| Presentation | 2001/10/19 QVGA/CIF Resolution MPEG-4 Video Codec Based on A Low Power DSP Atsushi HATABU, Takashi MIYAZAKI, Ichiro KURODA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes a QVGA/CIF resolution MPEG-4 video codec based on a low-power and general-purpose DSP (uPD77210, 160MHz, 80mW). The codec software on the DSP employs many acceleration methods. The computational cost of motion estimation is reduced by optimizing execution intervals of decision to discontinue block-matching calculation in SSDA algorithm. A software DMA queue restrains the performance degradation caused by data transfer between the DSP and its external memory. Consequently, the codec operates QVGA, 15fps or CIF, 12fps encoding and decoding, and CIF, 15fps encoding in real time. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MPEG-4 / video compression / low power consumption / DSP / QVGA / CIF / motion estimation / SSDA / DMA |
| Paper # | DSP2001-115,ICD2001-120,IE2001-99 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 2001/10/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | QVGA/CIF Resolution MPEG-4 Video Codec Based on A Low Power DSP |
| Sub Title (in English) | |
| Keyword(1) | MPEG-4 |
| Keyword(2) | video compression |
| Keyword(3) | low power consumption |
| Keyword(4) | DSP |
| Keyword(5) | QVGA |
| Keyword(6) | CIF |
| Keyword(7) | motion estimation |
| Keyword(8) | SSDA |
| Keyword(9) | DMA |
| 1st Author's Name | Atsushi HATABU |
| 1st Author's Affiliation | Multimedia Research Laboratories, NEC Corporation() |
| 2nd Author's Name | Takashi MIYAZAKI |
| 2nd Author's Affiliation | Multimedia Research Laboratories, NEC Corporation |
| 3rd Author's Name | Ichiro KURODA |
| 3rd Author's Affiliation | Multimedia Research Laboratories, NEC Corporation |
| Date | 2001/10/19 |
| Paper # | DSP2001-115,ICD2001-120,IE2001-99 |
| Volume (vol) | vol.101 |
| Number (no) | 384 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |