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Image Retrieval Based on Objects’ Spatial Orientation Relationships
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作者 CHENChuan-bo LIQi-shen GONGWen-jie 《Wuhan University Journal of Natural Sciences》 EI CAS 2005年第3期520-524,共5页
A new concept of characteristic scanning radial (CSR) is proposed for thesegmented image on the basis of two shape-specific points of its shape-objects. Subsequently, twocharacteristic attribute sequences (CAS) of rel... A new concept of characteristic scanning radial (CSR) is proposed for thesegmented image on the basis of two shape-specific points of its shape-objects. Subsequently, twocharacteristic attribute sequences (CAS) of relative distance and relative direction are derived torepresent the spatial orientation relationships among objects of the image. A novel image retrievalalgorithm is presented using these two CASs. The proposed retrieval approach not only satisfies thetransformational invariance, butalso attains the quantitative comparison of matching. Experimentsidentify the effectiveness and efficiency of the algorithm adequately. 展开更多
关键词 image retrieval spatial relationship transformation invariant shape-specific point characteristic scanning radial characteristic attribute sequence
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