Detection of Blotch and Scratch in Video Based on Video Decomposition

作者：Li Houqiang^*; Lu Zhenbo; Wang Zhangyang; Ling Qing; Li Weiping

来源：IEEE Transactions on Circuits and Systems for Video Technology, 2013, 23(11): 1887-1900.

DOI：10.1109/TCSVT.2013.2269016

• Blotch and scratch detection
• convex optimization
• digitized film restoration
• video processing

In old video restoration, automatic detection of common defects, e.g., scratches and blotches, has always been emphasized. While prior thoughts mainly focus on detecting blotches and linear, vertical scratches separately, this paper contributes to a more generalized and challenging issue: simultaneous detection of blotches and complex scratches in video, with much less knowledge of them. We investigate the characteristics of blotches and scratches in space and time domain, and propose a novel detection method based on two main steps: cartoon-texture decomposition in the space domain and content-defect separation in the time domain. We then formulate it into convex optimization problems and develop corresponding algorithms. The experiment results demonstrate that the proposed method is of high detection accuracy, verifying the effectiveness of our detection via a video decomposition method.

• 出版日期2013-11
• 单位中国科学技术大学