CSPS: An Adaptive Pooling Method for Image Classification

doi:10.1109/TMM.2016.2544099

CORC > 北京大学 > 信息科学技术学院

	CSPS: An Adaptive Pooling Method for Image Classification
	Wang, Jinzhuo ; Wang, Wenmin ; Wang, Ronggang ; Gao, Wen
刊名	IEEE TRANSACTIONS ON MULTIMEDIA
	2016
关键词	Class-specific pooling shapes (CSPS) dictionary sensitivity image classification multi-shape matching kernel representation compression SPATIAL PYRAMIDS FEATURES REPRESENTATION SCENES
DOI	10.1109/TMM.2016.2544099
英文摘要	This paper proposes an adaptive approach to learn class-specific pooling shapes (CSPS) for image classification. Prevalent methods for spatial pooling are often conducted on predefined grids of images, which is an ad-hoc method and, thus, lacks generalization power across different categories. In contrast, our CSPS is designed in a data-driven fashion by generating plenty of candidates and selecting the optimal subset for each class. Specifically, we establish an overcomplete spatial shape set that preserves as many geometric patterns as possible. Then, the class-specific subset is selected by training a linear classifier with structured sparsity constraints and color distribution cues. To address the high computational cost and the risk of overfitting due to the overcomplete scheme, the image representations for CSPS are first compressed according to dictionary sensitivity and shape importance. These representations are finally fed to SVMs for the classification task. We demonstrate that CSPS can learn compact yet discriminative geometric information for different classes that carries more semantic meaning than other methods. Experimental results on four datasets demonstrate the benefits of the proposed method compared with other pooling schemes and illustrate its effectiveness on both object and scene images.; ShenZhen Peacock Plan; SCI(E); EI; ARTICLE; cr7or9@163.com; wangwm@ece.pku.edu.cn; rgwang@pkusz.edu.cn; wgao@pku.edu.cn; 6; 1000-1010; 18
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437207]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Wang, Jinzhuo,Wang, Wenmin,Wang, Ronggang,et al. CSPS: An Adaptive Pooling Method for Image Classification[J]. IEEE TRANSACTIONS ON MULTIMEDIA,2016.
APA	Wang, Jinzhuo,Wang, Wenmin,Wang, Ronggang,&Gao, Wen.(2016).CSPS: An Adaptive Pooling Method for Image Classification.IEEE TRANSACTIONS ON MULTIMEDIA.
MLA	Wang, Jinzhuo,et al."CSPS: An Adaptive Pooling Method for Image Classification".IEEE TRANSACTIONS ON MULTIMEDIA (2016).