Title :
Video repairing under variable illumination using cyclic motions
Author :
Jia, Jiaya ; Tai, Yu-Wing ; Wu, Tai-Pang ; Tang, Chi-Keung
Author_Institution :
Dept. of Comput. Sci. & Eng., Chinese Univ. of Hong Kong, China
fDate :
5/1/2006 12:00:00 AM
Abstract :
This paper presents a complete system capable of synthesizing a large number of pixels that are missing due to occlusion or damage in an uncalibrated input video. These missing pixels may correspond to the static background or cyclic motions of the captured scene. Our system employs user-assisted video layer segmentation, while the main processing in video repair is fully automatic. The input video is first decomposed into the color and illumination videos. The necessary temporal consistency is maintained by tensor voting in the spatio-temporal domain. Missing colors and illumination of the background are synthesized by applying image repairing. Finally, the occluded motions are inferred by spatio-temporal alignment of collected samples at multiple scales. We experimented on our system with some difficult examples with variable illumination, where the capturing camera can be stationary or in motion.
Keywords :
hidden feature removal; image colour analysis; image motion analysis; image restoration; image segmentation; video signal processing; color videos; cyclic motions; illumination videos; image repairing; occlusion; spatio-temporal alignment; user-assisted video layer segmentation; variable illumination; video repairing; Cameras; Computer Society; Image restoration; Image segmentation; Layout; Lighting; Pixel; Sampling methods; Tensile stress; Voting; Video restoration; applications.; illumination consistence; spatio-temporal consistence; tensor voting; Algorithms; Artificial Intelligence; Image Enhancement; Image Interpretation, Computer-Assisted; Information Storage and Retrieval; Lighting; Motion; Oscillometry; Pattern Recognition, Automated; Photography; Photometry; Subtraction Technique; Video Recording;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
DOI :
10.1109/TPAMI.2006.108