A medical three-dimensional surface scanning system accuracy detection phantom device and evaluation method

A scanning system and precision detection technology, applied in the field of medical optics, can solve the problems of insufficient consideration of facial surface types and eigenvalues

Active Publication Date: 2017-10-03
AFFILIATED STOMATOLOGICAL HOSPITAL OF NANJING MEDICAL UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing phantom does not fully consider the surface geometric parameters and morphological feature information of the human face, especially the facial surface type and eigenvalues.

Method used

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  • A medical three-dimensional surface scanning system accuracy detection phantom device and evaluation method
  • A medical three-dimensional surface scanning system accuracy detection phantom device and evaluation method
  • A medical three-dimensional surface scanning system accuracy detection phantom device and evaluation method

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Experimental program
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Effect test

Embodiment 1

[0026] Facial curvature feature detection

[0027] The facial curvature characteristic components with the surface curvatures of 0.1, 0.3, 0.5, 0.7 and 0.9 are assembled in the grooves of different vertical rows on the phantom support, and the characteristic components with the same width and curvature are installed in the same vertical row. Assemble the bracket with the components installed on the angle controller. Place the phantom in the center of the shooting area of ​​the facial scanning system for shooting, then turn the angle controller 10 degrees clockwise to shoot again, and turn the angle controller 18 times clockwise to take a total of 18 results, namely The shooting results of gaps of the same sequence in different spatial positions can be obtained. The phantom is photographed by a three-dimensional facial scanning system that requires precision detection, and the result of the photographed three-dimensional digital phantom is obtained. An example of the result o...

Embodiment 2

[0029] Facial Fissure Feature Detection

[0030] Assemble facial fissure feature components with facial fissure widths of 8mm, 9mm, 10mm, and 11mm into grooves in different vertical columns on the phantom support, and install feature components with the same width and curvature in the same vertical column. Assemble the bracket with the components installed on the angle controller. Place the phantom in the center of the shooting area of ​​the facial scanning system for shooting, then turn the angle controller 10 degrees clockwise to shoot again, and turn the angle controller 18 times clockwise to take a total of 18 results, namely The shooting results of gaps of the same sequence in different spatial positions can be obtained. The phantom is photographed by a three-dimensional facial scanning system that requires precision detection, and the result of the photographed three-dimensional digital phantom is obtained. An example of the result of a shot using some kind of 3D facia...

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Abstract

The invention discloses a medical three-dimensional surface scanning system accuracy detection phantom device and a related evaluation method. The phantom can be used to evaluate the accuracy of reconstruction of human facial features. The phantom includes a phantom frame, multiple facial feature components and an angle controller. The present invention is used in the analysis and evaluation of the reconstruction accuracy of the medical three-dimensional surface scanning system, which has the characteristics of simple structure, strong practicability, and high flexibility. Quality assurance and quality control provide effective means.

Description

technical field [0001] The invention belongs to the application field of medical optics, and relates to quality evaluation and quality control of a medical three-dimensional surface scanning system, in particular to a design and evaluation method of a medical three-dimensional surface scanning surface accuracy detection phantom. Background technique [0002] In recent years, with the development of image technology and the continuous update of clinical auxiliary diagnostic equipment, the emergence, innovation and promotion of optical-based human body / face shooting technology equipment have provided favorable conditions for the development of clinical medicine, especially oral and frontal medicine. This technology has become one of the indispensable optical image detection and analysis methods for clinical diagnosis. The introduction and application of this technology in medicine has realized the quantitative analysis of complex surfaces that were technically difficult to ach...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A61B5/00A61B5/107
Inventor谢理哲严斌胡轶宁杨宇王林高鹏程陈雅丽
OwnerAFFILIATED STOMATOLOGICAL HOSPITAL OF NANJING MEDICAL UNIV