Maurizio Muzzupappa - Academia.edu (original) (raw)

Papers by Maurizio Muzzupappa

DYNA INGENIERIA E INDUSTRIA, 2015

Lecture Notes in Mechanical Engineering, 2016

Journal of Cultural Heritage, 2017

Marine Technology Society Journal, 2016

Marine Technology Society Journal, 2016

On November 2, 2001, the UNESCO Convention on the Protection of the Underwater Cultural Heritage ... more On November 2, 2001, the UNESCO Convention on the Protection of the Underwater Cultural Heritage provided a detailed state cooperation system and set out the basic principles for the protection of underwater cultural heritage. To date, the Convention has been ratified by 51 countries. One of the four main principles states that the in situ preservation of underwater cultural heritage should be considered as the first option before allowing or engaging in any further activities. In accordance with these principles and recommendations, in the last years many projects intended for developing and testing new techniques and tools to support in situ conservation of underwater archaeological remains have been funded and are now underway. This paper describes the contribution of the CoMAS project (In situ conservation planning of Underwater Archaeological Artifacts—http://www.comasproject.eu), funded by the Italian Ministry of Education, Universities and Research (MIUR) and run by a partnership of private companies and public research centers. The CoMAS project aims at the development of new materials, techniques, and tools for the documentation, conservation, and restoration of underwater archaeological sites in their natural environment. The paper describes in detail the results achieved during the project in the development of innovative materials, mechatronic tools, and armed remotely operated vehicle systems that can efficiently support the restorers’ work in all their activities for preserving underwater cultural heritage in its original location on the seafloor. © 2016, Marine Technology Society Journal. All rights reserved.

Http Dx Doi Org 10 1080 03043790110068684, Jul 2, 2010

ABSTRACT This paper deals with a semester-long educational experience the authors led at the Univ... more ABSTRACT This paper deals with a semester-long educational experience the authors led at the University of Calabria for reproducing current developments and uncertainties in real-world concurrent engineering, knowledge management practice and virtual enterprise organization. Students with different backgrounds (mechanical engineering, computer science engineering and management engineering) were selected in order to form a laboratory class and then were divided into many multidisciplinary teams. Such teams played different roles and were required to collaborate on the Web to simulate a virtual enterprise, which was aimed at designing virtual prototypes of average complexity articles. In addition to that, any team was involved in the construction of a knowledge base for codifying the explicit knowledge arising from the execution of technical and managerial tasks. The paper deals with models, methodologies and technologies that have been used in this laboratory experience and, moreover, it describes an approach for simulating, in an educational environment, some aspects of the behaviour of virtual enterprises generated by a virtual organization.

Actas Del Xi Congreso Internacional De Ingenieria Grafica Logrono Pamplona 2 3 Y 4 Junio Vol 1 1999 Isbn 84 699 0473 6 Pags 136 147, 1999

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015

Recovering correct or at least realistic colors of underwater scenes is a very challenging issue ... more Recovering correct or at least realistic colors of underwater scenes is a very challenging issue for imaging techniques, since illumination conditions in a refractive and turbid medium as the sea are seriously altered. The need to correct colors of underwater images or videos is an important task required in all image-based applications like 3D imaging, navigation, documentation, etc. Many imaging enhancement methods have been proposed in literature for these purposes. The advantage of these methods is that they do not require the knowledge of the medium physical parameters while some image adjustments can be performed manually (as histogram stretching) or automatically by algorithms based on some criteria as suggested from computational color constancy methods. One of the most popular criterion is based on gray-world hypothesis, which assumes that the average of the captured image should be gray. An interesting application of this assumption is performed in the Ruderman opponent color space lαβ, used in a previous work for hue correction of images captured under colored light sources, which allows to separate the luminance component of the scene from its chromatic components. In this work, we present the first proposal for color correction of underwater images by using lαβ color space. In particular, the chromatic components are changed moving their distributions around the white point (white balancing) and histogram cutoff and stretching of the luminance component is performed to improve image contrast. The experimental results demonstrate the effectiveness of this method under gray-world assumption and supposing uniform illumination of the scene. Moreover, due to its low computational cost it is suitable for real-time implementation.

