[1]MA Hui,WANG Kejun.A region of interest extraction method using rotation rectified finger vein images[J].CAAI Transactions on Intelligent Systems,2012,7(3):230-234.
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A region of interest extraction method using rotation rectified finger vein images

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 7 Number of periods: 2012 3 Page number: 230-234 Column: 学术论文—机器感知与模式识别 Public date: 2012-06-25
Title:
A region of interest extraction method using rotation rectified finger vein images
Author(s):
MA Hui1;  WANG Kejun2
1. College of Electronic Engineering, Heilongjiang University, Harbin 150080, China;
2. College of Automation, Harbin Engineering University, Harbin 150001, China
Keywords:
vein images;  finger vein;  region of interest extraction;  rotation rectification;  image segmentation;  finger vein recognition
CLC:
TP391.41
DOI:
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Abstract:
In order to reduce the influence of nonlinear translation and rotation on the positioning of finger vein images in the process of vein image sampling, a region of interest extraction method that utilizes a rotation rectified finger vein image was proposed. The method took account of the noncontact collecting characteristics. First, the finger regions of finger vein images were extracted using the Kapur entropy threshold method. These images were then rotated along their centroids; finally, the regions of interest were extracted according to the vertical projection value of every column pixel and the outline of the finger regions. Experimental results show that this algorithm can not only accurately extract the regions of interest of finger vein images, but also effectively improve the performance of the vein recognition system. 
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