Loss of calibre information during vessel segmentation

• Main Authors: Che Azemin, Mohd Zulfaezal, Kumar, Dinesh Kant, Aliahmad, Behzad, Hao, Hao
• Format: Conference or Workshop Item
• Language: English
• Published: 2012
• Subjects: RE Ophthalmology; TK7885 Computer engineering
• Online Access: http://irep.iium.edu.my/33333/1/EMBC2012_Caliber.pdf; http://irep.iium.edu.my/33333/; http://dx.doi.org/10.1109/IECBES.2012.6498079

To obtain precise calibre measurements, there are two general approaches: segment the vessels and measure the diameter, and to measure the diameter from the greyscale images. While there is a claim that vessel segmentation does not solve diameter measurement problems it has not been proven experimentally. The aim of this work is two-fold: first, to prove that the resulting edges from good vessel segmentation may not be suitable for precise diameter measurement, and, second, to propose a method for compensating for the imprecision in the calibre measurement from the segmentation.