DocumentCode :
248438
Title :
High-throughput and low-cost hardware-oriented integer transforms for HEVC
Author :
Trang Thi Thu Do ; Yih Han Tan ; Chuohao Yeo
Author_Institution :
Inst. for Infocomm Res., Singapore, Singapore
fYear :
2014
fDate :
27-30 Oct. 2014
Firstpage :
2105
Lastpage :
2109
Abstract :
To achieve a target bit-rate reduction of 50% over H.264/AVC while maintaining equivalent perceptual video quality, High Efficiency Video Coding (HEVC) includes several new coding tools including a new set of integer transforms. Since these transforms are more complex than the H.264/AVC transforms, it is more challenging to design and develop high-performance integer transform hardware for HEVC. In this paper, we propose a series of high-throughput and low-cost hardware-oriented HEVC transform algorithms by using a butterfly structure and replacing multiplications by additions and shift operations in a way that minimizes critical computation paths. Compared to the algorithms using other methodologies like multiplierless multiple constant multiplication (MMCM) or decomposition to sparse matrices, our algorithms achieve around 20% shorter critical paths while consuming relatively small numbers of additions and shift operations. Hardware designs applying our proposed algorithms can increase their throughput by 20% while maintaining a reasonable resource consumption compared to when applying other algorithms.
Keywords :
data compression; sparse matrices; video codecs; video coding; H.264/AVC transforms; MMCM; bit rate reduction; coding tools; equivalent perceptual video quality; high efficiency video coding; high performance integer transform hardware; low cost hardware oriented HEVC transform algorithms; low cost hardware oriented integer transforms; multiplierless multiple constant multiplication; reasonable resource consumption; shift operations; sparse matrices; Algorithm design and analysis; Discrete cosine transforms; Hardware; Software algorithms; Throughput; Video coding; Critical Path Optimization; Discrete Cosine Transform (DCT); Discrete Sine Transform (DST); High Efficiency Video Coding (HEVC); Multiplierless Multiple Constant Multiplication (MMCM);
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing (ICIP), 2014 IEEE International Conference on
Conference_Location :
Paris
Type :
conf
DOI :
10.1109/ICIP.2014.7025422
Filename :
7025422
Link To Document :
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