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015

Remotely Operated underwater Vehicles (ROVs) play an important role in a number of operations con... more Remotely Operated underwater Vehicles (ROVs) play an important role in a number of operations conducted in shallow and deep water (e.g.: exploration, survey, intervention, etc.), in several application fields like marine science, offshore construction, and underwater archeology. ROVs are usually equipped with different imaging devices, both optical and acoustic. Optical sensors are able to generate better images in close range and clear water conditions, while acoustic systems are usually employed in long range acquisitions and do not suffer from the presence of turbidity, a well-known cause of coarser resolution and harder data extraction. In this work we describe the preliminary steps in the development of an opto-acoustic camera able to provide an on-line 3D reconstruction of the acquired scene. Taking full advantage of the benefits arising from the opto-acoustic data fusion techniques, the system was conceived as a support tool for ROV operators during the navigation in turbid waters, or in operations conducted by means of mechanical manipulators. The paper presents an overview of the device, an ad-hoc methodology for the extrinsic calibration of the system and a custom software developed to control the opto-acoustic camera and supply the operator with visual information.

OCEANS 2015 - Genova, 2015

— In accordance to the recommendations of the 2001 UNESCO Convention on the Protection of Underwa... more — In accordance to the recommendations of the 2001 UNESCO Convention on the Protection of Underwater Culturage Heritage in the last years many projects have been founded and are now underway developing and testing new techniques and tools to support in-situ conservation of underwater archaeological remains. This paper describes the contribution of the CoMAS project ("In situ conservation planning of Underwater Archaeological Artefacts" – www.comasproject.eu) in the development of innovative electromechanical devices that can efficiently support the cleaning process of submerged archaeological structures.

Correct tracking of the user position is crucial for an Augmented Reality (AR) application. For t... more Correct tracking of the user position is crucial for an Augmented Reality (AR) application. For this reason, tracking became a very important research subject in the field of real-time AR. The most common solution to implement an AR system is based on the use of an Head Mounted Display (HMD) and two cameras for the stereoscopic video see-through visualization. Almost all the systems presented in literature employ one camera to obtain a marker based video-tracking. This technique is widespread because it offers sufficient precision and accuracy. This paper describes an innovative tracking solution based on a stereo vision approach which aims to use the information coming from both cameras in order to improve tracking accuracy. The proposed solution is also able to switch itself into a standard single camera visual tracking when the stereo pair correspondence is missing. Further, a comparison of the performance of both mono and stereo tracking is reported.

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2005

... To overcome these market demands, new production processes have been developed and one of ...... more ... To overcome these market demands, new production processes have been developed and one of ... taking into account the next desired refer-ence point, by applying an appropriate ... Ultimately this procedure allows for higher precision as compared with the simple application of ...

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2011

In the field of 3D scanning, there is an increasing need for more accurate technologies to acquir... more In the field of 3D scanning, there is an increasing need for more accurate technologies to acquire 3D models of close range objects. Underwater exploration, for example, is very hard to perform due to the hostile conditions and the bad visibility of the environment. Some application fields, like underwater archaeology, require to recover tridimensional data of objects that cannot be moved from their site or touched in order to avoid possible damages. Photogrammetry is widely used for underwater 3D acquisition, because it requires just one or two digital still or video cameras to acquire a sequence of images taken from different viewpoints. Stereo systems composed by a pair of cameras are often employed on underwater robots (i.e. ROVs, Remotely Operated Vehicles) and used by scuba divers, in order to survey archaeological sites, reconstruct complex 3D structures in aquatic environment, estimate in situ the length of marine organisms, etc. The stereo 3D reconstruction is based on the triangulation of corresponding points on the two views. This requires to find in both images common points and to match them (correspondence problem), determining a plane that contains the 3D point on the object. Another 3D technique, frequently used in air acquisition, solves this point-matching problem by projecting structured lighting patterns to codify the acquired scene. The corresponding points are identified associating a binary code in both images. In this work we have tested and compared two whole-field 3D imaging techniques (active and passive) based on stereo vision, in underwater environment. A 3D system has been designed, composed by a digital projector and two still cameras mounted in waterproof housing, so that it can perform the various acquisitions without changing the configuration of optical devices.

