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Auricle defect measurement method based on optical three-dimensional measurement

A technology of three-dimensional measurement and measurement method, applied in the field of image processing, which can solve problems such as inconvenient electronic filing of results, nonlinear distortion of the lens, poor consistency, etc., and achieve easy filing and inspection, high reliability and repeatability, and consistency good sex effect

Active Publication Date: 2018-03-09
WUHAN POWER3D TECH
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Problems solved by technology

[0004] These two methods are widely used in clinical identification because of their simplicity and ease of use, but because they are mainly manual operations, the consistency is poor, and the camera shooting results have nonlinear distortion of the lens, and the results are not convenient for electronic filing. Therefore, there is a need for a more accurate and automated method to measure auricle defects

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  • Auricle defect measurement method based on optical three-dimensional measurement
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  • Auricle defect measurement method based on optical three-dimensional measurement

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[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0031] The auricle defect measurement method based on optical three-dimensional measurement provided by the present invention identifies the auricle defect by introducing the optical three-dimensional measurement method, and uses the solution method of the maximum projected area of ​​the auricle point cloud to obtain accurate defect ratios and disability identification results . The process flo...

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Abstract

The invention belongs to the technical field of image processing and discloses an auricle defect measurement method based on optical three-dimensional measurement. The method comprises the steps as follows: complete point cloud data of auricles on two sides of a test object are acquired with a structured light three-dimensional measurement method; the measured point cloud data are spliced and point cloud is unified under one three-dimensional coordinate system; the spliced auricle point cloud is segmented under the three-dimensional coordinate system, and complete auricles are segmented from the point cloud data; the segmented point cloud data are projected to a plane for establishment of outer contours, point cloud projection areas are acquired, and the maximum point cloud projection areas are obtained through iterative optimization; the maximum projection areas of the auricles on two sides of the test object are divided, and the auricle defect ratio is obtained. The structured lightthree-dimensional measurement technology is introduced into the auricle defect identification field in the method, a high-speed three-dimensional measurement technology and a data processing method proposed for auricle defect identification are combined, and automation of the auricle defect measurement method is realized.

Description

technical field [0001] The invention belongs to the technical field of image processing, and more particularly relates to an auricle defect measurement method based on optical three-dimensional measurement. Background technique [0002] In forensic clinical diagnosis, identification of auricle defect disability grade is an important and common item. The percentage of auricle area defect is the main basis for the grade of auricle disability and defect. In clinical identification, forensic doctors often use the ratio of the largest projected area of ​​the affected side to the healthy side of the auricle as the value of the defect percentage. [0003] The following two methods are often used in forensic clinics to measure the proportion of auricle defects: (1) thin film tracing method; (2) photographic pixel method. The film tracing method covers the auricle with a square transparent film, manually traces the contour of the auricle, and estimates the area of ​​the auricle by c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/107
CPCA61B5/1077A61B5/1079
Inventor 李中伟詹国敏钟凯
Owner WUHAN POWER3D TECH
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