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http://dx.doi.org/10.7583/JKGS.2014.14.6.59

CUDA based Lossless Asynchronous Compression of Ultra High Definition Game Scenes using DPCM-GR  

Kim, Youngsik (Dept. of Game & Multimedia Engineering, Korea Polytechnic University)
Publication Information
Journal of Korea Game Society / v.14, no.6, 2014 , pp. 59-68 More about this Journal
Abstract
Memory bandwidth requirements of UHD (Ultra High Definition $4096{\times}2160$) game scenes have been much more increasing. This paper presents a lossless DPCM-GR based compression algorithm using CUDA for solving the memory bandwidth problem without sacrificing image quality, which is modified from DDPCM-GR [4] to support bit parallel pipelining. The memory bandwidth efficiency increases because of using the shared memory of CUDA. Various asynchronous transfer configurations which can overlap the kernel execution and data transfer between host and CUDA are implemented with the page-locked host memory. Experimental results show that the maximum 31.3 speedup is obtained according to CPU time. The maximum 30.3% decreases in the computation time among various configurations.
Keywords
CUDA; Lossless Compression; Asynchronous Transfer; DPCM-GR (Differential Pulse Code Modulation - Golomb Rice);
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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