International Journal of Heritage in the Digital Era, 2012

International Journal of Heritage in the Digital Era, 2012

DYNA INGENIERIA E INDUSTRIA, 2015

Lecture Notes in Mechanical Engineering, 2016

Journal of Cultural Heritage, 2017

Marine Technology Society Journal, 2016

Marine Technology Society Journal, 2016

On November 2, 2001, the UNESCO Convention on the Protection of the Underwater Cultural Heritage ... more On November 2, 2001, the UNESCO Convention on the Protection of the Underwater Cultural Heritage provided a detailed state cooperation system and set out the basic principles for the protection of underwater cultural heritage. To date, the Convention has been ratified by 51 countries. One of the four main principles states that the in situ preservation of underwater cultural heritage should be considered as the first option before allowing or engaging in any further activities. In accordance with these principles and recommendations, in the last years many projects intended for developing and testing new techniques and tools to support in situ conservation of underwater archaeological remains have been funded and are now underway. This paper describes the contribution of the CoMAS project (In situ conservation planning of Underwater Archaeological Artifacts—http://www.comasproject.eu), funded by the Italian Ministry of Education, Universities and Research (MIUR) and run by a partnership of private companies and public research centers. The CoMAS project aims at the development of new materials, techniques, and tools for the documentation, conservation, and restoration of underwater archaeological sites in their natural environment. The paper describes in detail the results achieved during the project in the development of innovative materials, mechatronic tools, and armed remotely operated vehicle systems that can efficiently support the restorers’ work in all their activities for preserving underwater cultural heritage in its original location on the seafloor. © 2016, Marine Technology Society Journal. All rights reserved.

Http Dx Doi Org 10 1080 03043790110068684, Jul 2, 2010

ABSTRACT This paper deals with a semester-long educational experience the authors led at the Univ... more ABSTRACT This paper deals with a semester-long educational experience the authors led at the University of Calabria for reproducing current developments and uncertainties in real-world concurrent engineering, knowledge management practice and virtual enterprise organization. Students with different backgrounds (mechanical engineering, computer science engineering and management engineering) were selected in order to form a laboratory class and then were divided into many multidisciplinary teams. Such teams played different roles and were required to collaborate on the Web to simulate a virtual enterprise, which was aimed at designing virtual prototypes of average complexity articles. In addition to that, any team was involved in the construction of a knowledge base for codifying the explicit knowledge arising from the execution of technical and managerial tasks. The paper deals with models, methodologies and technologies that have been used in this laboratory experience and, moreover, it describes an approach for simulating, in an educational environment, some aspects of the behaviour of virtual enterprises generated by a virtual organization.

Actas Del Xi Congreso Internacional De Ingenieria Grafica Logrono Pamplona 2 3 Y 4 Junio Vol 1 1999 Isbn 84 699 0473 6 Pags 136 147, 1999

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015

Recovering correct or at least realistic colors of underwater scenes is a very challenging issue ... more Recovering correct or at least realistic colors of underwater scenes is a very challenging issue for imaging techniques, since illumination conditions in a refractive and turbid medium as the sea are seriously altered. The need to correct colors of underwater images or videos is an important task required in all image-based applications like 3D imaging, navigation, documentation, etc. Many imaging enhancement methods have been proposed in literature for these purposes. The advantage of these methods is that they do not require the knowledge of the medium physical parameters while some image adjustments can be performed manually (as histogram stretching) or automatically by algorithms based on some criteria as suggested from computational color constancy methods. One of the most popular criterion is based on gray-world hypothesis, which assumes that the average of the captured image should be gray. An interesting application of this assumption is performed in the Ruderman opponent color space lαβ, used in a previous work for hue correction of images captured under colored light sources, which allows to separate the luminance component of the scene from its chromatic components. In this work, we present the first proposal for color correction of underwater images by using lαβ color space. In particular, the chromatic components are changed moving their distributions around the white point (white balancing) and histogram cutoff and stretching of the luminance component is performed to improve image contrast. The experimental results demonstrate the effectiveness of this method under gray-world assumption and supposing uniform illumination of the scene. Moreover, due to its low computational cost it is suitable for real-time implementation.

