Detecting objects by using DCT coefficients analysis

Michio Miwa, Quang Huy Viet Huynh, Masahiro Ishii, Yasuharu Koike, Makoto Sato

研究成果: Article査読

2 被引用数 (Scopus)

抄録

The depth information of objects is important for retrieving and indexing image information. A method is described for finding the depth of objects by taking three pictures, each with a different focus. One picture is focused at the target position, one is focused near the target, and the last one is far from it. DCT coefficients are used to estimate how each picture is focused. By comparing the sum of the frequency coefficients of these pictures, we can determine whether an object is in the target position or not.

本文言語English
ページ(範囲)252-259
ページ数8
ジャーナルKyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers
54
2
DOI
出版ステータスPublished - 2000
外部発表はい

ASJC Scopus subject areas

  • メディア記述
  • コンピュータ サイエンスの応用
  • 電子工学および電気工学

引用スタイル