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KOLÁŘ, R. HOEHER, B. ODSTRČILÍK, J. SCHMAUSS, B. JAN, J.
Original Title
Registration of image sequences from experimental low-cost fundus camera
Type
conference paper
Language
English
Original Abstract
This paper describes new registration approach for registration of low SNR retinal image sequences. We combine two approaches - Fourier-based method for large shift correction and Lucas-Kanade tracking for small shift and rotation correction. We also propose method for evaluation of registration results, which uses spatial variation of minimum value in intensity profiles through blood-vessels. We achieved precision of registration below 2.1 pixels, which is acceptable with regards to image SNR (around 10dB). The final averaging of registered sequence leads to improvement of image quality and improvement in SNR over 10 dB.
Keywords
retina, image registration, optical flow
Authors
KOLÁŘ, R.; HOEHER, B.; ODSTRČILÍK, J.; SCHMAUSS, B.; JAN, J.
RIV year
2014
Released
1. 7. 2014
Publisher
Springer International Publishing
Location
London
ISBN
978-3-319-08553-1
Book
Biomedical Image Registration
Edition
Lecture Notes in Computer Science
Edition number
8545
Pages from
174
Pages to
183
Pages count
15
URL
http://link.springer.com/chapter/10.1007%2F978-3-319-08554-8_18#
BibTex
@inproceedings{BUT110252, author="Radim {Kolář} and Bernhard {Hoeher} and Jan {Odstrčilík} and Bernhard {Schmauss} and Jiří {Jan}", title="Registration of image sequences from experimental low-cost fundus camera", booktitle="Biomedical Image Registration", year="2014", series="Lecture Notes in Computer Science", number="8545", pages="174--183", publisher="Springer International Publishing", address="London", doi="10.1007/978-3-319-08554-8\{_}18", isbn="978-3-319-08553-1", url="http://link.springer.com/chapter/10.1007%2F978-3-319-08554-8_18#" }