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微创手术具有创伤小、术后恢复快、降低患者手术风险的优点。相比于传统的二维腹腔镜技术,三维腹腔镜系统使用双光路成像系统和三维显示设备,改善了二维成像技术在深度信息上的缺乏,降低了医生操作手术器械的难度,提高了手术的准确性。为此,该文作者设计了一套能够提供深度信息的裸眼三维宽视场电子腹腔镜系统,该系统主要由双光路CMOS摄像腹腔镜模块、图像处理模块、裸眼三维显示模块组成。在设计中为了保证医生在多个角度可以观看到三维效果,使用了基于主动形状模型的方法实现人眼跟踪,从而实现宽视场显示。采用该系统进行手术模拟训练的初步实验结果表明,完成指定操作的时间明显少于传统的未加入深度信息的腹腔镜系统所用时间。
Minimally invasive surgery has the advantages of less trauma, faster postoperative recovery and lower surgical risk. Compared with the traditional two-dimensional laparoscopy, the three-dimensional laparoscopic system uses a dual optical imaging system and a three-dimensional display device, which improves the lack of depth information in two-dimensional imaging and reduces the difficulty of doctors in operating surgical instruments and improves the operation Accuracy To this end, the author of the article devised a set of naked-eye three-dimensional wide-field electronic laparoscopic system capable of providing depth information. The system mainly consists of a dual optical path CMOS camera laparoscopic module, an image processing module and a naked-eye three-dimensional display module. In the design, in order to ensure that the doctor can view the 3D effect from multiple angles, the method based on the active shape model is used to realize the human eye tracking so as to realize the wide field of view display. Preliminary experimental results using the system for surgical simulation training showed that the time to complete the designated operation was significantly less than that of the traditional laparoscopic system without the added depth information.