立体图像对亮度差异对立体视融合的影响研究

Study on the Effect of the Binocular Fusion with Luminance Difference Images

针对具有亮度差异的立体图像对如何影响立体融合,提出了对不同亮度差异的立体图像对识别融合的影响范围。通过8名被试对亮度差异分别为0,10,20,30,40,50,60,70,80,90的立体图像对融合识别的反应时和正确率进行分析,给出了亮度差异对立体视融合的定量影响范围。结果表明：反应时随着亮度差异的增大逐渐增加,但识别正确率逐渐降低。亮度差异为20以下,立体识别可达到较好的识别效果,反应时较短并且正确率很高。当亮度差异介于20～60之间,反应时急剧增加,正确率稍有降低。但当亮度差异达到60以上,不仅反应时急剧增加,而且正确率急剧降低,达到很难识别的程度。

The stereo images with different luminance were utilized as stimulus to investigate the stereopsis fusion in 8normal subjects. The response of every subject was recorded in ten luminance difference（0,10,20,30,40,50,60,70,80,90） and the fusion range of luminance difference was proposed. The results showed：Response times were increasing with the increasing luminance difference and accuracies were decreasing with the increasing luminance difference.When the luminance difference was below 20, the discrimination could achieve better effect. The response time was short and the accuracy was high. And when the luminance differences were between 20 and 60,the response times increased sharply. But when the luminance difference reached 60,not only the response times increased sharply,but also the accuracies decreased sharply. It was very difficult to fuse the stereo images.