中文摘要：

微创手术使得病人的手术创伤大大减小，给病人带来了福音。微创手术过程通过医用电子内窥镜获得手术病人体内的图像信息进行手术。由于只能获得二维图像信息。导致病人体内器官三维深度信息的丢失，给手术带来了更大的难度。研究和开发自由视角立体电子内窥镜系统，分析了立体视觉的原理，设计立体电子内窥镜的系统结构，并制造出样机，实现了立体术野的实时显示，以及内窥镜镜头视角的自由转动。

英文摘要：

The use of medical electronic endoscope makes the diameter of the operative mouth smaller and smaller, which has brought the gospel to the patients. But this directly leads to loss of depth information of the patient＇s body organs, which has brought great difficulty to the surgery. The paper describes the realization of the electronic endoscopes with free three-dimensional perspective. The system can show the depth of information in the patient＇s body to doctors in real time. In this paper, the principle and the realization of this system are described from hardware to software.