| bibtype |
C -
Conference Paper (international conference)
|
| ARLID |
0422848 |
| utime |
20240103203636.2 |
| mtime |
20140207235959.9 |
| SCOPUS |
84891291217 |
| WOS |
000328616100190 |
| DOI |
10.1117/12.2025134 |
| title
(primary) (eng) |
Blind restoration of retinal images degraded by space-variant blur with adaptive blur estimation |
| specification |
| page_count |
8 s. |
| media_type |
E |
|
| serial |
| ARLID |
cav_un_epca*0424929 |
| ISBN |
978-0-8194-9601-0 |
| ISSN |
0277-786X |
| title
|
Proceedings ot the 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications |
| publisher |
| place |
Bellingham |
| name |
SPIE |
| year |
2013 |
|
|
| keyword |
medical image |
| keyword |
retinal image |
| keyword |
deconvolution |
| keyword |
deblurring |
| keyword |
space-variant restoration |
| author
(primary) |
| ARLID |
cav_un_auth*0275488 |
| name1 |
Marrugo |
| name2 |
A. |
| country |
ES |
|
| author
|
| ARLID |
cav_un_auth*0278222 |
| name1 |
Millán |
| name2 |
M. S. |
| country |
ES |
|
| author
|
| ARLID |
cav_un_auth*0108377 |
| full_dept (cz) |
Zpracování obrazové informace |
| full_dept |
Department of Image Processing |
| department (cz) |
ZOI |
| department |
ZOI |
| full_dept |
Department of Image Processing |
| name1 |
Šorel |
| name2 |
Michal |
| institution |
UTIA-B |
| fullinstit |
Ústav teorie informace a automatizace AV ČR, v. v. i. |
|
| author
|
| ARLID |
cav_un_auth*0101209 |
| full_dept (cz) |
Zpracování obrazové informace |
| full_dept |
Department of Image Processing |
| department (cz) |
ZOI |
| department |
ZOI |
| full_dept |
Department of Image Processing |
| name1 |
Šroubek |
| name2 |
Filip |
| institution |
UTIA-B |
| fullinstit |
Ústav teorie informace a automatizace AV ČR, v. v. i. |
|
| source |
|
| cas_special |
| project |
| ARLID |
cav_un_auth*0292734 |
| project_id |
GA13-29225S |
| agency |
GA ČR |
|
| abstract
(eng) |
Retinal images are often degraded with a blur that varies across the eld view. Because traditional deblurring algorithms assume the blur to be space-invariant they typically fail in the presence of space-variant blur. In this work we consider the blur to be both unknown and space-variant. To carry out the restoration, we assume that in small regions the space-variant blur can be approximated by a space-invariant point-spread function (PSF). However, instead of deblurring the image on a per-patch basis, we extend individual PSFs by linear interpolation and perform a global restoration. Because the blind estimation of local PSFs may fail we propose a strategy for the identication of valid local PSFs and perform interpolation to obtain the space-variant PSF. The method was tested on articial and real degraded retinal images. Results show signicant improvement in the visibility of subtle details like small blood vessels. |
| action |
| ARLID |
cav_un_auth*0300572 |
| name |
8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications |
| dates |
22.07.2013-26.07.2013 |
| place |
Porto |
| country |
PT |
|
| RIV |
JD |
| reportyear |
2014 |
| num_of_auth |
4 |
| presentation_type |
PR |
| inst_support |
RVO:67985556 |
| permalink |
http://hdl.handle.net/11104/0230915 |
| confidential |
S |
| mrcbT16-q |
90 |
| mrcbT16-s |
0.234 |
| mrcbT16-y |
13.98 |
| mrcbT16-x |
0.36 |
| mrcbT16-E |
Q3 |
| arlyear |
2013 |
| mrcbU14 |
84891291217 SCOPUS |
| mrcbU34 |
000328616100190 WOS |
| mrcbU63 |
cav_un_epca*0424929 Proceedings ot the 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications 978-0-8194-9601-0 0277-786X 8785D1 - 1-8785D1 - 8 Bellingham SPIE 2013 |
|