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  • 1
    Digitale Medien
    Digitale Medien
    Bradford : Emerald
    Assembly automation 23 (2003), S. 53-59 
    ISSN: 0144-5154
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Maschinenbau
    Notizen: This paper describes an imaging system that was developed to aid industrial bin picking tasks. The purpose of this system was to provide accurate 3D models of parts and objects in the bin, so that precise grasping operations could be performed. The technology described here is based on two types of sensors: range mapping scanners and video cameras. The geometry of bin contents was reconstructed from range maps and modeled using superquadric representations, providing location and parts surface information that can be employed to guide the robotic arm. Texture was also provided by the video streams and applied to the recovered models. The system is expected to improve the accuracy and efficiency of bin sorting and represents a step toward full automation.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Bradford : Emerald
    Industrial robot 31 (2004), S. 435-442 
    ISSN: 0143-991X
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Maschinenbau
    Notizen: The current threats to US security, both military and civilian, have led to an increased interest in the development of technologies to safeguard national facilities such as military bases, federal buildings, nuclear power plants, and national laboratories. As a result, the imaging, robotics, and intelligent systems (IRIS) laboratory at the University of Tennessee has established a research consortium, known as security automation and future electromotive robotics (SAFER), to develop, test, and deploy sensing and imaging systems. In this paper, we describe efforts made to build multi-perspective mosaics of infrared and color video data for the purpose of under vehicle inspection. It is desired to create a large, high-resolution mosaic that may be used to quickly visualize the entire scene shot by a camera making a single pass underneath the vehicle. Several constraints are placed on the video data in order to facilitate the assumption that the entire scene in the sequence exists on a single plane. Therefore, a single mosaic is used to represent a single video sequence.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Bradford : Emerald
    Sensor review 23 (2003), S. 223-229 
    ISSN: 0260-2288
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: In this paper, we explore the technical challenges to automatically generate computer-aided design models of existing vehicle parts using laser range imaging techniques. We propose a complete system that integrates data acquisition and model reconstruction. We discuss methods to resolve the occlusion problem and the associated registration problem. We also present our reconstruction algorithm. This range image-based, computer-aided reverse engineering system has a potential for faster model reconstruction over traditional reverse engineering technologies. Finally, we present results derived from the system.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    ISSN: 0144-5154
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Maschinenbau
    Notizen: Purpose - Investigate the use of two imaging-based methods - coded pattern projection and laser-based triangulation - to generate 3D models as input to a rapid prototyping pipeline. Design/methodology/approach - Discusses structured lighting technologies as suitable imaging-based methods. Two approaches, coded-pattern projection and laser-based triangulation, are specifically identified and discussed in detail. Two commercial systems are used to generate experimental results. These systems include the Genex Technologies 3D FaceCam and the Integrated Vision Products Ranger System. Findings - Presents 3D reconstructions of objects from each of the commercial systems. Research limitations/implications - Provides background in imaging-based methods for 3D data collection and model generation. A practical limitation is that imaging-based systems do not currently meet accuracy requirements, but continued improvements in imaging systems will minimize this limitation. Practical implications - Imaging-based approaches to 3D model generation offer potential to increase scanning time and reduce scanning complexity. Originality/value - Introduces imaging-based concepts to the rapid prototyping pipeline.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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