An efficient and accurate approach of detecting elliptical objects in color images

Yangxing Liu, Takeshi Ikenaga, Satoshi Goto

研究成果: Conference contribution

抄録

Elliptical object detection in color images is an important step of many image recognition systems. In this paper, we present a novel approach to accurately detect elliptical objects in color images. The proposed method has an important feature of integrating color image edge detection result with a novel ellipse parameter estimation algorithm efficiently. First, we utilize an elaborate edge detection algorithm to extract image edge and obtain precise gradient direction of each edge pixel. Second we carefully select valid edge pixel pairs and an individual edge pixel to accumulate ellipses from the edge map by estimating five parameters of an arbitrary ellipse. The gradient direction information and geometric analysis are intelligently integrated into our algorithm to reduce computation complexity and avoid detecting false ellipses. Experimental results demonstrate that our algorithm is robust and efficient in locating multiple elliptical objects simultaneously with respect to different size, orientation and color.

本文言語English
ホスト出版物のタイトル8th International Conference on Signal Processing, ICSP 2006
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(印刷版)0780397371, 9780780397378
DOI
出版ステータスPublished - 2006 1 1
イベント8th International Conference on Signal Processing, ICSP 2006 - Guilin, China
継続期間: 2006 11 162006 11 20

出版物シリーズ

名前International Conference on Signal Processing Proceedings, ICSP
2

Conference

Conference8th International Conference on Signal Processing, ICSP 2006
国/地域China
CityGuilin
Period06/11/1606/11/20

ASJC Scopus subject areas

  • ソフトウェア
  • 信号処理
  • コンピュータ サイエンスの応用

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