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Utilization of ultra high definition displays for improving perceptual image quality

Research Project

Project/Area Number 15K16033
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Perceptual information processing
Research InstitutionNagaoka National College of Technology

Principal Investigator

KAMIMURA Kenji  長岡工業高等専門学校, 電子制御工学科, 准教授 (80708090)

Research Collaborator TAKAHASHI Akira  
TAKEBE Keisuke  
ABE Ryoma  
NAGUMO Shota  
TANAKA Ryosuke  
Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords画像 / 画質 / 知覚 / ディスプレイ / 高精細ディスプレイ / 階調性 / 色彩
Outline of Final Research Achievements

It was confirmed that the color depth can be expanded to 10 bits or more even in 8 bits display by using the area gradation method. We bundled 4 pixels of the ultra high definition display to achieve deeper color depth.
We also analyzed the influence of displaying pattern of bundled 4 pixels on perceived image quality. Results showed that in case of a random pattern was used, the luminance balance between adjacent pixels was lost in a flat region in the image, and salt-pepper noise is generated. In case of horizontal high contrast pattern was used, coloring phenomenon which seems to be caused by the structure of the display was observed.
There is still room for study in the area graduation method.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (3 results)

All 2016 2015 Other

All Presentation (2 results) Remarks (1 results)

  • [Presentation] 高精細ディスプレイにおける階調増加法の検討2016

    • Author(s)
      南雲祥多,上村健二,高橋章,竹部啓輔
    • Organizer
      第26回電気学会東京支部新潟支所研究発表会
    • Place of Presentation
      長岡技術科学大学(新潟県・長岡市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] 超高精細ディスプレイを活用した知覚画質向上2015

    • Author(s)
      阿部凌磨,上村健二,高橋章
    • Organizer
      平成27年度電子情報通信学会信越支部大会
    • Place of Presentation
      新潟工科大学(新潟県・柏崎市)
    • Year and Date
      2015-10-03
    • Related Report
      2015 Research-status Report
  • [Remarks] 色彩映像処理研究室

    • URL

      http://www.nagaoka-ct.ac.jp/ec/labo/cvip/gresearch.html

    • Related Report
      2016 Annual Research Report

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Published: 2015-04-16   Modified: 2018-03-22  

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