A new discriminative coding method for image classification

	A new discriminative coding method for image classification
	Yang, Xiaoshan1,2 ; Zhang, Tianzhu1,2 ; Xu, Changsheng1,2 ; Xu CS(徐常胜)
发表期刊	MULTIMEDIA SYSTEMS
	2015-03-01
卷号	21 期号:2 页码:133-145
文章类型	Article
摘要	The bag-of-words (BOW) based methods are widely used in image classification. However, huge number of visual information is omitted inevitably in the quantization step of the BOW. Recently, NBNN and its improved methods like Local NBNN were proposed to solve this problem. Nevertheless, these methods do not perform better than the state-of-the-art BOW based methods. In this paper, based on the advantages of BOW and Local NBNN, we introduce a novel locality discriminative coding (LDC) method. We convert each low level local feature, such as SIFT, into code vector using the Local Feature-to-Class distance other than by k-means quantization. After coding, sum-pooling combined with SPM is used to construct a single feature representation vector for each image. Extensive experimental results on several challenging benchmark datasets show that our LDC method outperforms six state-of-the-art image classification methods.
关键词	Bag-of-words Feature Coding Discriminative Image Classification
WOS标题词	Science & Technology ; Technology
关键词[WOS]	ANNOTATION ; FEATURES
收录类别	SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Information Systems ; Computer Science, Theory & Methods
WOS记录号	WOS:000350213300002
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/173211/8084
专题	多模态人工智能系统全国重点实验室_多媒体计算
通讯作者	Xu CS(徐常胜)
作者单位	1.National Lab of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences 2.China Singapore Inst Digital Media, Singapore 139951, Singapore
第一作者单位	中国科学院自动化研究所
推荐引用方式 GB/T 7714	Yang, Xiaoshan,Zhang, Tianzhu,Xu, Changsheng,et al. A new discriminative coding method for image classification[J]. MULTIMEDIA SYSTEMS,2015,21(2):133-145.
APA	Yang, Xiaoshan,Zhang, Tianzhu,Xu, Changsheng,&徐常胜.(2015).A new discriminative coding method for image classification.MULTIMEDIA SYSTEMS,21(2),133-145.
MLA	Yang, Xiaoshan,et al."A new discriminative coding method for image classification".MULTIMEDIA SYSTEMS 21.2(2015):133-145.

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