| Presentation | 2002/6/20 MPEG-2 real-time software CODEC for full-duplex transmission applications over IP networks Hiroe IWASAKI, Jiro NAGANUMA, Makoto ENDO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a real-time MPEG-2 software CODEC for full-duplex transmission applications, and evaluates its performance and usefulness. The CODEC consists of a high-speed encoder/decoder, an IP sender/receiver, and an error recovery controller. Each encoder/decoder is accelerated and optimized by exploiting fast algorithms and data-level parallelism. The IP sender/receiver combination achieves low delay owing to a direct translating of each elementary stream of video and audio into UDP/IP packets. The error recovery controller carries out simple but powerful error tolerance against packet loss over IP networks. This CODEC attains low delay of 99 ms(M=1,N=1) to 165 ms(M=3,N=3) including input, encoding, transmitting, decoding, and output delays, and maintains a normal frame rate of 30 fps (frames per second) and more than 20 fps even under a fairly heavy network load. It provides sufficiently good performance for use as a real-time full NTSC-size CODEC on a PC of at least 1.2GHz CPU. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MPEG-2 CODEC / Software / Real-Time / IP network |
| Paper # | IE2002-19 |
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| Conference Information | |
| Committee | IE |
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| Conference Date | 2002/6/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Image Engineering (IE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | MPEG-2 real-time software CODEC for full-duplex transmission applications over IP networks |
| Sub Title (in English) | |
| Keyword(1) | MPEG-2 CODEC |
| Keyword(2) | Software |
| Keyword(3) | Real-Time |
| Keyword(4) | IP network |
| 1st Author's Name | Hiroe IWASAKI |
| 1st Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation() |
| 2nd Author's Name | Jiro NAGANUMA |
| 2nd Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation |
| 3rd Author's Name | Makoto ENDO |
| 3rd Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation |
| Date | 2002/6/20 |
| Paper # | IE2002-19 |
| Volume (vol) | vol.102 |
| Number (no) | 151 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |