Finding logos in real-world images with point-context representation-based region search

	Finding logos in real-world images with point-context representation-based region search
	Wang, Jinqiao; Fu, Jianlong; Lu, Hanqing
发表期刊	MULTIMEDIA SYSTEMS
	2015-06-01
卷号	21 期号:3 页码:301-311
文章类型	Article
摘要	Finding 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.
关键词	Logo Recognition Point-context Region Search
WOS标题词	Science & Technology ; Technology
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:000355813200007
引用统计	被引频次：4[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/173211/7928
专题	紫东太初大模型研究中心_图像与视频分析
通讯作者	Wang, Jinqiao
作者单位	Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China
第一作者单位	模式识别国家重点实验室
通讯作者单位	模式识别国家重点实验室
推荐引用方式 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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