초록 ▼

A method and apparatus is provided to determine affine disparity and affine invariant pattern distance from two image patterns. The method formulates the problem of determining affine disparity and affine invariant distances between two image patterns as one of finding an affine transform for an adj

A method and apparatus is provided to determine affine disparity and affine invariant pattern distance from two image patterns. The method formulates the problem of determining affine disparity and affine invariant distances between two image patterns as one of finding an affine transform for an adjustable hypercolumn (HC) reference frame that maximally compensates the affine difference of the two image patterns. The image HC-coding and the difference vector is computed from two image patterns using specific orientation (SO) simple cell receptive fields employed in an HC-reference system. The Lie derivative of the difference vector is computed from image patterns using Lie germs. In accordance with one aspect of the invention, the affine transform that maximally compensates the affine difference between two image patterns is found by a gradient system wherein the gradient is calculated from the difference vector and its Lie derivatives. A closed loop adaptive HC-reference frame network is provided toextract binocular affine disparity using an energy minimization technique in a manner which permits for coincidental binocular fusion of the images in the HC-coding and determination of affine invariant pattern distance in general.

대표청구항 ▼

[ What is claimed is:] [1.] An artificial neural system for determining stereoscopic image affine disparity, and affine invariant distances of first and second images obtained from coupled imaging sensory device comprising:a) adjustable HC-linear functional means for receiving intensity signals of s

[ What is claimed is:] [1.] An artificial neural system for determining stereoscopic image affine disparity, and affine invariant distances of first and second images obtained from coupled imaging sensory device comprising:a) adjustable HC-linear functional means for receiving intensity signals of said first and second images and providing first-view HC-representation signals and second-view HC-representation signals, and Lie derivative signals of at least one of said first- and second-views;b) state vector increment means coupled to adjustable HC-linear functional means for receiving HC-representation signals and Lie derivative signals and providing state vector increment signals;c) HC-pattern distance means coupled to adjustable HC-linear functional means for receiving HC-representation signals of first- and second-views and providing HC-pattern distance signal of said two images;d) feedback circuit coupled to said state vector increment means for receiving state vector increment signals and providing adjusting signal.