DocumentCode :
31695
Title :
A 1.59 Gpixel/s Motion Estimation Processor With - 211 to +211 Search Range for UHDTV Video Encoder
Author :
Dajiang Zhou ; Jinjia Zhou ; Gang He ; Goto, Satoshi
Author_Institution :
Grad. Sch. of Inf., Waseda Univ., Kitakyushu, Japan
Volume :
49
Issue :
4
fYear :
2014
fDate :
Apr-14
Firstpage :
827
Lastpage :
837
Abstract :
3840 × 2160 and 7680 × 4320 UHDTV formats deliver remarkably enhanced visual experience relative to high definition but in the meanwhile involve huge complexity and memory bandwidth requirements in video encoding. Especially, enlarged motion distances of UHDTV lead to additional difficulties in the implementation of motion estimation, which is originally the most critical bottleneck of an encoder. This paper presents a motion estimation processor design for H.264/AVC. A test chip is implemented in 40 nm CMOS. With algorithm and architecture co-optimization, the processor delivers a maximum throughput of 1.59 Gpixel/s for 7680 × 4320 48 fps video, at least 7.5 times faster than previous designs. The corresponding core power dissipation is 622 mW at 210 MHz, with energy efficiency improved by at least 23%. The chip´s DRAM bandwidth requirement is also 68% lower than previous chips. With a maximum search range of ±211 (horizontal) by ±106 (vertical) around a predictive search center, the proposed motion estimation processor well accommodates the high motion of UHDTV.
Keywords :
CMOS integrated circuits; DRAM chips; high definition television; integrated circuit testing; motion estimation; radiofrequency integrated circuits; video coding; CMOS technology; H.264-AVC; UHDTV video encoder; chip DRAM bandwidth requirement; cooptimization; frequency 210 MHz; memory bandwidth requirement; motion distance enlargement; motion estimation processor design; power 622 mW; predictive search center; size 40 nm; Clocks; Computer architecture; Encoding; Loading; Motion estimation; Schedules; Vectors; ASIC; H264/AVC; SHV; UHDTV; VLSI; motion estimation; super hi-vision; ultra high definition television; video encoder;
fLanguage :
English
Journal_Title :
Solid-State Circuits, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9200
Type :
jour
DOI :
10.1109/JSSC.2013.2293136
Filename :
6687281
Link To Document :
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