CASIA OpenIR  > 智能感知与计算研究中心
Hierarchical feature coding for image classification
Liu, Jingyu; Huang, Yongzhen; Wang, Liang; Wu, Shu
Source PublicationNEUROCOMPUTING
2014-11-20
Volume144Issue:144Pages:509-515
SubtypeArticle
AbstractFeature coding and pooling are two critical stages in the widely used Bag-of-Features (BOF) framework in image classification. After coding, each local feature formulates its representation by the visual codewords. However, the two-dimensional feature-code layout is transformed to a one-dimensional codeword representation after pooling. The property for each local feature is ignored and the whole representation is tightly coupled. To resolve this problem, we propose a hierarchical feature coding approach which regards each feature-code representation as a high level feature. Codeword learning, coding and pooling are also applied to these new features, and thus a high level representation of the image is obtained. Experiments on different datasets validate our analysis and demonstrate that the new representation is more discriminative than that in the previous BOF framework. Moreover, we show that various kinds of traditional feature coding algorithms can be easily embedded into our framework to achieve better performance. (C) 2014 Elsevier B.V. All rights reserved.
KeywordImage Classification Hierarchical Encoding Higher Level Representation
WOS HeadingsScience & Technology ; Technology
WOS KeywordSEARCH
Indexed BySCI
Language英语
WOS Research AreaComputer Science
WOS SubjectComputer Science, Artificial Intelligence
WOS IDWOS:000341677800047
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Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/3809
Collection智能感知与计算研究中心
Corresponding AuthorLiu, Jingyu
AffiliationChinese Acad Sci CASIA, Natl Lab Pattern Recognit, Inst Automat, Beijing 100190, Peoples R China
First Author AffilicationChinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China
Corresponding Author AffilicationChinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Liu, Jingyu,Huang, Yongzhen,Wang, Liang,et al. Hierarchical feature coding for image classification[J]. NEUROCOMPUTING,2014,144(144):509-515.
APA Liu, Jingyu,Huang, Yongzhen,Wang, Liang,&Wu, Shu.(2014).Hierarchical feature coding for image classification.NEUROCOMPUTING,144(144),509-515.
MLA Liu, Jingyu,et al."Hierarchical feature coding for image classification".NEUROCOMPUTING 144.144(2014):509-515.
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