Dual local consistency hashing with discriminative projections selection

doi:10.1016/j.sigpro.2012.05.035

	Dual local consistency hashing with discriminative projections selection
	Li, Peng; Cheng, Jian; Lu, Hanqing
发表期刊	SIGNAL PROCESSING
	2013-08-01
卷号	93 期号:8 页码:2256-2264
文章类型	Article
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.
关键词	Image Search Hashing Dual Local Consistency Pca Discriminative Projection Selection
WOS标题词	Science & Technology ; Technology
DOI	10.1016/j.sigpro.2012.05.035
关键词[WOS]	APPROXIMATE NEAREST-NEIGHBOR ; ALGORITHM ; DIMENSIONS ; IMAGES
收录类别	SCI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:000318581900015
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/3377
专题	紫东太初大模型研究中心_图像与视频分析
作者单位	Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China
第一作者单位	模式识别国家重点实验室
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.