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Panoramic image acquisition method and system for oral cbct image

A technology of panoramic image and acquisition method, applied in the field of image processing, can solve the problem that the panoramic image does not conform to the visual observation characteristics of the human eye, etc., and achieve the effect of high accuracy

Active Publication Date: 2018-04-06
深圳傲美未来医疗科技有限公司
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Problems solved by technology

[0004] Based on this, it is necessary to provide a panoramic image acquisition method and system for oral CBCT images in order to solve the technical problems that the traditional solutions tend to cause the acquired panoramic images not to conform to the characteristics of human visual observation.

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  • Panoramic image acquisition method and system for oral cbct image
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[0032] The specific implementation of the method and system for acquiring panoramic images of oral cavity CBCT images of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] refer to figure 1 , figure 1 Shown is a flow chart of a panoramic image acquisition method of an oral CBCT image of an embodiment, including the following steps:

[0034] S10, selecting a two-dimensional oral cavity CBCT image containing a tooth structure image as a target two-dimensional image from a plurality of continuous two-dimensional oral cavity CBCT images;

[0035] The above two-dimensional oral cavity CBCT images are a plurality of continuous two-dimensional pictures of the oral cavity structure to be acquired panoramic images, that is, the first two-dimensional oral cavity CBCT image corresponds to the plane image of one end of the oral cavity structure, and the second two-dimensional oral cavity CBCT image corresponds to A planar imag...

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Abstract

The invention relates to a panoramic image acquisition method and system for oral cavity CBCT images. The panoramic image acquisition method for the oral cavity CBCT images comprises the steps that a two-dimensional oral cavity CBCT image containing a tooth structure image is selected from multiple continuous two-dimensional oral cavity CBCT images to serve as a target two-dimensional image; a dental arch curve is recognized on the target two-dimensional image, and dental arch curves of all the two-dimensional oral cavity CBCT images are determined according to the dental arch curve on the target two-dimensional image; equidistant sampling is performed on the dental arch curves of all the two-dimensional oral cavity CBCT images to obtain multiple sampling points on all the two-dimensional oral cavity CBCT images, and the sampling points at the same position on all the two-dimensional oral cavity CBCT images are determined as one group of sampling points; a sampling matrix corresponding to each group of sampling points is acquired, weighted forward projection operation is performed on each sampling matrix, and multiple weighted matrixes are obtained; and all the weighted matrixes are spliced according to order, and a panoramic image of the oral cavity CBCT images is acquired according to the splicing result.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a panoramic image acquisition method and system for oral cavity CBCT images. Background technique [0002] The cone-beam X-ray computed tomography equipment (oral CBCT for short) used in the oral cavity performs image reconstruction through the projection data collected from the circumference of the human oral cavity and other areas at various angles, and can obtain a series of axial plane images, referred to as CBCT images. Three-dimensional images are arranged along the direction perpendicular to the paper surface. Using CBCT images, a panorama (also known as a tomogram) can be obtained through image processing methods, which is beneficial for doctors to diagnose dental diseases through CBCT images and panoramic images. The basic principle of CBCT to generate a panorama is: draw a curve C along the tooth arrangement direction on a certain layer of CBCT image, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T3/40G06T7/00
CPCG06T3/4038G06T7/0012G06T2207/10081G06T2207/30036
Inventor 詹欣智齐宏亮李翰威吴书裕骆毅斌王浩文
Owner 深圳傲美未来医疗科技有限公司
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