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Color based compact hierarchical image representation
ZHU Jie, WU Shufang, XIE Bojun, MA Liyan
Journal of Computer Applications    2017, 37 (11): 3238-3243.   DOI: 10.11772/j.issn.1001-9081.2017.11.3238
Abstract398)      PDF (1047KB)(417)       Save
The spatial pyramid matching method provides the spatial information by splitting an image into different cells. However, spatial pyramid matching can not match different parts of the objects well. A hierarchical image representation method based on Color Level (CL) was proposed. The class-specific discriminative colors of different levels were obtained from the viewpoint of feature fusion in CL algorithm, and then an image was iteratively split into different levels based on these discriminative colors. Finally, image representation was constructed by concatenating the histograms of different levels. To reduce the dimensionality of image representation, the Divisive Information-Theoretic feature Clustering (DITC) method was used to cluster the dictionary, and the generated compact dictionary was used for final image representation. Classification results on Soccer, Flower 17 and Flower 102 datasets, demonstrate that the proposed method can obtain satisfactory results in these datasets.
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