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	PKU-IDM @ TRECVID 2011 CBCD: Content-based copy detection with cascade of multimodal features and temporal pyramid matching
	Jiang, Menglin ; Fang, Shu ; Tian, Yonghong ; Huang, Tiejun ; Gao, Wen
	2011
英文摘要	Content-based copy detection (CBCD) is drawing increasing attention from both academia and industry as an alternative technology to watermarking for video identification and copyright protection. In this paper, we present a comprehensive method for detecting copies subjected to complicated transformations in a large video corpus. Basically, two core techniques are employed by our method. One is multimodal feature representation organized in a cascade architecture, which exploits the complementary characteristics of audio features, global and local visual features to keep robust to a wide range of transformations and meanwhile preserves efficiency as far as possible. The other is Temporal Pyramid Matching (TPM), which fuses frame-level similarity search results into sequence-level matching results. We have submitted two runs, i.e. 'PKU-IDM.m.balanced.cascade' & 'PKU-IDM.m.nofa.cascade'. Official results demonstrate that the proposed approach achieved excellent NDCR and competitive Mean F1 at the cost of median Processing Time.; EI; 0
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/329491]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Jiang, Menglin,Fang, Shu,Tian, Yonghong,et al. PKU-IDM @ TRECVID 2011 CBCD: Content-based copy detection with cascade of multimodal features and temporal pyramid matching. 2011-01-01.

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