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<p>Results from an ongoing project concerned with recognizing objects in complex scene domains, especially in the domain that includes the natural outdoor world, are described. Traditional machine recognition paradigms assume either that all objects of interest are definable by a relatively small number of explicit shape models or that all objects of interest have characteristic, locally measurable features. The failure of both assumptions has a dramatic impact on the form of an acceptable architecture for an object recognition system. In this work, the use of the contextual information is a central issue, and a system is explicitly designed to identify and use context as an integral part of recognition that eliminates the traditional dependence on stored geometric models and universal image partitioning algorithms. This paradigm combines the results of many simple procedures that analyze monochrome, color, stereo, or 3D range images. Interpreting the results along with relevant contextual knowledge makes it possible to achieve a reliable recognition result, even when using imperfect visual procedures. Initial experimentation with the system on ground-level outdoor imagery has demonstrated competence beyond what is attainable with other vision systems.</p>
context-based vision; object recognition; 2D imagery; complex scene domains; natural outdoor world; pattern recognition; picture processing

M. Fischler and T. Strat, "Context-Based Vision: Recognizing Objects Using Information from Both 2D and 3D Imagery," in IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 13, no. , pp. 1050-1065, 1991.
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