Liver cutting algorithm based on virtual plane

At present, the algorithm for virtual liver cutting requires a lot of computation, has poor real-time performance, and is easy to produce degenerated triangle and deformed triangle, and the physical characteristics are lost during the cutting process. In this paper, a virtual plane cutting method based on collision detection is proposed. The position of virtual tool and virtual liver is obtained through collision detection. At the same time, the triangular surface of the model is optimized according to delauney characteristics, and the degenerated triangle and deformed triangle are eliminated, so that the physical characteristics of virtual liver are closer to the real situation. The construction and optimization of the cutting surface were studied. The cutting surface could be generated in real time during the cutting process, and the refresh rate in the experiment was up to 297Hz on average. The comparison between this method and the ordinary method shows that the method proposed in this paper has good real-time performance and stability, can effectively eliminate the degenerate triangle, and effectively improve the authenticity and physical characteristics of the cutting simulation.