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pro vyhledávání: '"Carl F. R. Weiman"'
Autor:
Carl F. R. Weiman, Markus Vincze
Publikováno v:
SPIE Proceedings.
The term 'active vision' was first used by Bajcsy at a NATO workshop in 1982 to describe an emerging field of robot vision which departed sharply from traditional paradigms of image understanding and machine vision. The new approach embeds a moving c
Autor:
Markus Vincze, Carl F. R. Weiman
Publikováno v:
SPIE Proceedings.
Visual tracking is a vital task in active vision research, traffic surveillance, face following, robotics, and many other applications. This paper investigates the principles of finding optimal tracking performance depending on image tesselation and
Autor:
Carl F. R. Weiman
Publikováno v:
Visual Information Processing
Log-polar pixel tessellation in the image plane improves binocular stereo perception compared to the familiar uniform Cartesian tessellation. This paper describes the advantages by analyzing the 3D intersections of projections of dual retinas. The 3D
Autor:
Carl F. R. Weiman
Publikováno v:
Visual Information Processing
A three-stage color video compression system capable of 1,000-to-i compression has been implemented in real time on aVME based prototype system. Stage 1 digitizes the image at CCD camera resolution, and splits the data into color andcontrast channels
Autor:
Carl F. R. Weiman, Steven Joseph King
Publikováno v:
SPIE Proceedings.
HelpMate is a mobile robotic materials transport system that performs fetch and carry tasks at Danbury Hospital. It autonomously navigates along the main arteries of the hospital crossing between buildings via interconnecting hallways and uses radio
Autor:
Carl F. R. Weiman, Robert G. Weber
Publikováno v:
Machine Vision Systems Integration in Industry.
Traditional Cartesian coordinates are intrinsic to most CCD imagers video displays and image processing equipment. While Cartesian coordinates are efficient for image translation they are poorly suited for rotation zoom and perspective image transfor
Autor:
Carl F. R. Weiman
Publikováno v:
SPIE Proceedings.
A three stage process for compressing real time color imagery by factors in the range of 1600-to-i is proposed for remote driving'. The key is to match the resolution gradient of human vision and preserve only those cues important for driving. Some h
Autor:
Carl F. R. Weiman, Richard D. Juday
Publikováno v:
Intelligent Robots and Computer Vision VIII: Algorithms and Techniques.
The use of log-polar image sampling coordinates rather than conventional Cartesian coordinates offers a number of advantages for visual tracking and docking of space vehicles. Pixel count is reduced without decreasing the field of view, with commensu
Autor:
Norman C. Griswold, Carl F. R. Weiman
Publikováno v:
Intelligent Robots and Computer Vision VIII: Algorithms and Techniques.
The fusion mechanism for application in stereo analysis of range restricted the depth of field and therefore required a shift variant mechanism in the peripheral area to find disparity. Misregistration was prevented by restricting the disparity detec
Autor:
Carl F. R. Weiman
Publikováno v:
Intelligent Robots and Computer Vision VIII: Algorithms and Techniques.
The log-polar coordinate system, inherent in both polar exponential sensor arrays and log-polar remapped video imagery, is identical to the coordinate system of its corresponding Hough transform parameter space. The resulting unification of iconic an