Direct Interpolation Algorithm Based on Corresponding Points in Rotary Scanning Serial Ultrasound Image

The rotating scanning imaging method leads to the result that the spatial resolution of the pixels in the fault is greater than that between the faults, which seriously affects the quality of 3D reconstruction. In this paper, we compared several interpolation methods and proposes an improved method based on the law of similar gray value of fault-related voxels, i.e. the characters of the approximate continuous distribution of gray information in three-dimensional space. The neighborhood window is taken on the two-dimensional image where the two adjacent points are located, and the average gray value of all the pixels in the window is used to replace the two. The point gray value method is used for interpolation, and the random irregular sampling ultrasonic image sequence with angular difference is converted into parallel image sequences. The experimental results show that the method can obtain clear regular volume data, realize the standardization of image data and lay a good foundation for 3D reconstruction of ultrasound images.