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首页> 美国政府科技报告 >Binocular Spherical Disparity: A Study in Representation for a ForwardTranslating Camera
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Binocular Spherical Disparity: A Study in Representation for a ForwardTranslating Camera

机译：双目球差：前向翻译相机表示的研究

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摘要

The problem of interpreting optical flow and binocular disparities for a forwardtranslating camera is addressed. A solution is offered in the form of image remappings which convert the images to the analogous well understood case for a laterally translating camera. After reviewing this latter case, a binocular camera-retina imaging model utilizing spherical projection and foveal peripheral resolution is described for analyzing both binocular disparity and optical flow. The result provides the basis for analyzing both types of disparities within a single framework for the purpose of understanding how these 'orthogonal' sources of information can be exploited in a computational model. The process of image remapping, called 'normalization,' is then defined for four 1-D parameterizations of 3-D space: range, depth, looming and clearance. It is shown that normalization transforms optical flow into a form analogous to that for the laterally translating camera. In addition, it is shown how to obtain these same normalizations from standard planar projection images. A binocular wire frame scene simulator is used to experimentally verify the ideas. In addition a program for normalizing real iconic planar projection imagery is applied to several example images and the results demonstrated.

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