Detail publikace

Circle Detection in Pulsative Medical Video Sequence

ŘÍHA, K. BENEŠ, R.

Originální název

Circle Detection in Pulsative Medical Video Sequence

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The article deals with a new method for the detection of pulsative circular objects in a medical video sequence. The motivation for investigating this method consists in the fact that a circular object is not very apparent and its detection in such a frame is inaccurate. In some cases of medical images, the pulsative character of the circular area being searched can be used for its localisation. The proposed method starts from an analysis of movement, using optical flow estimation. The compensation of global movement is necessary because only local pulsative movement during the video sequence is assumed. The optical flow estimation is followed by another main processing step: the Hough Transform for the circle position estimation. Circles with expected properties are selected using the Bayes classifier. Finally, the circle position in a single frame is adapted using the analysis of average pixel intensity in the directions starting from the circle centre.

Klíčová slova

Circle detection, Video sequence, Optical flow, Hough Transform, Bayes classifyer

Autoři

ŘÍHA, K.; BENEŠ, R.

Rok RIV

2010

Vydáno

23. 10. 2010

Nakladatel

IEEE Press

Místo

Beijing

ISBN

978-1-4244-5898-1

Kniha

Proceedings of International Conference on Signal Processing, vol. I

Strany od

674

Strany do

677

Strany počet

4

BibTex

@inproceedings{BUT33327,
  author="Kamil {Říha} and Radek {Beneš}",
  title="Circle Detection in Pulsative Medical Video Sequence",
  booktitle="Proceedings of International Conference on Signal Processing, vol. I",
  year="2010",
  pages="674--677",
  publisher="IEEE Press",
  address="Beijing",
  isbn="978-1-4244-5898-1"
}