Method for directly performing three-dimensional model transformation with three-dimensional bench marks

Abstract

The invention relates to a method for using three-dimensional mark point directly to do three-dimensional model deformation in the field of image processing technology. It comprises the following steps: 1)normalizing the top point data at the range of [-1ú¼1], using a cube with the edge length 2 to limit it; 2) transferring the screen obtained points into boundary beacon, complementary operating the screen obtained Y coordinate, reading the current frame buffer in the internal memory, at last computing the three-dimensional coordinate point; 3) preserving the three-dimensional mark points, obtaining another model corresponding position mark point; 4) using thin plate stripe bracketing method to do elastic deformation, using the three-dimensional points to displace the two-dimensional points to directly obtain the new coordinate.

Description

technical field [0001] The invention relates to a method in the technical field of image processing, in particular to a method for directly deforming a three-dimensional model by using three-dimensional marker points. Background technique [0002] As a very important medium and means, image has been paid more and more attention by people. Image has become one of the subjects in engineering, computer science, information science, statistics, physics, chemistry, biology, medicine and even social science. objects of study and research. Warping is a relatively common method in computer graphics, which is mainly used for registration of images or graphics. At present, the elastic deformation of two-dimensional images has been developed rapidly, including optical flow, resampling, thin plate spline, B-spline and other algorithms. There are also many classifications in global and local deformation, making the current deformation more detailed. ,reality. But for the deformation o...

AI Technical Summary

Problems solved by technology

[0004] Such expansion is more suitable for the ideal cylindrical model, but distortion is inevitable

If it is not an ideal cylinder, the obtained two-dimensional image will overlap, and when it is restored again, part of the information of the model will be lost, and the effect is not ideal

At the same time, since the expansion and restoration require a lot of computing time, the computing efficiency is not simple, and the online performance is greatly reduced.

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