| Presentation | 1998/10/15 A 0.6μm CMOS 16-Pixcel × 16-Line Absolute Difference Accumulator LSI T. Ohsawa, Y. Nakamura, Y. Sasajima, T. Enomoto, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Power reduction technique for CMOS absolute difference accumulator array LSI for motion estimation has been studied. Power dissipation of CMOS LSIs was reduced to about 1/8 using"snapping-off"algorithm which can reduce the amount of computation of full-search algorithm by a factor of 1/2. A small absolute difference circuit was developed resulting in reduction of both power and silicon area by factors of about 1/2 and 9/10, respectively. Two different types of absolute difference accumulator array incorporating the"snapping-off"algorithm were designed. One is Wallace's tree type and another is a binary tree type. Hardware size and power dissipation of the binary tree type are 52,300 gates and 496 mW, respectively. These of Wallace's tree type are 47,600 gates and 461 mW, respectively, and are about 9/10 those of the binary tree type. A test chip to examine characteristics for both type array was fabricated using 0.6μm CMOS technology. Experimental results agreed well to simulation results. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | motion picture compression / MPEG / power dissipation / motion estimation / "snapping-off"algorithm / mean absolute difference |
| Paper # | DSP98-90,ICD98-177,CPSY98-92 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 1998/10/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A 0.6μm CMOS 16-Pixcel × 16-Line Absolute Difference Accumulator LSI |
| Sub Title (in English) | |
| Keyword(1) | motion picture compression |
| Keyword(2) | MPEG |
| Keyword(3) | power dissipation |
| Keyword(4) | motion estimation |
| Keyword(5) | "snapping-off"algorithm |
| Keyword(6) | mean absolute difference |
| 1st Author's Name | T. Ohsawa |
| 1st Author's Affiliation | Information & System Engineering Course Graduate School of Science & Engineering Chuo University() |
| 2nd Author's Name | Y. Nakamura |
| 2nd Author's Affiliation | Information & System Engineering Course Graduate School of Science & Engineering Chuo University |
| 3rd Author's Name | Y. Sasajima |
| 3rd Author's Affiliation | Information & System Engineering Course Graduate School of Science & Engineering Chuo University |
| 4th Author's Name | T. Enomoto |
| 4th Author's Affiliation | Information & System Engineering Course Graduate School of Science & Engineering Chuo University |
| Date | 1998/10/15 |
| Paper # | DSP98-90,ICD98-177,CPSY98-92 |
| Volume (vol) | vol.98 |
| Number (no) | 320 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |