Turning images into 3-D models (original) (raw)
Related papers
The potential of 3D techniques for cultural heritage object documentation
2007
The generation of 3D models of objects has become an important research point in many fields of application like industrial inspection, robotics, navigation and body scanning. Recently the techniques for generating photo-textured 3D digital models have interested also the field of Cultural Heritage, due to their capability to combine high precision metrical information with a qualitative and photographic description of the objects. In fact this kind of product is a fundamental support for documentation, studying and restoration of works of art, until a production of replicas by fast prototyping techniques. Close-range photogrammetric techniques are nowadays more and more frequently used for the generation of precise 3D models. With the advent of automated procedures and fully digital products in the 1990s, it has become easier to use and cheaper, and nowadays a wide range of commercial software is available to calibrate, orient and reconstruct objects from images. This paper presents the complete process for the derivation of a photorealistic 3D model of an important basalt stela (about 70 x 60 x 25 cm) discovered in the archaeological site of Tilmen Höyük, in Turkey, dating back to 2nd mill. BC. We will report the modeling performed using passive and active sensors and the comparison of the achieved results.
The potential of 3D techniques for cultural heritage object documentation
Videometrics IX, 2007
The generation of 3D models of objects has become an important research point in many fields of application like industrial inspection, robotics, navigation and body scanning. Recently the techniques for generating photo-textured 3D digital models have interested also the field of Cultural Heritage, due to their capability to combine high precision metrical information with a qualitative and photographic description of the objects. In fact this kind of product is a fundamental support for documentation, studying and restoration of works of art, until a production of replicas by fast prototyping techniques. Close-range photogrammetric techniques are nowadays more and more frequently used for the generation of precise 3D models. With the advent of automated procedures and fully digital products in the 1990s, it has become easier to use and cheaper, and nowadays a wide range of commercial software is available to calibrate, orient and reconstruct objects from images. This paper presents the complete process for the derivation of a photorealistic 3D model of an important basalt stela (about 70 x 60 x 25 cm) discovered in the archaeological site of Tilmen Höyük, in Turkey, dating back to 2 nd mill. BC. We will report the modeling performed using passive and active sensors and the comparison of the achieved results.
Geoinformatics FCE CTU, 2013
Nowadays, there are two main approaches to cultural heritage documentation: a precise documentation by several techniques such as professional close range photogrammetry, classical geodetical measurement and 3D scanning, or a simple documentation using non expensive devices and instruments, often based on free software. In many projects it is not possible to use precise and expensive instruments for time, transportational, financial and authoritative permission reasons. At the Laboratory of Photogrammetry at the CTU Prague, we are focused on both types of documentation and the necessary visualisation of outputs; the long-term and very important aim of our research in this field is to develop small, inexpensive devices and test appropriate technology for the 3D documentation of cultural heritage objects. There is our prototype of an optical correlation system, which uses a motorised calibrated digital camera on a linear base. The second part shows several open source photogrammetric...
Contributions of Photometry to the 3D-digitization of Heritage
Proceedings of the 4th ACM International workshop on Structuring and Understanding of Multimedia heritAge Contents
The nature of archaeological research implies documenting and recording the remains or structures uncovered in the most precise and objective way possible. Archaeologists use digital tools precisely because they meet the challenges of their discipline. The creation of digital twins thus actively contributes to the study, protection and dissemination of archaeological heritage. From the study of a territory to the analysis of a trace left by a tool, archaeology reasons at different scales and combines analyses and multi-scalar approaches. This represents a challenge in itself. The development of an open-source photometric stereo suite makes it possible to respond in part to this work by taking into account the great diversity of archaeological remains while producing models that combine volume accuracy and color reliability. CCS CONCEPTS • Computing methodologies → Reconstruction; • Applied computing → Anthropology.
Photogrammetry versus 3D scanner: producing 3D models of museums' artifacts
Emerald Publishing Limited, Collection and Curation , 2021
Purpose-This paper aims to help archaeologists, museums' curators and technicians in understanding the principle of using the photogrammetry and 3D scanner for the museum archaeological objects in a practical way by presenting specific examples for both methods. Another purpose is to evaluate the performance offered by the photogrammetry and the three-dimensional (3D) scanner device, with the aim of providing a suitable solution to the different shapes and sizes of the archaeological objects. Design/methodology/approach-The author used the camera Canon EOS 1300 D for photographing and Einscan Pro 2X Plus as a 3D scanning device for several years on different kinds of objects made of various materials, including ceramic, stone, glass and metal. Findings-This paper showed that both approaches create 3D models with high resolution in easy and different ways. Practical implications-Handling objects and preparing them for photographing or scanning has involved a number of caveats and challenges regarding the risk of damage that the author had to bear in mind. Originality/value-This paper is completely based on the author's personal experiences of creating 3D image of various objects in the project of Documentation of Objects in the Jordanian Archaeological Museums.