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015

Remotely Operated underwater Vehicles (ROVs) play an important role in a number of operations con... more Remotely Operated underwater Vehicles (ROVs) play an important role in a number of operations conducted in shallow and deep water (e.g.: exploration, survey, intervention, etc.), in several application fields like marine science, offshore construction, and underwater archeology. ROVs are usually equipped with different imaging devices, both optical and acoustic. Optical sensors are able to generate better images in close range and clear water conditions, while acoustic systems are usually employed in long range acquisitions and do not suffer from the presence of turbidity, a well-known cause of coarser resolution and harder data extraction. In this work we describe the preliminary steps in the development of an opto-acoustic camera able to provide an on-line 3D reconstruction of the acquired scene. Taking full advantage of the benefits arising from the opto-acoustic data fusion techniques, the system was conceived as a support tool for ROV operators during the navigation in turbid waters, or in operations conducted by means of mechanical manipulators. The paper presents an overview of the device, an ad-hoc methodology for the extrinsic calibration of the system and a custom software developed to control the opto-acoustic camera and supply the operator with visual information.

OCEANS 2015 - Genova, 2015

— In accordance to the recommendations of the 2001 UNESCO Convention on the Protection of Underwa... more — In accordance to the recommendations of the 2001 UNESCO Convention on the Protection of Underwater Culturage Heritage in the last years many projects have been founded and are now underway developing and testing new techniques and tools to support in-situ conservation of underwater archaeological remains. This paper describes the contribution of the CoMAS project ("In situ conservation planning of Underwater Archaeological Artefacts" – www.comasproject.eu) in the development of innovative electromechanical devices that can efficiently support the cleaning process of submerged archaeological structures.

Correct tracking of the user position is crucial for an Augmented Reality (AR) application. For t... more Correct tracking of the user position is crucial for an Augmented Reality (AR) application. For this reason, tracking became a very important research subject in the field of real-time AR. The most common solution to implement an AR system is based on the use of an Head Mounted Display (HMD) and two cameras for the stereoscopic video see-through visualization. Almost all the systems presented in literature employ one camera to obtain a marker based video-tracking. This technique is widespread because it offers sufficient precision and accuracy. This paper describes an innovative tracking solution based on a stereo vision approach which aims to use the information coming from both cameras in order to improve tracking accuracy. The proposed solution is also able to switch itself into a standard single camera visual tracking when the stereo pair correspondence is missing. Further, a comparison of the performance of both mono and stereo tracking is reported.

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2005

... To overcome these market demands, new production processes have been developed and one of ...... more ... To overcome these market demands, new production processes have been developed and one of ... taking into account the next desired refer-ence point, by applying an appropriate ... Ultimately this procedure allows for higher precision as compared with the simple application of ...

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2011

In the field of 3D scanning, there is an increasing need for more accurate technologies to acquir... more In the field of 3D scanning, there is an increasing need for more accurate technologies to acquire 3D models of close range objects. Underwater exploration, for example, is very hard to perform due to the hostile conditions and the bad visibility of the environment. Some application fields, like underwater archaeology, require to recover tridimensional data of objects that cannot be moved from their site or touched in order to avoid possible damages. Photogrammetry is widely used for underwater 3D acquisition, because it requires just one or two digital still or video cameras to acquire a sequence of images taken from different viewpoints. Stereo systems composed by a pair of cameras are often employed on underwater robots (i.e. ROVs, Remotely Operated Vehicles) and used by scuba divers, in order to survey archaeological sites, reconstruct complex 3D structures in aquatic environment, estimate in situ the length of marine organisms, etc. The stereo 3D reconstruction is based on the triangulation of corresponding points on the two views. This requires to find in both images common points and to match them (correspondence problem), determining a plane that contains the 3D point on the object. Another 3D technique, frequently used in air acquisition, solves this point-matching problem by projecting structured lighting patterns to codify the acquired scene. The corresponding points are identified associating a binary code in both images. In this work we have tested and compared two whole-field 3D imaging techniques (active and passive) based on stereo vision, in underwater environment. A 3D system has been designed, composed by a digital projector and two still cameras mounted in waterproof housing, so that it can perform the various acquisitions without changing the configuration of optical devices.

International Journal of Heritage in the Digital Era, 2012

International Journal of Heritage in the Digital Era, 2012