Automatic Anterior Chamber Angle Assessment for HD-OCT Images

作者：Tian Jing^*; Marziliano Pina; Baskaran Mani; Wong Hong Tym; Aung Tin

来源：IEEE Transactions on Biomedical Engineering, 2011, 58(11): 3242-3249.

DOI：10.1109/TBME.2011.2166397

• Angle-closure glaucoma
• anterior chamber angle
• HD-OCT
• Schwalbe's line and dewarping

Angle-closure glaucoma is a major blinding eye disease and could be detected by measuring the anterior chamber angle in the human eyes. High-definition OCT (Cirrus HD-OCT) is an emerging noninvasive, high-speed, and high-resolution imaging modality for the anterior segment of the eye. Here, we propose a novel algorithm which automatically detects a new landmark, Schwalbe's line, and measures the anterior chamber angle in the HD-OCT images. The distortion caused by refraction is corrected by dewarping the HD-OCT images, and three biometric measurements are defined to quantitatively assess the anterior chamber angle. The proposed algorithm was tested on 40 HD-OCT images of the eye and provided accurate measurements in about 1 second.

• 出版日期2011-11
• 单位南阳理工学院