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Human saccadic eye movements and tracking by active foveation in log polar space

Lim, Fee-Lee, Venkatesh, Svetha and West, Geoffrey A. 1996, Human saccadic eye movements and tracking by active foveation in log polar space, in SPIE 1996 : Proceedings of SPIE - the International Society for Optical Engineering, SPIE, Bellingham, Wash., pp. 338-349.

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Title Human saccadic eye movements and tracking by active foveation in log polar space
Author(s) Lim, Fee-Lee
Venkatesh, Svetha
West, Geoffrey A.
Conference name Human Vision and Electronic Imaging (1996 : San Jose, Calif.)
Conference location San Jose, Calif.
Conference dates 29 Jan.-1 Feb. 1996
Title of proceedings SPIE 1996 : Proceedings of SPIE - the International Society for Optical Engineering
Editor(s) Rogowitz, Bernice E.
Allebach, Jan P.
Publication date 1996
Conference series Human Vision and Electronic Imaging
Start page 338
End page 349
Total pages 12
Publisher SPIE
Place of publication Bellingham, Wash.
Keyword(s) complex logarithmic mapping
space variant sensing
active vision
foveation
tracking
raytracing
Summary One of the possible models of the human visual system (HVS) in the computer vision literature has a high resolution fovea and exponentially decreasing resolution periphery. The high resolution fovea is used to extract necessary information in order to solve a vision task and the periphery may be used to detect motion. To obtain the desired information, the fovea is guided by the contents of the scene and other knowledge to position the fovea over areas of interest. These eye movements are called saccades and corrective saccades. A two stage process has been implemented as a mechanism for changing foveation in log polar space. Initially, the open loop stage roughly foveates on the best interest feature and then the closed loop stage is invoked to accurately iteratively converge onto the foveation point. The open loop stage developed for the foveation algorithm is applied to saccadic eye movements and a tracking system. Log polar space is preferred over Cartesian space as: (1) it simultaneously provides high resolution and a wide viewing angle; and (2) feature invariance occurs in the fovea which simplifies the foveation process.
ISBN 081942031X
ISSN 0277-786X
Language eng
Field of Research 089999 Information and Computing Sciences not elsewhere classified
Socio Economic Objective 970108 Expanding Knowledge in the Information and Computing Sciences
HERDC Research category E1.1 Full written paper - refereed
Copyright notice ©199, SPIE
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044552

Document type: Conference Paper
Collections: School of Information Technology
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