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Dual local consistency hashing with discriminative projections selection

文献类型：期刊论文

作者Li, Peng; Cheng, Jian; Lu, Hanqing
刊名SIGNAL PROCESSING
出版日期2013-08-01
卷号93期号:8页码:2256-2264
关键词Image search Hashing Dual local consistency PCA Discriminative projection selection
英文摘要Semantic hashing is a promising way to accelerate similarity search, which designs compact binary codes for a large number of images so that semantically similar images are mapped to close codes. Retrieving similar neighbors is then simply accomplished by retrieving images that have codes within a small Hamming distance of the code of the query. However, most of the existing hashing approaches, such as spectral hashing (SH), learn the binary codes by preserving the global similarity, which do not have full discriminative power. In this paper, we propose a dual local consistency hashing method which not only makes the similar images have the same codes but also dissimilar images with different codes. Moreover, we propose a PCA projection selecting scheme that choose the most discriminative projection for each bit of the codes. Therefore, the binary codes learned by our approach are more powerful and discriminative for similarity search. Extensive experiments are conducted on publicly available datasets and the comparison results demonstrate that our approach can outperform the state-of-art methods. (C) 2012 Elsevier B.V. All rights reserved.
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Electrical & Electronic
研究领域[WOS]Engineering
关键词[WOS]APPROXIMATE NEAREST-NEIGHBOR ; ALGORITHM ; DIMENSIONS ; IMAGES
收录类别SCI
语种英语
WOS记录号WOS:000318581900015
源URL[http://ir.ia.ac.cn/handle/173211/3377]  
专题自动化研究所_模式识别国家重点实验室_图像与视频分析团队
作者单位Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Li, Peng,Cheng, Jian,Lu, Hanqing. Dual local consistency hashing with discriminative projections selection[J]. SIGNAL PROCESSING,2013,93(8):2256-2264.
APA Li, Peng,Cheng, Jian,&Lu, Hanqing.(2013).Dual local consistency hashing with discriminative projections selection.SIGNAL PROCESSING,93(8),2256-2264.
MLA Li, Peng,et al."Dual local consistency hashing with discriminative projections selection".SIGNAL PROCESSING 93.8(2013):2256-2264.

入库方式： OAI收割

来源：自动化研究所

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