人眼追踪远距离裸眼立体视觉检测系统的研制和测试  

Evaluating stereo-acuity with distance glasses-free random dot stereo-test system via eye tracking method

作　　者：曹利群[1] 李鸣皋 王元庆[3] 高原 沈克强 CAO Liqun;LI Minggao;WANG Yuanqing;GAO Yuan;SHEN Keqiang(Ophthalmology Medical Center.Chinese PLA general hospital,Beijng 100048,China;Aviation and Nautical Medical Center,the Sixth Medical Center,Chinese PLA General Hospital,Beijng 100048,China;School of Electronic Science and Engineering,Nanjing University,Nanjing Jiangsu 210046,China;Naval Specialty Medical Center,Shanghai 200052,China;Beijing Jiachengshixin Digital Medical Technology Co.,Ltd,Beijing 100089,China)

机构地区：[1]中国人民解放军总医院眼科医学部,北京100048 [2]中国人民解放军总医院第六医学中心空潜科,北京100048 [3]南京大学电子科学与工程学院,北京210046 [4]海军特色医学中心,上海200052 [5]北京嘉铖视欣数字医疗技术有限公司,北京100089

出　　处：《转化医学杂志》2020年第5期299-301,310,共4页Translational Medicine Journal

基　　金：全军重大专项基金(AHJ2011Z001)。

摘　　要：目的应用人眼追踪技术研制裸眼随机点立体视觉检查系统(glasses-free random dot stereo-testsystem,GFRDSS),检测正常视力男性青年的5 m距离立体视锐度。方法在不同照度环境下检测230名正常视力、正常眼位男性青年的立体视锐度。观察组采用GFRDSS检测方法;对照组采用Distance Randot(DR)检测方法。结果GFRDSS可以检测视差范围40″~800″的5 m远距离立体视锐度。100~300 cd/m^2照度下,与对照组[41.3%(95/230)]比较,观察组有83.91%(193/230)受检者立体视锐度达到正常水平(40″~60″),差异有统计学意义(Z=-9.569,P<0.05)。350~600 cd/m^2照度下,与对照组[75.22%(173/230)]比较,观察组有84.78%(195/230)受检者立体视锐度达到60″,差异有统计学意义(Z=-4.048,P<0.05)。结论采用人眼追踪技术GFRDSS可以实现5 m距离无辅助立体视锐度检测,正常人群测试结果显示GFRDSS敏感性高于DR,且可以有效避免环境照度对检测的干扰。Objective To utilize eye tracking techuology to develop a distance glasses-free random dot stereo-test system(GFRDSS)applying eyes detection and location method,and estimate the stereo-acuity of young men with normal vision from 5 meters distance.Methods A novel distance stereotest(GFRDSS)was proposed,which was constructed by a glasses-free autostereoscopic display and a corresponding 5 m-distance stereotest software.The distance stereo-acuity of 230 young men with normal vision was estimated by GFRDSS(experimeut group)and Distance Randot(DR)stereotest(control group)under different illumination conditions.Results GFRDSS could estimate stereo-acuity from 5 m,with disparity levels from 40″to 800″.Under the illumination of 100~300 cd/m^2,193 subjects(83.91%)showed fine distance stereovision(40″~60″)by GFRDSS,while 95 subjects(41.3%)by DR.The difference between them was statistically significant(Z=-9.569,P<0.05).Under the illumination of 350~600 cd/m^2,195 subjects(84.78%)showed fine distance stereo-acuity detected by GFRDSS,and the result of DR was 173 subjects(75.22%).The difference between them was still statistically significant(Z=-4.048,P<0.05).Conclusion The novel GFRDSS via eye tracking method could realize the test for 5 m-distance glasses-free stereo-acuity.Its sensitivity is proved to be higher than that of DR by results from normal young men.In addition,the interference of environmental illumination to stereotest can be effectively avoided by GFRDSS.

关 键 词：立体视觉检查 随机点立体视觉检查图 自由立体显示器 人眼追踪 

分 类 号：R770.42[医药卫生—眼科]