A new discriminative coding method for image classification
Yang, Xiaoshan1,2; Zhang, Tianzhu1,2; Xu, Changsheng1,2; Xu CS(徐常胜)
2015-03-01
发表期刊MULTIMEDIA SYSTEMS
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:2[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
专题模式识别国家重点实验室_多媒体计算与图形学
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
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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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