Novel histogram descriptor for global feature extraction and description

来源期刊：中南大学学报(英文版)2010年第3期

论文作者：张刚 马宗民 邓立国 徐长明

文章页码：580 - 586

Key words：feature extraction and description; histogram descriptor; gray histogram; edge histogram

Abstract: A novel histogram descriptor for global feature extraction and description was presented. Three elementary primitives for a 2×2 pixel grid were defined. The complex primitives were computed by matrix transforms. These primitives and equivalence class were used for an image to compute the feature image that consisted of three elementary primitives. Histogram was used for the transformed image to extract and describe the features. Furthermore, comparisons were made among the novel histogram descriptor, the gray histogram and the edge histogram with regard to feature vector dimension and retrieval performance. The experimental results show that the novel histogram can not only reduce the effect of noise and illumination change, but also compute the feature vector of lower dimension. Furthermore, the system using the novel histogram has better retrieval performance.

基金信息：the National Natural Science Foundation of China
the Fundamental Research Funds for the Central Universities
Program for New Century Excellent Talents in University