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Sparse Coding Based Superpixel Representation Using Hierarchical Codebook Constructing And Indexing
Sparse Coding Based Superpixel Representation Using Hierarchical Codebook Constructing And Indexing
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机译:基于稀疏编码的超像素表示的分层码本构造和索引
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摘要
Embodiments of the present invention include systems and methods for identifying an object in an image. In embodiments, object identification includes using smooth encoding from a tree structure to generate a feature from a descriptor. In embodiments, the smooth encoding may be performed by, having identifying a leaf node for a descriptor, moving up the tree voting structure a number of levels from the identified leaf node to a branch node to identify leaf nodes dependent from the branch node; and then, by determining a sparse code under a condition that a distance between the descriptor and centroids of the leaf nodes dependent from the branch node weighted by the sparse code is minimized, wherein each element of the sparse code representing a weight corresponding to leaf nodes.
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