REAL-TIME ALGORITHM FOR RETINAL TRACKING

被引：25

作者：

MARKOW, MS ^{[1
]}

RYLANDER, HG ^{[1
]}

WELCH, AJ ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT BIOMED ENGN ELECT & COMP ENGN,AUSTIN,TX 78712

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1993年 / 40卷 / 12期

关键词：

D O I：

10.1109/10.250583

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Conventional retinal laser photocoagulation is presentlv performed by an ophthalmologist manually aiming a low-power laser beam at a desired site and firing a high-power laser for a preselected interval of time. To automate this process a retinal tracker must acquire a target, track small saccades, and identify loss of track during a large saccade. The authors successfully implemented a real-time algorithm that used a simple computer, video digitizing card, low light video camera, and fundus camera to perform rudimentary tracking on a photograph of a retina undergoing smooth circular motion. The algorithm tracked speeds up to 5 Hz, or 27-degrees/s, which equated to the retina moving in a 525 mum diameter circle.

引用

页码：1269 / 1281

页数：13

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