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

Yangxing Liu, Takeshi Ikenaga, Satoshi Goto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication8th International Conference on Signal Processing, ICSP 2006
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)0780397371, 9780780397378
DOIs
Publication statusPublished - 2006 Jan 1
Event8th International Conference on Signal Processing, ICSP 2006 - Guilin, China
Duration: 2006 Nov 162006 Nov 20

Publication series

NameInternational Conference on Signal Processing Proceedings, ICSP
Volume2

Conference

Conference8th International Conference on Signal Processing, ICSP 2006
CountryChina
CityGuilin
Period06/11/1606/11/20

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ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Science Applications

Cite this

Liu, Y., Ikenaga, T., & Goto, S. (2006). An efficient and accurate approach of detecting elliptical objects in color images. In 8th International Conference on Signal Processing, ICSP 2006 [4128998] (International Conference on Signal Processing Proceedings, ICSP; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICOSP.2006.345706