文章基本信息

标题：Variation of SIFT Descriptor for Affine Invariant Object Matching
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作者：Yen Do ; Soo Hyung Kim ; Sang Cheol Park 等
期刊名称：International Journal of Software Engineering and Its Applications
印刷版ISSN：1738-9984
出版年度：2013
卷号：7
期号：5
页码：297-308
出版社：SERSC
摘要：In this paper, a novel affine invariant descriptor for object matching is proposed. The advantage of Maximally Stable Extremal Regions (MSER) method is applied to get the most stable regions in the image. Inside each region, we pick the seeds as keypoints since MSER regions are invariant to affine transformation. Besides that, Voronoi diagram is employed to split the image into small Voronoi cells or local regions based on the key points picked in the previous step. Finally, local features inside each local region including color, texture and geometric properties are extracted to generate the descriptor. Our experiments demonstrate that the proposed affine invariant local descriptor based on Voronoi tessellation is more stable and robust to object matching than SIFT descriptor while using the same keypoints.
关键词：Affine invariant descriptor; Voronoi tessellation; Object matching