3D Reconstruction of Medical Image Based on Improved Ray Casting Algorithm

Although the traditional volume rendering ray casting algorithm has become one of the mainstream methods of medical image three-dimensional (3D) reconstruction, the 3D image quality and rendering speed still can not meet the requirements of high-definition and real-time in clinical medical diagnosis. In this paper, a fusion ray casting algorithm is proposed, which uses the improved resampling interpolation algorithm and the improved bounding box algorithm to improve the image rendering speed, and the improved data synthesis of sampling points is used to improve image quality in ray casting algorithm. The experimental results show that the method proposed in this paper can not only improve the speed of reconstruction, but also greatly improve the image quality of 3D reconstruction.