虚拟现实技术作为面向21世纪的新技术，是计算机图形学、人机接口技术、传感器技术以及人工智能技术等交叉与综合的结果。针对虚拟现实技术在照相领域中的应用空白，提出了虚拟环境下的实时自助照相技术，讨论了该技术所涉及到的虚拟现实、视频截取等关键性问题，详细介绍了在系统开发中提出的一种新算法：基于对比度感知特征的图像融合技术。

As a new technology towards 21st century, the occurs of the virtual reality technology is a result of computer graphic, human machine interface technology, sensor technology and artificial intelligence. The real time self photographing technology based on the virtual environment is a typical application of this virtual reality technique. A series of things has been discussed and studied ,such as visual reality,video intercept and so on,and the real time self photographing system based on the technology of blue background image extracting. A new arithmetic is emphasized which is produced during study and exploitation.It is image fusion technique based on the contrast appreciate characteristic.

TP391

国家科技型中小企业技术创新基金资助项目 (0 1C2 62 2 5 110 5 88)