MM Science Journal, 2023
In recent years, close-range photogrammetric scanning systems have become increasingly popular due to their low-cost hardware, components, and user-friendly software. These systems utilize high-resolution cameras and advanced algorithms to produce accurate and precise 3D models, which are essential for analyzing, documenting, and preserving cultural heritage. While there are various methods for creating 3D models, minimizing cost and time is a primary concern. This paper focuses on photogrammetry as an option for surface reconstruction that might be used to make 3D representations of transparent objects. The objective of the research is to investigate the feasibility of creating appropriate 3D models for surface reconstruction and units of transparent objects through photogrammetry, utilizing open-source photogrammetry algorithms.
Journal of Archaeological Science: Reports, 2018
Accurately recording information is the single most important stage of an archaeological project. The biggest technological improvement to documentation techniques in the last 15 years has been the spread of various 3D digitization technologies, such as computer vision photogrammetry and 3D laser scanning. These technologies have allowed archaeologists to quickly and accurately capture and reconstruct the geometry and colors of the subjects being studied. Each of the various methods for 3D digitization of cultural heritage materials has advantages and disadvantages, such as processing speed, cost of equipment, and the accuracy of the captured data. Laser scanned data is among the most accurate geometrical data available in modern scanning techniques, but it lacks in its ability to accurately capture textures and diagnostic coloration information. Photogrammetric data produces highly detailed photographic textures on models, but the geometric data tends to be of a lower definition than the laser scanned data. In this paper, the authors discuss a new methodology that combines the advantages of computer vision photogrammetry with those of laser scanning by applying the photographic textures produced with photogrammetry to the geometric data obtained from laser scanning. This method allows archaeologists to achieve the best possible fidelity 3D models for interpretation and study.
Imap3d: low-cost photogrammetry for cultural heritage
In the new Digital Era the rapid development of digital technology allows us to obtain easily the high resolution images through Digital Photogrammetry or the detailed 3D data of the object by the technique of laser scanner. Nevertheless, both techniques present several drawbacks: in the case of aerial photogrammetric applications, image acquisition is one of the most expensive steps. Especially if aerial images must be taken, the expenses are always high because of the high-cost of aircraft flight. In the case of laser scanner, the own cost of the material is one of the main problems. Furthermore, to obtain a final product is yet something difficult to overcome and a time-consuming activity. The research group IMAP3D has developed a low-cost methodology based on shutting photographs from an unmanned aerial platform completed by terrestrial exposures. The system is constituted by a helium zeppelin and a digital camera fixed in a specific device equipped with servomechanisms, video and radio control which allow to obtain video signal of camera view over a monitor in real time, as well as to control the two main different rotations of the camera. These types of solutions can be used for the documentation, reconstruction and visualization of historical buildings or archaeological sites where the area of interest is small, with a difficult access and a large scale is required. This methodology is complemented with the development of different tools that enable us to process the input data captured by the zeppelin: from the camera self-calibration and 3D reconstruction of the model to the automatic generation and visualization of Digital Elevation Models (DEM) and ortophoto in GeoVRML. Particularly, the methodology developed has been tested over the emblematic archaeological settlement of Clvnia situated in Castile (Spain).
3D Digital modeling for archeology using close range photogrammetry
MATEC Web of Conferences, 2018
This research is to evaluate the feasibility of applying three-dimensional modelling of the close-range photogrammetry in documenting archaeological monuments by using digital photogrammetry image processing software and digital consumer camera. The digital camera used was Nikon D3100, the processing software was (AgiSoft PhotoScan) and (ArcGIS, ArcScene extension). The study area was selected in the centre of Baghdad province by choosing one of the archeological monuments in it, namely the Abbasid alace. A set of camera locations represent the locations of the images, and as a result of the processing, 81 digital images were arranged in a sequence in which the results of this step were verified. The points cloud after processing were 1,082,617 points. Six control points were selected, used as distances constrained. The validity of the fixed location of the points can be ascertained by checking the data. The program provide the error and accuracy for each image, where a total error ...
3D Models in Cultural Heritage
International Journal of Computational Methods in Heritage Science (IJCMHS), 2017
Metric surveys are a key component in Cultural Heritage. Metric surveys are in fact a basic input for a wide range of activities, from documentation to study, from restoration to valorization, that rely on the current condition of the monument. In recent years, laser scanning and, more recently, digital photogrammetry offered new perspectives, widening the perspectives of 3D Cultural Heritage recording. Digital technologies provide new ways to collaborate, record excavations, and restore artifacts, and in such a way they are transforming the way Cultural Heritage practitioners (researchers, archaeologists, curators) work. This paper attempts to review the methods for 3D digitization that are today available and discuss the possible use of 3D models beyond the pure extraction of reliable and accurate measures.