A Robust Method for TV Logo Tracking in Video Streams
Jinqiao Wang; Lingyu Duan; Zhenglong Li; Jing Liu; Hanqing Lu; Jesse S. Jin
2006
会议名称IEEE International Conference on Multimedia and Expo
会议录名称Proceedings of the 2007 IEEE International Conference on Multimedia and Expo
会议日期July 9-12, 2007
会议地点Toronto, Ontario, Canada
摘要Most broadcast stations rely on TV logos to claim video content ownership or visually distinguish the broadcast from the interrupting commercial block. Detecting and tracking a TV logo is of interest to TV commercial skipping applications and logo-based broadcasting surveillance (abnormal signal is accompanied by logo absence). Pixel-wise difference computing within predetermined logo regions cannot address semi-transparent TV logos well for the blending effects of a logo itself and inconstant background images. Edge-based template matching is weak for semi-transparent ones when incomplete edges appear. In this paper we present a more robust approach to detect and track TV logos in video streams on the basis of multispectral images gradient. Instead of single frame based detection, our approach makes use of the temporal correlation of multiple consecutive frames. Since it is difficult to manually delineate logos of irregular shape, an adaptive threshold is applied to the gradient image in subpixel space to extract the logo mask. TV logo tracking is finally carried out by matching the masked region with a known template. An extensive comparison experiment has shown our proposed algorithm outperforms traditional methods such as frame difference, single frame-based edge matching. Our experimental dataset comes from part of TRECVID2005 news corpus and several Chinese TV channels with challenging TV logos
关键词Chinese Tv Channel Tv Logo Tracking Video Streaming Logo-based Broadcasting Surveillance Edge-based Template Matching Multispectral Gradient Image Temporal Correlation Trecvid2005 News Corpus
文献类型会议论文
条目标识符http://ir.ia.ac.cn/handle/173211/13456
专题模式识别国家重点实验室_图像与视频分析
通讯作者Jinqiao Wang
推荐引用方式
GB/T 7714
Jinqiao Wang,Lingyu Duan,Zhenglong Li,et al. A Robust Method for TV Logo Tracking in Video Streams[C],2006.
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