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An Efficient Coding Technique of Holographic Video Signal using 3D Segment Scanning  

Seo, Young-Ho (한성대학교 정보통신공학과)
Choi, Hyun-Jun (광운대학교 전자재료공학과)
Kim, Dong-Wook (광운대학교 전자재료공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.32, no.2C, 2007 , pp. 132-140 More about this Journal
Abstract
In this paper, we proposed a new technique to encode and decode the digital hologram. Since the digital hologram (or fringe pattern) is generated by interference of light, it has much different property from natural 2D (2 dimensional) images. First, we acquisite optical-sensed or computer-generated hologram by digital type, and then extract a chrominance component. The extracted digital hologram for coding is separated into segments to use multi-view properties. The segmented hologram shows the similar characteristics with picturing an object with 2D cameras in various point of view. Since fringe pattern is visually observed like as noise, we expect that the fringe pattern has poor coding efficiency. To obtain high efficiency, the segment is transformed with DCT (Discrete Cosine Transform) which resembles hologram generation process with high performance. Each transformed segment passes the 3D scanning process according to time and spatial correlation, and is organized into a video stream. Since the segment which correspond to frame of a video stream consists of the transformed coefficients with wide range of value, it is classified and re-normalized. Finally it is compressed with coding tools. The proposed algorithm illustrated that it has better properties for reconstruction of 16 times higher compression rate than the previous researches.
Keywords
digital hologram; lossy/lossless coding; compression; DCT; scanning; fringe pattern; H.264/AVC;
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Times Cited By KSCI : 1  (Citation Analysis)
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