Page 1 |
Save page Remove page | Previous | 1 of 131 | Next |
|
small (250x250 max)
medium (500x500 max)
large ( > 500x500)
Full Resolution
All (PDF)
|
This page
All
Subset |
REGISTRATION AND 3-D RECONSTRUCTION OF A RETINAL
FUNDUS FROM A FLUORESCEIN IMAGES SEQUENCE
by
Tae Eun Choe
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(COMPUTER SCIENCE)
August 2007
Copyright 2007 Tae Eun Choe
Object Description
| Title | Registration and 3-D reconstruction of a retinal fundus from a fluorescein images sequence |
| Author | Choe, Tae Eun |
| Author email | tchoe@usc.edu |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Computer Science |
| School | Viterbi School of Engineering |
| Date defended/completed | 2007-04-02 |
| Date submitted | 2007 |
| Restricted until | Unrestricted |
| Date published | 2007-06-29 |
| Advisor (committee chair) | Medioni, Gerard |
| Advisor (committee member) |
Itti, Laurent Sadda, Srinivas R. |
| Abstract | Image registration and shape reconstruction of a retinal fundus from fluorescein images are important steps to diagnose retinal diseases. This is difficult due to intensity changes in fluorescein images and the near-planarity of the retinal surface, which has a narrow range of depth variations. This study proposes methods for the registration and the 3-D reconstruction of a retina from a sequence of images. We first present a method locating vessels bifurcations, so called Y-features, which is a robust geometric feature in a retinal image. Subsequently, fitted Y-features are matched across images using Mutual Information to register their unordered colors and fluorescein images globally. Second, using matched Y-features, the epipolar geometry for a near-planar surface is robustly estimated by a plane+parallax approach, and a dense disparity map is estimated using the Mutual Information criterion. Finally, the 3-D structure of the near-planar retinal fundus is reconstructed in metric space by introducing a novel three-pass bundle adjustment method. Our experimental results validate the proposed methods on a set of difficult fluorescein image pairs and other near-planar surface images. |
| Keyword | registration; 3-D reconstruction; feature extraction; global registration; stereo matching |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Type | texts |
| Legacy record ID | usctheses-m561 |
| Rights | Choe, Tae Eun |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Choe-20070629 |
| Archival file | uscthesesreloadpub_Volume26/etd-Choe-20070629.pdf |
Description
| Title | Page 1 |
| Full text | REGISTRATION AND 3-D RECONSTRUCTION OF A RETINAL FUNDUS FROM A FLUORESCEIN IMAGES SEQUENCE by Tae Eun Choe A Dissertation Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY (COMPUTER SCIENCE) August 2007 Copyright 2007 Tae Eun Choe |
Comments
Post a Comment for Page 1
