Hierarchical Organization by And-Or Tree
Oxford University Press eBooks(2014)
摘要
A natural scene is composed of many components. See the example of the scene of beach in Figure 2. When we look at this image, our visual systems process a series of tasks in order to understand the whole scene. These tasks include to decompose the whole scene into parts, group them to form larger and larger parts, and organize discovered parts in a certain way. It has been a fundamental problem in computer vision to mimic these procedures by machine vision systems. However, this is a very challenging task due to the huge complexity arisen from an enormous number of distinct scene configurations, which are composed of a variety of objects and regions of varying shapes in different layouts. In this chapter we will introduce a general model for scene or object categories that can represent varying configurations effectively. The desired proper-
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hierarchical organization
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