A modification of the fusion model for log polar coordinatesThe 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 detection range to a neighborhood spanned by the directional edge detection filters. This transformation was essentially accomplished by a nonuniform resampling of the original image in a horizontal direction. While this is easily implemented for digital processing, the approach does not (in the peripheral vision area) model the log-conformal mapping which is known to occur in the human mechanism. This paper therefore modifies the original fusion concept in the peripheral area to include the polar exponential grid-to-log conformal tesselation. Examples of the fusion process resulting in accurate disparity values are given.
Document ID
19910034886
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Griswold, N. C. (Texas A & M University College Station, United States)
Weiman, Carl F. R. (Transitions Research Corp. Danbury, CT, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
Cybernetics
Meeting Information
Meeting: Intelligent Robots and Computer Vision VIII: Algorithms and Techniques