Three-dimensional model forming method in three-dimensional printing method, and the three-dimensional printing method

Abstract

The invention relates to the technical field of 3D printing, in particular to a three-dimensional model forming method in a 3D printing method and the 3D printing method, and the three-dimensional model forming method is used for forming a three-dimensional model of a target substance in an object. The method comprises the following steps: carrying out tomographic scanning on the object to obtaina plurality of tomographic images of the object; decoloring the plurality of tomographic images to obtain gray tomographic images; scanning and analyzing the plurality of gray tomographic images, anddetermining a selection threshold of the target substance in the gray tomographic images; according to the selection threshold, carrying out batch processing on the plurality of gray tomographic images, removing image information outside the area determined by the selection threshold in each tomographic image, and obtaining a plurality of tomographic images of the target substance; and generatingthe three-dimensional model of the target substance according to reverse scanning of the plurality of tomographic images of the target substance. By using the method, the model can be conveniently formed by using the tomographic images in a bitmap format, and the three-dimensional model of the target substance can be directly formed.

Description

technical field [0001] The present application relates to the technical field of 3D printing, in particular to a method for forming a three-dimensional model in a 3D printing method and a 3D printing method. Background technique [0002] With the emergence of tomographic imaging equipment such as computer tomography (CT), magnetic resonance (Magnetic Resonance Imaging, MRI) and ultrasound, people have been able to obtain tomographic images of human organs and three-dimensional objects conveniently. The image information of the human body or three-dimensional object at a certain level provided by the tomographic image provides reliable information for in-depth understanding of the internal tissue structure and morphological details of the three-dimensional object. 3D model reconstruction based on tomographic images has broad application prospects in medical 3D reconstruction, virtual visual surgery, reverse engineering and other fields. [0003] Generally speaking, the forma...

AI Technical Summary

Problems solved by technology

However, due to some special circumstances, such as the output limitation of CT equipment, only CT images in bitmap format can be obtained, which has caused technical difficulties for 3D restoration

In the prior art, no effective method has been found to form a 3D model using tomographic images in bitmap format

[0004] In particular, CT scan images contain complete images of objects or human tissue, but in actual modeling requirements, only the 3D model of the specified material is needed, such as CT scan images of the human body, including images of various soft tissues and bones. In , only a 3D model of the skeleton needs to be formed, which is more difficult to obtain using existing technologies

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