CASIA OpenIR  > 模式识别国家重点实验室  > 图像与视频分析
Image Classification Using Spatial Pyramid Coding and Visual Word Reweighting
Chunjie Zhang; Jing Liu; Jinqiao Wang; Qi Tian; Changsheng Xu; Hanqing Lu; Songde Ma
Conference NameAsian Conference on Computer Vision
Source Publication
Conference DateNovember 8-12, 2010
Conference PlaceQueenstown, New Zealand
AbstractThe ignorance on spatial information and semantics of visual words becomes main obstacles in the bag-of-visual-words (BoW) method for image classification. To address the obstacles, we present an improved BoW representation using spatial pyramid coding (SPC) and visual word reweighting. In SPC procedure, we adopt the sparse coding technique to encode visual features with the spatial constraint. Visual features from the same spatial sub-region of images are collected to generate the visual vocabulary. Additionally, a relaxed but simple solution for semantic embedding into visual words is proposed. We relax the semantic embedding from ideal semantic correspondence to naive semantic purity of visual words, and reweight each visual word according to its semantic purity. Higher weights are given to semantically distinctive visual words, and lower weights to semantically general ones. Experiments on a public dataset demonstrate the effectiveness of the proposed method.
KeywordBag-of-visual-words (Bow) Image Classification Reweighting Spatialpyramid Coding
Indexed ByISTP
Document Type会议论文
Corresponding AuthorJing Liu
Recommended Citation
GB/T 7714
Chunjie Zhang,Jing Liu,Jinqiao Wang,et al. Image Classification Using Spatial Pyramid Coding and Visual Word Reweighting[C],2010:239-249.
Files in This Item: Download All
File Name/Size DocType Version Access License
paper 正文.pdf(385KB)会议论文 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chunjie Zhang]'s Articles
[Jing Liu]'s Articles
[Jinqiao Wang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chunjie Zhang]'s Articles
[Jing Liu]'s Articles
[Jinqiao Wang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chunjie Zhang]'s Articles
[Jing Liu]'s Articles
[Jinqiao Wang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: paper 正文.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.