Title :
A realization of dynamic random-dot stereograms for cortical stereoscopic VEP on the IBM PC
Author :
Duan Huilong ; Yu, Tang ; Guang, Ge Ji
Author_Institution :
Dept. of Sci. Instrum., Zhejiang Univ., Hangzhou, China
Abstract :
In order to assess stereopsis objectively by visual evoked potentials (VEP) measured at the human scalp, dynamic random-dot stereograms (RDS) were generated online on an IBM PC. The stimulus, a rectangular area of certain size with binocular disparity different from its surrounding, was perceived in depth when viewed with a stereoscope (binocularly). Monocularly, only a continuous ´snowstorm´ just like dynamic TV noise could be perceived. The whole procedure of dynamic RDS generation was controlled by software. No special hardware was required.<>
Keywords :
bioelectric potentials; biology computing; visual perception; IBM PC; binocular disparity; cortical stereoscopic visual evoked potentials; dynamic TV noise; dynamic random-dot stereograms; human scalp; rectangular area; snowstorm; stereopsis assessment;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.95296
