Development of a Functional LSI Achieving Low-rate Multimedia Data Transmission.

开发实现低速率多媒体数据传输的功能LSI。

• 批准号: 10450136
• 负责人: ONODERA Hidetoshi
• 金额: $ 6.98万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-10450136/
• 关键词: DSP; Multimedia; Parallel Processing; Image Compression; Low-rate; VLSI; FMPP; 機能メモリ; 高速バス

The main goal of this research project is to develop a multimedia communication system including low-power system-LSIs that are developed for real-time low-rate image compression and decompression.This research develops two innovative results as follows.(1) A Low-rate Video Compression Algorithm using Vector-Quantization : FRMSHVQ FRMSHVQ stands for fixed-rate multistage Hierarchical Vector Quantization. It can compress a 10fps. Q-CIF (176×144) video sequence to 29.2kbps. FRMSHVQ uses vector quantization instead of DCT on MPEG which feature enables easy decompression by using a table look-up compared with IDCT operation on MPEG.(2) A Low-power DSP for FRMSHVQ : VP-DSP We have developed and implemented a low-power DSP for the FRMSHVQ algorithm called VP-DSP.VP-DSP stands for a vector-pipeline DSP.The register file of VP-DSP contains several long-bit (160-bit) registers for 16-parallel SIMD operations frequently used on FRMSHVQ.The implemented LSI works properly at 25MHz and 1.6V.The power dissipation is only 49mW for real-time encoding/decoding of a 10fps. QCIF video sequence.

该研究项目的主要目标是开发多媒体沟通系统，包括用于实时低速图像压缩和减压的低功耗系统LSIS。这项研究通过以下两种创新的结果。（1）使用矢量量化的低速率视频压缩算法：FRMSHVQ FRMSHVQ代表固定速率vacter for formshvq for formant for videTratiation for vacter for vactory vactory hierArch。它可以压缩10fps。 Q-CIF（176×144）视频序列为29.2kbps。 FRMSHVQ uses vector quantization instead of DCT on MPEG which feature enables easy decompression by using a table look-up compared with IDCT operation on MPEG.(2) A Low-power DSP for FRMSHVQ: VP-DSP We have developed and implemented a low-power DSP for the FRMSHVQ algorithm called VP-DSP.VP-DSP stands for a vector-pipeline DSP.The register file of VP-DSP contains经常在FRMSHVQ上使用的16-并行SIMD操作的几个长位（160位）寄存器。实现的LSI在25MHz和1.6V处正常工作。功率耗散仅49MW，用于实时编码/解码10fps。 QCIF视频序列。

项目成果

T.Iwahashi, T.Shibayama, M.Hahsimoto, K.Kobayashi, H.Onodera: "Vector Quantization Processor for Mobile Video Communication."Proc.of 13th IEEE SOC/ASIC Conference. 2000. 75-79 (2000)

T.Iwahashi、T.Shibayama、M.Hahsimoto、K.Kobayashi、H.Onodera：“用于移动视频通信的矢量量化处理器”。第 13 届 IEEE SOC/ASIC 会议的会议记录。

H.Onodera,K.Kobayashi: "Vector Quantization Processor for Mobile Video Communication."Proc.of 13th IEEE SOC/ASIC Conference 2000. 75-79 (2000)

H.Onodera,K.Kobayashi：“用于移动视频通信的矢量量化处理器。”Proc.of 13th IEEE SOC/ASIC Conference 2000. 75-79 (2000)

H.Onodera,K.Kobayashi: "Architecture and Performance Evaluation of a New Functional Memory : Functioal Memory for Addition"IEICE Transactions Fundamentals. E83-A(12). 2400-2408 (2000)

H.Onodera、K.Kobayashi：“新功能存储器的架构和性能评估：用于加法的功能存储器”IEICE 交易基础知识。

H.Onodera,K.Kobayashi: "A Real-Time Low-Rate Video Compression Algorithm Using Multi-Stage Hierachical Vector Quantization."IEICE Trans.on Fundemental. E82-A(2). 215-222 (1999)

H.Onodera、K.Kobayashi：“使用多级分层矢量量化的实时低速率视频压缩算法”。IEICE Trans.on 基础。

H.Onodera,K.Kobayashi: "A Vector-Pipeline DSP for Low-Rate Videophones."Proceedings of ASP-DAC 2001. 1-2 (2001)

H.Onodera,K.Kobayashi：“用于低速率可视电话的矢量管道 DSP。”ASP-DAC 2001 会议记录。1-2 (2001)