Electronic plane bow method based on multi-view computer vision

A computer vision and electronic technology, applied in the field of digital medicine, can solve the problems of difficulty in carrying equipment, limited information expression, high equipment price, etc., and achieve the effect of strong practical value, high robustness, and rapid calculation.

Pending Publication Date: 2022-05-17
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional facebow technology requires the use of sophisticated mechanical devices, which are complicated to operate, difficult to carry, and limited in expressing information; while the existing electronic f...

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  • Electronic plane bow method based on multi-view computer vision
  • Electronic plane bow method based on multi-view computer vision
  • Electronic plane bow method based on multi-view computer vision

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] like figure 1 , The present invention provides a method for restoring the movement trajectory of the upper and lower jaws of a human body using multiple cameras, comprising the steps of: rigidly connecting markers, multi-camera data collection, movement data processing, and movement trajectory visualization.

[0045] 1. Before image acquisition, it is necessary to use a variety of electronic devices to obtain data information of the human head to model the skull. The data information includes but is not limited to oral scan images containing oral information, face scan images containing facial information, and CBCT image data.

[0046] Specifically, when performing the first step of rigidly connecting markers, the marker pattern used is as follows figure 2 As shown, each small square represents a logo pattern, which is repre...

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Abstract

The invention discloses an electronic plane bow method based on multi-view computer vision. The method comprises the following steps: 1) rigidly connecting markers, wherein the markers are rigidly connected with upper and lower dentitions of a patient; 2) multi-camera video data acquisition: aligning a plurality of cameras to dentition and markers from different angles, and acquiring motion videos of the markers and teeth; 3) motion trail data processing: simplifying an image of the same frame of each camera into a least square optimization problem, and solving to obtain more accurate marker position information; and 4) visualizing the motion trail, converting the motion trail data of the marker, applying the converted motion trail data to the three-dimensional skull lower jawbone model to obtain a reconstructed human head dynamic virtual occlusion action, and rendering and outputting the reconstructed human head dynamic virtual occlusion action to a screen. The method is based on multi-camera computer vision, the moving tracks of the upper and lower jaw joints are captured, and accurate dynamic virtual occlusion simulation is achieved.

Description

technical field [0001] The invention belongs to the field of digital medical treatment, and in particular relates to an electronic face bow method based on multi-eye computer vision, which uses computer vision technology to dynamically simulate the occlusal movement of upper and lower jaws and joints. Background technique [0002] Electronic facebow is a technology that uses digital technology to simulate the movement of human jaws and joints. It has a very good auxiliary effect on the diagnosis of jaw joint diseases, tooth restoration and orthodontics. Traditional facebow technology requires the use of sophisticated mechanical devices, which are complicated to operate, difficult to carry, and limited in expressing information; however, the existing electronic facebow technologies all belong to foreign medical device companies, and most of them use sensor solutions, using optical sensors, motion sensors, etc. To collect jaw movement data, the price of equipment is extremely ...

Claims

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Application Information

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IPC IPC(8): G16H30/40G06T7/20
CPCG16H30/40G06T7/20G06T2207/10016G06T2207/30036G06T2207/30241
Inventor 林海赵宴锋
Owner ZHEJIANG UNIV
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