Analog integrated circuits for edge detection with wide dynamic range

DOI Web Site 2 Citations 4 References
  • Takahashi A.
    Dept. of Electrical and Electronic Eng., Toyohashi Univ. of Technology
  • Nishio K.
    Dept. of Electrical and Electronic Eng., Toyohashi Univ. of Technology
  • Sawa S.
    Dept. of Electrical and Electronic Eng., Toyohashi Univ. of Technology
  • Furukawa Y.
    Dept. of Electrical and Electronic Eng., Toyohashi Univ. of Technology
  • Yonezu H.
    Dept. of Electrical and Electronic Eng., Toyohashi Univ. of Technology

Bibliographic Information

Other Title
  • 網膜に学んだ広ダイナミックレンジを有するエッジ検出機構の電子回路化(高機能イメージセンサ)
  • 網膜に学んだ広ダイナミックレンジを有するエッジ検出機構の電子回路化
  • モウマク ニ マナンダ コウダイナミックレンジ オ ユウスル エッジ ケンシュツ キコウ ノ デンシ カイロカ

Search this article

Description

A novel retinal circuit for edge detection, which has light adaptation in the photoreceptor layer, was constructed. The circuit compresses a large range of input intensity to a reasonable range for edge detection by making use of local light adaptation of the photoreceptor layer. The simulated result showed that the circuit covered 5 decades of light intensity keeping high spatial resolution. Due to the amplification function of the circuit, dark-intensity inputs were amplified locally so that both light intensities of the dark inputs and bright inputs became the same order in a single input image. In conclusion the circuits detected edges at the same time in a single input image that has 5 decades of light intensity.

Journal

  • ITE Technical Report

    ITE Technical Report 26.41 (0), 17-20, 2002

    The Institute of Image Information and Television Engineers

Citations (2)*help

See more

References(4)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top