ISSN 0439-755X
CN 11-1911/B
主办:中国心理学会
   中国科学院心理研究所
出版:科学出版社

心理学报 ›› 1990, Vol. 22 ›› Issue (1): 60-65.

• • 上一篇    下一篇

双眼深度感知与图像元素数量的关系

金贵昌;郑竺英;周桂荣   

  1. 中国科学院生物物理所,中国科学院生物物理所,中国科学院生物物理所 北京 ,北京 ,北京
  • 出版日期:1990-03-25 发布日期:1990-03-25
  • 通讯作者: 金贵昌

THE RELATIONSHIP BETWEEN ELEMENT AMOUNT AND BINOCULAR STEREOSCOPIC PERCEPTION

Jin Guichang;Zheng Zhuying;Zhou Guirong Institute of Biophysics, Academia Sinica   

  • Online:1990-03-25 Published:1990-03-25

摘要: 用微机化的伪随机点立体图对发生器产生静态和动态随机点立体图对(RDS),显示在左右两个示波器上。RDS图形中的元素密度可以改变。具有正常立体视的10名被试通过立体镜观察这些图形,测量双眼融合能产生完整立体图形感知所需最小的元素密度,即密度容限。 设计了三个实验用以检测改变RDS图形的空间参数对密度客限的影响。第一个实验,在静、动态RDS图形下,改变视差图形面积;第二个实验,改变视差图形的形状;第三个实验,改变视差图形的周长。 实验结果表明,双眼深度感知要求一定的元素密度容限,视差图形的大小和形状对密度容限有一定程度的影响。静态和动态RDS图形的密度容限也不相同。 本文利用RDS的整体立体感知特性和空间频率通道理论对实验结果进行了讨论。

关键词: NULL

Abstract: A static and a dynamic random-dit stereogram(RDS) pair is produ- ced respectively by a microcomputerized pseudo RDS generator and displa- yed on corresponding left and right oscilloscopes, observed by two eyes respectively. 10 subjects with normal stereoscopic vision viewed by a stereoscopy and the smallest tolerant element density in which binocular fusion can produce clear perception of form in depth was determined. Three experiments were designed to determine the effect of changing spatial parameters of RDS patterns on the limitation of the element den- sity. The first was the change of pattern area for the static and the dy- namic RDS respectively. The second was the change of pattern form and the third was the change of circumference of pattern with disparity. The result indicates that binocular stereoscopic perception can tolera- te a certain limitatity of element density, changing of size and form of pattern affects tolerant element density to a certain extent. The limitati- on of tolerant element density for static RDS differs for dynamic one. The experimental result was discussed using global stereoscopic cha- racteristic and spational frequency channel.

Key words: NULL