits, es decir, en la descripción de los píxels mediante coordenadas, mientras que el segundo está orientado a objeto (se describen los objetos que forman una imagen -líneas, polígonos, curvas, etc.) y su ubicación. Existen múltiples formatos basados en mapa de bits, pero sólo analizaremos tres: aquellos que pueden ser de verdad operativos en un archivo informatizado que ha de servir imágenes de gran calidad a múltiples finalidades, tanto en color como en blanco y negro (hoy predominante en el mundo de la prensa diaria). En primer lugar el TIFF (Tagged Image File Format), es el formato quizá más conocido. Soporta imágenes desde 1 a 24 bits por píxel (desde formato por líneas o line art hasta calidad fotográfica) y puede comprimirse. Otro formato de amplia y creciente difusión es el JPEG, con unas prestaciones en cuanto a reducción del tamaño de los archivos realmente asombrosas. La clave radica en la antes mencionada pérdida de información, pero en cantidades prácticamente tan insignificantes que no suponen un grave inconveniente pasa su uso. El último de los formatos estudiados será el PHOTO CD, un desarrollo específico de Kodak que no puede ser definido como "formato" a secas, ya que conlleva mucho más: toda una filosofía de la imagen digital. Su reciente aparición en el mercado todavía no ha permitido su asentamiento como estándar, pero su innovador solución a la fotografía doméstica digital y el aval de tener como respaldo a la primera empresa mundial en fotografía -Kodak-facilitará mucho el proceso en un breve plazo.

2025

This article examines spatial dynamics in Land Use/Land Cover (LU/LC) change in Kipengere ranges in the southern highlands of Tanzania. Though humans have been modifying land to obtain food and other essentials for thousands of years, the current trends, extents, and intensities of land-use change are far greater than ever in history. The trends seem to be unique. The Geographical Information System (GIS) was employed to track land use/land cover from 1984 to 2014. Household surveys, in-depth interviews, field observations, and Focus Group Discussions (FGDs) supplemented the information generated by the geographical information system. The data were collected from 104 respondents. Through the geographical information system, six land use classes namely: agriculture with scattered settlements, bushlands, woodlands, grasslands, plantation forests, and native trees were identified. All land use/ land cover classes changed over time. Changes in land use were caused by out-migration, the decline in soil fertility, the absence of a land use plan, and campaigns for planting invasive tree species mainly pines and eucalyptus. The study, thus, recommends the introduction of a landuse plan in each village to enhance natural resource management and reduce conflicting land uses in a specific area.

2025, Journal of Nutrition Education and Behavior

Objective: To examine the relationship between baseline and post accelerometer derived physical activity (PA) in 9-10 year old children participating in iCook 4-H, a 16-week, 5-state, randomized control family centered childhood obesity prevention program. Design, Setting and Participants: This family focus intervention was designed to promote PA through lifestyle modifications. Between group differences in minutes-per-day and intensity of PA were determined on 76 (Intervention n¼51; Control n¼25) accelerometer compliant participants. Outcome Measures and Analysis: All subjects wore an accelerometer (Actigraph GT3X+) for 7 days at baseline and post intervention assessment. Mean daily minutes of accelerometer derived sedentary time (ST) and PA including light (LPA), moderate (MPA), vigorous (VPA) and moderate-to-vigorous (MVPA) were evaluated during waking hours. A multivariate test, Wilks' Lambda, was used to determine the between group differences of PA from pre to post. Statistical significance was set at p # 0.05. Results: There were no significant differences between groups from baseline to post intervention in any intensity category of PA (mean min/dayAESD; p-value) ST baseline treatment [BT] 546 AE 57, baseline control ([BC] 547AE 62, post treatment [PT] 580 AE63, post control [PC] 563AE66 ; p¼0.28), LPA (BT 244AE48, BC 239AE50, PT 217AE52, PC 228AE50; p¼0.25), MPA (BT 33AE10, BC 36AE12, PT 28AE9, PC 33AE13; p¼0.61), VPA (BT 16AE9, BC 18AE9, PT 14AE7, PC 16AE8; p¼0.74), and MVPA (BT 50AE17, BC 54AE19, PT 42AE14, PC 49AE20; p¼0.58). Conclusions and Implications: Although there was not a significant increase in any category of physical activity due to the lifestyle intervention, iCook 4-H was able to encourage participants to maintain current activity levels. Funding: USDA.

2025, IEEE Transactions on Instrumentation and Measurement

2025, Applied Physics A

An easy-to-use and cheap diagnostic tool based on digital photography and 2D-FFT imaging processing is described that can be used to monitor the corrosion process occurring over time on the surface of metallic works of art in indoor and outdoor environments and to assess the stability of the materials employed for restoration. The proposed solution has the advantage of not requiring standard lighting and artifacts manipulation, that are not easily achievable in real applications. The imaging algorithm is capable of highlighting the changes in the surface uniformity due to the corrosion process and can be used to put in evidence the beginning of dangerous localized corrosion phenomena onto the metallic surface. Although this technique does not allow a quantitative measurement of the corrosion rate, it has proved to be an effective approach to assess the stability of protective coatings. The proposed processing has been tested in laboratory to asses the stability of SiO 2 -like protective coatings deposited by PECVD on a set of silver reference alloys submitted to a tarnishing test in the presence of H 2 S vapors.

2025, Натписи и записи 10

На следећим страницама представљена су два натписа са надгробних споменика локалних племића из села Мола у Бачкој, односно чланова граничарских племићких породица, Петра Велимировића и Драгића Каракашевића (1797–1878). Натписи доносе само... more