• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1997 Fiscal Year Final Research Report Summary

A Study on High-Quality Layred Transmission of Images on the Basis of Multiresolution Representations

Research Project

Project/Area Number 07650419
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 情報通信工学
Research InstitutionNiigata University

Principal Investigator

KIKUCHI Hisakazu  Department of Electrical Engineering, Professor, 工学部, 教授 (70126407)

Co-Investigator(Kenkyū-buntansha) SASAKI Shigenobu  Department of Electrical Engineering, Lecturer, 工学部, 講師 (20242399)
Project Period (FY) 1995 – 1997
Keywordsimage compression / wavelets / source and channel coding / image enhancement / mobile telecommunication / CDMA / spread apectrum
Research Abstract

A broader interest in this research is targeted at the mobile telecommunications for imagery. The purpose of study is to develop a quality high-speed layred transmission system for images. A platform for image representations is provided by the wavelet-based multiresolution representation, and the parallel combinatorial spread apectrum technology is assumed to be a promising wireless telecommunication system. Major results are summarized in four points as follows.
/1/A layred image coding scheme is studied to provide wide-range scalability with respect to both image quality and spatial resolution, and the coding scheme comprises a direct-product wavelet expansion, nonlinear quantization with dead bands, multi-stage zero runlength coding and arithmetic coding.
/2/For quality image transmission in mobile telecommunications, parallel combinatorial spread apectrum systems are investigated in conjunction with error correcting decoding, and also their bit error rate performances have been found to be significantly improved in typical multipath fading channels.
/3/Decoded image quality has been very improved in realistic wireless telecommunication environments by negotiable trade-off between a layred encoded data stream and additional error correcting codes.
/4/As an option at receivers, a new image enhancement method has been developed. It is a local feature-based estimation based on statistical knowledge described in a vector quantization code book, and the code book consists of typical behaviors of edges and outlines across scales in a wavelet-based multiresolution space.

  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] 阿部 淑人: "多重解像度ベクトル量子化を用いた画像輪郭強調" 電子情報通信学会論文誌. J79-A・5. 1032-1040 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Sasaki: "Error Rate Analysis of Coherent and Differential Multiphase Parallel Combinatorial Spread Spectrum Systems" IEICE Trans,on Fundamentals. E80-A・7. 1196-1203 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 阿部 淑人: "ウェーブレット画像符号化による品質・空間スケーラビリティ" 映像情報メディア学会誌. 51・11. 1889-1898 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Nakazawa: "Vector Quantization of Multiresolution Joint Sub-Images" Proc.Joint Tech.Conf.on Circuitsl Systems,Comput and Commin. 1. 165-168 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Sasaki: "Performance of Differential Multiphase Parellel Combinatory Spread Spectrum Communication Systems" Proc.Int.Conf.on Communication Technology. 1. 591-594 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Kikuchi: "Multiresolution Hierarchical Coding of High Definition Images" Proc.ITC-CSCC. 1. 249-252 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Sasaki: "Parallel Combinatorial CDMA Systemsin Rican Fading Multipath Channel" Proc.Int.Workshop on Multi-Dimersional Mobile Commun.690-694 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Abe.: "High Definition Picture Coding with Spatial and SNR Scalability" Proc.Int.Symp.on Information Theory and Its Appl.794-797 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Sasaki: "Performance of Differential Parallel Combinatorial CDMA Systems in Rayleigh Fading Channels" Proc.Int.Sysmp.on Spread Spectrum.Tech.and Appl.697-701 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.H.Joo: "Flexible Zerotree Coding with Low Entropy" Proc.Int.Workshop on Advanced Image Technology. 1. 189-194 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Sasaki: "Parallel Combinatorial Spread Spectrum Communication Systems with Side Information" Proc.Taiwan-Japan Joint Workshop on the Latest Development. 1. 113-118 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Abe, H.Kikuchi, S.Sasaki, H.Watanabe and Y.Saito: "Edge Enhancement of Images Using Multiresolution Vector Quantization (in Japanese)" IEICE Trans. on Fundamentals. Vol.J79-A,No.5. 1032-1040 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Sasaki, H.Kikuchi, J.Zhu, G.Marubayashi: "Error Rate Analysis of Coherent and Differential Multiphase Parallel Combinatorial Spread Spectrum Systems" IEICE Trans. on Fundamentals. Vol.E80-A,No.7. 1196-1203 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Abe, H.Kikuchi and S.Sasaki: "Quality and Spatial Scalabilities Implemented by Using Wavelet Image Coding (in Japanese)" Journal of Inst. Image Information and Television Engineers. Vol.51, No.11. 1889-1898 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Nakazawa, Y.Abe, S.Sasaki, H.Kikuchi: "Vector Quantization of Multiresolution Joint Sub-Images" Proc. Joint Technical Conference on Circuits/Systems, Computers and Communications Kumamoto. 165-168 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Sasaki, H.Kikuchi, J.Zhu and G.Marubayashi: "Performance of Differential Multiphase Parallel Combinatory Spread Spectrum Communication Systems" Proc. International Conference on Communication Technology, Beijing. Vol.1. 591-594 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Kikuchi, Y.Abe, and S.Sasaki: "Multiresolution Hierarchical Coding of High Definition Images" Proc. International Technical. Conference on Circuits/Systems, Computers and Communications Seoul. 249-252 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Sasaki, H.Kikuchi, J.Zhu and G.Marubayashi: "Parallel Combinatorial CDMA Systems in Rician Fading Multipath Channel" Proc. International Workshop on Multi-Dimensional Mobile Communications, Seoul. 690-694 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Abe, S.Sasaki, and H.Kikuchi: "High Definition Picture Coding with Spatial and SNR Scalability" Proc. International Symposium on Information Theory and Its Applications, Victoria, Canada. 794-797 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Sasaki, H.Kikuchi, J.Zhu and G.Marubayashi: "Performance of Differential Parallel Combinatorial CDMA Systems in Rayleigh Fading Channels" Proc. International Symposium on Spread Spectrum Techniques and Applications, Mainz, Germany. 697-701 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.H.Joo, H.Kikuchi, S.Sasaki, and J.H.Shin: "Flexible Zerotree Coding with Low Entropy" Proc. International Workshop on Advanced Image Technology, Cheju, Korea. 189-194 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Sasaki, H.Kikuchi, G.Marubayashi: "Parallel Combinatorial Spread Spectrum Communication Systems with Side Information" Proc. Taiwan-Japan Joint Workshop on the Latest Development of Telecommunication Research, Hsinchu, Taiwan. Vol.1. 113-118 (1998)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1999-03-16  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi