用于立体视检测的微机软件包的设计

A Design of Microcomputer Software Packagefor Stereoscopic Vision Test.

为了快速、方便、准确地检测人的立体视功能，根据双眼视差原理，设计了用于立体视检测的微机软件包称为立体视检测（ＳＶＴ）．利用该软件可在彩色屏幕（ＶＧＡ）上产生静态等视差图（图中各部分的视差不随空间位置的变化而改变）、变视差图、以及在深度上的正弦波状起伏图形．叙述了设计原理和程序框图；报导了用ＳＶＴ软件包对视力正常和异常儿童的立体视检测结果并讨论了其临床应用价值．

A microcomputer software packagefor stereoscopic vision test named SVT wasdesigned based on the principle of binoculardisparity,Three kinds of patterns wete pro-duced on color screen of PC computer:Thefirst one was iso-disparity static random-dotstereogram(RDS)which contained eightkinds of patterns(such as circle,cross andon),six levels of disparity were:1'、3'、5'、10'、20'、30'.The second one was the patternwhich disparity was different in differentparts,such as bowl,ball and so on. And thelast one was pattern with different frequenciesof sinusoidal variation in disparity(includedRDS and line-stereogram).A set of staticRDS was used in testing stereoscopic visionfor normal and abnormal vision children. Itshowed that the SVT software package can beused in amblyopia and strabismus screeningclinically.