Software A-D Conversion Method for Digital Vision Chips.

• Kagami Shingo

  Department of Mathematical Engineering and Information

• Komuro Takashi

  Department of Information Physics and Computing, Graduate School of Information Science and Technology, University of Tokyo

• Fujimura Hidenori

  Department of Mathematical Engineering and Information

• Ishikawa Masatoshi

  Department of Information Physics and Computing, Graduate School of Information Science and Technology, University of Tokyo

Bibliographic Information

Other Title

• イメージセンシング技術とその応用　　ディジタルビジョンチップのためのソフトウェアＡ‐Ｄ変換手法
• ディジタル ビジョンチップ ノ タメ ノ ソフトウェア A D ヘンカン シュホウ

Abstract

A pixel-level analog-to-digital (A-D) conversion method suitable for digital vision chips is proposed. In this method, each quantization boundary is compared by determining whether the signal level integrated for a certain time has reached a certain voltage, where both the time and voltage are properly controlled by software for each boundary. We derive an algorithm to generate an optimal controlling schedule to realize an arbitrary A-D conversion scale subject to the condition that noise is minimized. Experimental results have shown that images with given A-D characteristics can be obtained with low noise.

Journal

• The Journal of The Institute of Image Information and Television Engineers

  The Journal of The Institute of Image Information and Television Engineers 57 (3), 385-390, 2003

  The Institute of Image Information and Television Engineers

Keywords

• CMOSイメージセンサ
• 画素レベルA-D変換
• ダイナミックレンジ
• 高速視覚
• 実時問処理

Details

• CRID: 1390282680074463616
• NII Article ID: 110003671119
• NII Book ID: AN10588970
• DOI: 10.3169/itej.57.385
• ISSN: 18816908
• ISSN: 13426907
• NDL BIB ID: 6477248
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6477248
• Web Site: http://www.jstage.jst.go.jp/article/itej1997/57/3/57_3_385/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed