Content-Based Superpixel Segmentation and Matching Using Its Region Feature Descriptors

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  • ZHANG Jianmei
    School of Information Science & Engineering, East China University of Science and Technology
  • WANG Pengyu
    School of Information Science & Engineering, East China University of Science and Technology
  • GONG Feiyang
    School of Information Science & Engineering, East China University of Science and Technology
  • ZHU Hongqing
    School of Information Science & Engineering, East China University of Science and Technology
  • CHEN Ning
    School of Information Science & Engineering, East China University of Science and Technology

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<p>Finding the correspondence between two images of the same object or scene is an active research field in computer vision. This paper develops a rapid and effective Content-based Superpixel Image matching and Stitching (CSIS) scheme, which utilizes the content of superpixel through multi-features fusion technique. Unlike popular keypoint-based matching method, our approach proposes a superpixel internal feature-based scheme to implement image matching. In the beginning, we make use of a novel superpixel generation algorithm based on content-based feature representation, named Content-based Superpixel Segmentation (CSS) algorithm. Superpixels are generated in terms of a new distance metric using color, spatial, and gradient feature information. It is developed to balance the compactness and the boundary adherence of resulted superpixels. Then, we calculate the entropy of each superpixel for separating some superpixels with significant characteristics. Next, for each selected superpixel, its multi-features descriptor is generated by extracting and fusing local features of the selected superpixel itself. Finally, we compare the matching features of candidate superpixels and their own neighborhoods to estimate the correspondence between two images. We evaluated superpixel matching and image stitching on complex and deformable surfaces using our superpixel region descriptors, and the results show that new method is effective in matching accuracy and execution speed.</p>

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