Kottler M S, Rosenthal A R, Falconer D G
Invest Ophthalmol. 1976 Aug;15(8):651-4.
This report compares the reproducibility of analog and digital photogrammetry for topographical analysis of the optic cup. Ten simultaneous stereophotographs of each of three optic discs were taken with the Zeiss fundus camera plus a twin-prism stereoseparator. Digital processing produced photogrammetric contours of the optic cup and estimates of its geometry. Optic cup contours from the same stereopairs were also drawn with an analog stereoplotter and were analyzed by manual planimetry. The reproducibility of digital photogrammetry and analysis for estimation of cup depth, cup width, cup cross sectional area, and cup volume was concluded to be generally superior to the reproducibility of analog photogrammetry and manual analysis.
本报告比较了模拟摄影测量和数字摄影测量在视杯地形分析中的可重复性。使用蔡司眼底相机加双棱镜立体分离器，对三个视盘分别拍摄了十组同步立体照片。数字处理生成了视杯的摄影测量轮廓及其几何形状估计值。同一立体像对的视杯轮廓也用模拟立体绘图仪绘制，并通过手工平面测量法进行分析。结论是，数字摄影测量及其分析在估计杯深、杯宽、杯横截面积和杯体积方面的可重复性总体上优于模拟摄影测量和手工分析。
