Invention Grant
- Patent Title: Method and apparatus of de-interlacing video
- Patent Title (中): 去隔行视频的方法和装置
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Application No.: US12129891Application Date: 2008-05-30
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Publication No.: US08165211B2Publication Date: 2012-04-24
- Inventor: King Ngi Ngan , Jie Dong , Yan Huo
- Applicant: King Ngi Ngan , Jie Dong , Yan Huo
- Applicant Address: CN Hong Kong Science Park, Shatin, New Territories, Hong Kong
- Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
- Current Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
- Current Assignee Address: CN Hong Kong Science Park, Shatin, New Territories, Hong Kong
- Agency: Ella Cheong Hong Kong
- Agent Margaret A. Burke; Sam T. Yip
- Main IPC: H04N7/12
- IPC: H04N7/12

Abstract:
The presently claimed invention adaptively selects a local de-interlacing method according to information from a compressed video bitstream. According to one embodiment, successive images from a video bitstream are first reconstructed. Syntax elements, selected from a macroblock type, a macroblock partition, a motion vector, a distance from a reference frame, the existence of non-zero transform coefficients and the distribution of transform coefficients, are then extracted from this bitstream. Based on the syntax elements, a de-interlacing algorithm is decided from an algorithm set for each image region in a video frame. Algorithms in the algorithm set include motion compensation, edge-based line averaging, and line averaging. Each image region is thereby interpolated using the de-interlacing algorithm and complementary motion compensation. The complementary motion compensation de-interlaces the image region using an inverse of motion vectors extracted from a bitstream clip representing neighboring frames.
Public/Granted literature
- US20090296815A1 METHOD AND APPARATUS OF DE-INTERLACING VIDEO Public/Granted day:2009-12-03
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