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http://dx.doi.org/10.6109/jkiice.2010.14.9.2091

Compression Method for Digital Hologram using Motion Prediction Method in Frequency-domain  

Choi, Hyun-Jun (안양대학교 정보통신공학과)
Bae, Yun-Jin (광운대학교 실감미디어 연구소)
Seo, Young-Ho (광운대학교 실감미디어 연구소)
Kang, Chang-Soo (유한대학 전자정보과)
Kim, Dong-Wook (광운대학교 실감미디어 연구소)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.14, no.9, 2010 , pp. 2091-2098 More about this Journal
Abstract
This paper proposes a hologram data compression scheme that uses the existing image/video compression techniques, in which the existing techniques are modified appropriately to fit to the characteristics of hologram. In this paper we use CGH as the hologram data. The proposed scheme uses the generation characteristics of a CGH to consist of a pre-processing, spatial segmentation of a CGH, frequency-transformation with 2D-DCT (2-dimensional discrete cosine transform), and motion estimation and residual image generation in the frequency-domain. It uses H.264/AVC, the lossless compressor BinHex, and a linear quantizer that we have made. From the experiments the proposed scheme showed the image quality of about 25.4 dB at the compression ratio of 10:1 and about 16.5dB at 90:1 compression ratio.
Keywords
digital hologram; computer-generated hologram(CGH); lossy/lossless coding; compression; DCT; ME/MC;
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