Finding logos in real-world images with point-context representation-based region search
Wang, Jinqiao; Fu, Jianlong; Lu, Hanqing
2015-06-01
发表期刊MULTIMEDIA SYSTEMS
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
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/7928
专题模式识别国家重点实验室_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
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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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