Superpixel Segmentation Based on Grid Point Density Peak Clustering

被引:3
|
作者
Chen, Xianyi [1 ]
Peng, Xiafu [1 ]
Wang, Sun'an [2 ]
机构
[1] Xiamen Univ, Dept Automat, Xiamen 361005, Peoples R China
[2] Xi An Jiao Tong Univ, Sch Mech Engn, Xian 710049, Peoples R China
关键词
superpixel segmentation; density clustering; image preprocessing; computer vision;
D O I
10.3390/s21196374
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Superpixel segmentation is one of the key image preprocessing steps in object recognition and detection methods. However, the over-segmentation in the smoothly connected homogenous region in an image is the key problem. That would produce redundant complex jagged textures. In this paper, the density peak clustering will be used to reduce the redundant superpixels and highlight the primary textures and contours of the salient objects. Firstly, the grid pixels are extracted as feature points, and the density of each feature point will be defined. Secondly, the cluster centers are extracted with the density peaks. Finally, all the feature points will be clustered by the density peaks. The pixel blocks, which are obtained by the above steps, are superpixels. The method is carried out in the BSDS500 dataset, and the experimental results show that the Boundary Recall (BR) and Achievement Segmentation Accuracy (ASA) are 95.0% and 96.3%, respectively. In addition, the proposed method has better performance in efficiency (30 fps). The comparison experiments show that not only do the superpixel boundaries have good adhesion to the primary textures and contours of the salient objects, but they can also effectively reduce the redundant superpixels in the homogeneous region.
引用
收藏
页数:15
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