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Sensuous Assesment Function of Images Based on Local Entropy Flow

Research Project

Project/Area Number 60580026
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Informatics
Research InstitutionFaculty of Engineering, Kobe University

Principal Investigator

TANAKA Hatsukazu  Faculty of Engineering, Kobe University Associate Professor, 工学部, 助教授 (80031144)

Project Period (FY) 1985 – 1986
Project Status Completed (Fiscal Year 1986)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1986: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1985: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsImages / Local Entropy Flow / Principle of Constant Entropy / Entropy Filter / 感覚的評価関数
Research Abstract

The main object of this research is to define the sensuous assesment function of images using a new concept of local entropy flow, and to develop a new sensuous coding scheme of images. First, a new concept of local entropy flow is introduced, and its quantitative definition is applied to some artificial images. The obtained entropy flow is plotted by three dimensional representation from which the validity of the above definition is certified. Next, we define a new concept of entropy filter which controls the parameter of the conventional low pass filter for images according to each value of the local entropy flow. Then the entropy filter is applied to the set of standard images "SIDBA", and using the results the filtering property is studied in details. The most important result is that the amount of information in the filtered images is greatly decreased, but sensuous degradation is very few, and hence, if the entropy filter is applied as a preprocessor of vector quantization, a new coding scheme with very low rate but few sensuous degradation will become possible. Finally, the sensuous assesment function of images is defined being based on the local entropy flow, and is evaluated for the set of standared images "SIDBA". The results show that the assesment funtion fits very well in the property of visual sensations though they are only relative values.

Report

(1 results)
  • 1986 Final Research Report Summary
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] H.Tanaka;M.Ando;A.Leon-Garcia: IEEE Transactions on Information Theory. IT-31. 530-537 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 本宮隆広,田中初一: 電子通信学会論文誌(B). J68-B. 1085-1090 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] H.Tanaka: IEEE Transactions on Information Theory. IT-33. (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 田中初一,香田敏行: 電子情報通信学会論文誌(A). J70-A,4月号. (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 田中初一,早崎嘉城: 電子情報通信学会論文誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Takahiro HONGU and Hatsukazu TANAKA: "Hybrid Coding of Images Using Adaptive Quantizer" IECE Trans. (B). J68-B. 1088-1090 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Hatsukazu TANAKA, Minoru ANDO and Albert LEON-GARCIA: "A Unique Ranking of Multi-Level Sequences and Its Application to Source Coding" IEEE Trans. Information Theory. IT-31. 530-537 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Hatsukazu TANAKA: "Data Structure of Huffman Codes and Its Application to Efficient Encoding and Decoding" IEEE Trans. Information Theory. IT-33. (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Hatsukazu TANAKA and Yoshiki HAYASAKI: "Sensuous Processing of Images Based on The Local Entropy Flow and Its Evaluation" IECE Trans. (B).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary

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Published: 1987-03-31   Modified: 2016-04-21  

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