Three-dimensional model forming method and 3D printing method in 3D printing method

Abstract

It relates to the technical field of 3D printing. This application relates to a 3D model forming method in a 3D printing method and a 3D printing method. The 3D model forming method is used to form a 3D model of a target substance in an object; including: performing tomographic scanning on the object, obtaining A plurality of tomographic images of the object; decolorizing the plurality of tomographic images to obtain a gray-scale tomographic image; scanning and analyzing the plurality of gray-scale tomographic images to determine the selection threshold of the target substance in the gray-scale tomographic image; according to the Selecting a threshold to batch process multiple grayscale tomographic images, removing image information outside the area determined by the selection threshold in each tomographic image, and obtaining multiple tomographic images of the target substance; according to the multiple tomographic images of the target substance The reverse scan generates a 3D model of the target substance. The tomographic image in bitmap format can be conveniently used to form a model, 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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