CASIA OpenIR  > 模式识别国家重点实验室  > 图像与视频分析
Finding logos in real-world images with point-context representation-based region search
Wang, Jinqiao; Fu, Jianlong; Lu, Hanqing
Source PublicationMULTIMEDIA SYSTEMS
2015-06-01
Volume21Issue:3Pages:301-311
SubtypeArticle
AbstractFinding logos in the real-world images is a challenging task due to their small size, simple shape, less texture and clutter background. In this paper, through visual logo analysis with different types of features, we propose a novel framework for finding visual logos in the real-world images. First, we exploit the contextual shape and patch information around feature points, merge them into a combined feature representation (point-context). Considering the characteristics of logos, this kind of fusion is an effective enhancement for the discriminability of single point features. Second, to eliminate the interference of the complex and noisy background, we transfer the logo recognition to a region-to-image search problem by segmenting real-world images into region trees. A weak geometric constraint based on regions is encoded into an inverted file structure to accelerate the search process. Third, we apply global features to refine initial results in the re-ranking stage. Finally, we combine each region score both in max-response and accumulate-response mode to obtain the final results. Performances of the proposed approach are evaluated on both our CASIA-LOGO dataset and the standard Flickr logos 27 dataset. Experiments and comparisons show that our approach is superior to the state-of-the-art approaches.
KeywordLogo Recognition Point-context Region Search
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS Research AreaComputer Science
WOS SubjectComputer Science, Information Systems ; Computer Science, Theory & Methods
WOS IDWOS:000355813200007
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/7928
Collection模式识别国家重点实验室_图像与视频分析
Corresponding AuthorWang, Jinqiao
AffiliationChinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jinqiao,Fu, Jianlong,Lu, Hanqing. Finding logos in real-world images with point-context representation-based region search[J]. MULTIMEDIA SYSTEMS,2015,21(3):301-311.
APA Wang, Jinqiao,Fu, Jianlong,&Lu, Hanqing.(2015).Finding logos in real-world images with point-context representation-based region search.MULTIMEDIA SYSTEMS,21(3),301-311.
MLA Wang, Jinqiao,et al."Finding logos in real-world images with point-context representation-based region search".MULTIMEDIA SYSTEMS 21.3(2015):301-311.
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