A novel method for vessel detection using contourlet transform

Farnoosh Ghadiri, Seyed Mohsen Zabihi, Hamid Reza Pourreza, Touka Banaee

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

Abstract

Vessel detection is an important task for diagnosis of vascular diseases in clinical images. Many diseases such as diabetic retinopathy and hypertension can be detected by retinal vessel map or scanning conjunctival vessels. There are a lot of techniques for vessel extraction from retinal images but most of them have failed to face with some patterns like hemorrhages and micro aneurysms. In this paper we develop an algorithm based on Non-subsampled Contourlet Transform (NSCT) and morphological operations. By combining of information from two scales of contourlet and gray scale image, vessel map is extracted. Optic disc border is eliminated by Non-subsampled Contourlet directional information. In addition, circular shapes such as micro aneurysms are removed using morphological operations. We examine our algorithm on retinal images of DRIVE database and conjuntival images of Khatam database. Experimental results show significant improvements in achieving high accuracy and decreasing False Positive Rate (FPR) of vessel detection on both databases.

Original languageEnglish (US)
Title of host publication2012 National Conference on Communications, NCC 2012
DOIs
StatePublished - 2012
Externally publishedYes
Event18th National Conference on Communications, NCC 2012 - Kharagpur, India
Duration: Feb 3 2012Feb 5 2012

Publication series

Name2012 National Conference on Communications, NCC 2012

Conference

Conference18th National Conference on Communications, NCC 2012
CountryIndia
CityKharagpur
Period2/3/122/5/12

Keywords

  • conjunctival vessels
  • morphological operation
  • non-subsampled contourlet
  • retinal vessels
  • vessel detection

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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