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Image Extraction by Wide Angle Foveated Lens for Overt-Attention

Shimizu, Sota and Jiang, Hao and Burdick, Joel W. (2006) Image Extraction by Wide Angle Foveated Lens for Overt-Attention. In: Proceedings 2006 IEEE International Conference on Robotics and Automation. IEEE , Piscataway, N.J., pp. 3437-3442. ISBN 0-7803-9505-0.

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This paper defines Wide Angle Foveated (WAF) imaging. A proposed model combines Cartesian coordinate system, a log-polar coordinate system, and a unique camera model composed of planar projection and spherical projection for all-purpose use of a single imaging device. The central field-of-view (FOV) and intermediate FOV are given translation-invariance and, rotation and scale-invariance for pattern recognition, respectively. Further, the peripheral FOV is more useful for camera’s view direction control, because its image height is linear to an incident angle to the camera model’s optical center point. Thus, this imaging model improves its usability especially when a camera is dynamically moved, that is, overt-attention. Moreover, simulation results of image extraction show advantages of the proposed model, in view of its magnification factor of the central FOV, accuracy of scale-invariance and flexibility to describe other WAF vision sensors.

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Additional Information:© 2006 IEEE. Issue Date: 15-19 May 2006, Date of Current Version: 26 June 2006. The authors thank to Fabio Berton and Giulio Sandini, a researcher and a professor in the LIRA lab. group, University of Genova, Italy, for their assistance. Sota Shimizu was partially supported by a grant from Japan Society for the Promotion of Science, and Wind & Biomass Energy R&D and Information Center.
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Japan Society for the Promotion of Science (JSPS)UNSPECIFIED
Wind and Biomass Energy R&D and Information CenterUNSPECIFIED
Subject Keywords:Wide Angle Foveated lens; log-polar mapping; overt-attention; advanced WAF imaging; rotation and scale-invariance
Record Number:CaltechAUTHORS:20110216-132811871
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Official Citation:Sota Shimizu; Hao Jiang; Burdick, J.W.; , "Image extraction by wide angle foveated lens for overt-attention," Robotics and Automation, 2006. ICRA 2006. Proceedings 2006 IEEE International Conference on , vol., no., pp.3437-3442, 15-19 May 2006 doi: 10.1109/ROBOT.2006.1642227 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22248
Deposited By: Benjamin Perez
Deposited On:16 Feb 2011 22:03
Last Modified:09 Nov 2021 16:04

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