Name
Abstract | ||
|---|---|---|
A new system is proposed for tracking sensitive areas in the retina for computer-assisted laser treatment of choroidal neovascularization (CNV). The system consists of a fundus camera using red-free illumination mode interfaced to a computer that allows real-time capturing of video input. The first image acquired is used as the reference image and utilized by the treatment physician for treatment planning. A grid of seed contours over the whole image is initiated and allowed to deform by splitting and/or merging according to preset criteria until the whole vessel tree is demarcated. Then, the image is filtered using a one-dimensional Gaussian filter in two perpendicular directions to extract the core areas of such vessels. Faster segmentation can be obtained for subsequent images by automatic registration to compensate for eye movement and saccades. An efficient registration technique is developed whereby some landmarks are detected in the reference frame then tracked in the subsequent frames. Using the relation between these two sets of corresponding points, an optimal transformation can be obtained. The implementation details of proposed strategy are presented and the obtained results indicate that it is suitable for real-time location determination and tracking of treatment positions. |
Year | DOI | Venue |
|---|---|---|
2002 | 10.1109/TBME.2002.802059 | IEEE transactions on bio-medical engineering |
Keywords | Field | DocType |
eye,radiation therapy,vessel tree,eye movement compensation,vessel core areas extraction,fundus camera,blood vessels,image segmentation,seed contours grid,treatment positions tracking,medical instrumentation,optical images,biomedical equipment,image-guided laser treatment,saccades,red-free illumination mode,real-time retinal tracking system,real-time video input capturing,image registration,laser applications in medicine,choroidal neovascularization,medical image processing | Gaussian filter,Reference frame,Computer vision,Computer science,Segmentation,Tracking system,Image segmentation,Eye movement,Artificial intelligence,Grid,Image registration | Journal |
Volume | Issue | ISSN |
49 | 9 | 0018-9294 |
Citations | PageRank | References |
10 | 0.98 | 12 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Nahed H Solouma | 1 | 25 | 2.39 |
| Abou-Bakr M Youssef | 2 | 182 | 15.81 |
| Yehia A Badr | 3 | 10 | 0.98 |
| Y. M. Kadah | 4 | 192 | 18.80 |