关键词: 位置敏感哈希；图像检索；图像特征向量

Abstract:

The paper summarizes the research status of image retrieval based on the visual analysis tools, and an image retrieval system is implemented based on Locality Sensitive Hashing. Image feature vectors are mapped to hash bucket by LSH method, thereby, the method effectively reducing the computational complexity and improves the efficiency of the image retrieval. Experimental results show that, the method in the paper are both obtain better performance on retrieval efficiency and recall - precision of two measures.

Key words: locality sensitive hashing；image retrieval；image feature vector