DocumentCode
2198026
Title
A Novel Gray-Level Registration Algorithm for DSA Image Based on Subtraction Histogram
Author
Chu, Y. ; Ji, Z. ; Chen, S.P. ; Mou, X.Q.
Author_Institution
Fac. of Inf. Eng., Shenzhen Univ.
fYear
2006
fDate
14-17 Nov. 2006
Firstpage
1
Lastpage
3
Abstract
A novel gray-level registration algorithm for digital subtraction angiography (DSA) image based on subtraction histogram (the histogram of subtraction image) is firstly proposed in this paper. Due to gray-level distortion, the gray value of pixel in background region in subtraction image is shifted to a nonzero value, which is defined as gray value shift (GVS). The GVSs of all pixels in subtraction image can be calculated from the information contained in the subtraction histogram. The experiment results have shown that this algorithm can effectively reduce artifacts, and the visualization quality of vessels in subtraction image is significantly improved
Keywords
diagnostic radiography; image registration; medical image processing; DSA image; GVS; digital subtraction angiography; gray value shift; gray-level registration algorithm; subtraction histogram; Angiography; Biomedical imaging; Blood vessels; Geometry; Histograms; Image processing; Pixel; Visualization; Voltage; X-ray imaging;
fLanguage
English
Publisher
ieee
Conference_Titel
TENCON 2006. 2006 IEEE Region 10 Conference
Conference_Location
Hong Kong
Print_ISBN
1-4244-0548-3
Electronic_ISBN
1-4244-0549-1
Type
conf
DOI
10.1109/TENCON.2006.343841
Filename
4142126
Link To Document