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Craniofacial shape measuring device and method for measuring craniofacial shape

A measuring device and morphological technology, which is applied in diagnostic recording/measurement, medical science, complex mathematical operations, etc., can solve the problems of large measurement error and low efficiency, and achieve the effect of improving measurement efficiency

Inactive Publication Date: 2008-08-06
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of large contact measurement errors and low efficiency in the prior art, the present invention provides a craniofacial shape measurement device, which uses a laser three-dimensional scanner to obtain a craniofacial three-dimensional data model to achieve non-contact measurement

Method used

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  • Craniofacial shape measuring device and method for measuring craniofacial shape
  • Craniofacial shape measuring device and method for measuring craniofacial shape
  • Craniofacial shape measuring device and method for measuring craniofacial shape

Examples

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Embodiment 1

[0022] Example 1. Referring to FIG. 1 , the present invention includes a laser three-dimensional scanner 21 , a rotary table 22 , a bracket 23 , a slider 24 , a slide rail 25 and a seat 26 . The slide rail 25 is placed in a 3×6m studio, and the ground is required to be flat and clean. The inner diameter of the slide rail 25 is 2m, the outer diameter is 2.4m, and the height is 0.2m; the slide block 24 is a U-shaped block matched with the slide rail 25, which is stuck on the slide rail 25 and can move 360° along the slide rail; The slide block 24 is fixedly connected with a bracket 23, and the bracket 23 is fixedly connected with a rotary table 22. The laser three-dimensional scanner 21 is placed on the rotary table 22, and the seat 26 is fixed on the ground at the center of the slide rail 25, facing the slide rail 25. The position of the 0 scale line, and its height can be adjusted to ensure that different human craniofacials are at the same vertical height. Slide rail 25 cir...

Embodiment 2

[0023] Example 2. With reference to Fig. 2, adopt embodiment 1 craniofacial shape measurement device to measure the method for craniofacial shape, concrete operation steps are as follows:

[0024] Arrange the subject's hair so that the craniofacial face and ears are completely exposed without covering. Parts such as the eyebrows and hair at the sideburns are powdered, or a dark headgear is worn to prevent these parts from absorbing the laser light and forming hollows. Those who wear glasses must take off their glasses, and those who wear hats must take off their hats.

[0025] The measured person sits on the seat 26, and adjusts the height of the seat 26 up and down according to the horizontal height of the measured person's craniofacial region, so that the measured person's craniofacial region is on the same level as the laser three-dimensional scanner 21, keeping The head is in a natural position. First slide the slider 24 to the position of the 0-degree scale line of the ...

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Abstract

The invention discloses a measuring device for measuring craniofacial shape, which comprises a seat and is characterized in that the measuring device also comprises a laser triplex scanner, a turn table, a bracket, a sliding block and a slide track. The slide track is positioned on the ground of a workroom; a U-shaped slot on the sliding block is matched with the slide track, and is clamped and positioned on the slide track and is capable of moving 360 degrees around the slide track; the bracket is fixedly connected to the centre above the sliding block; the turn table is fixedly connected to the bracket and the laser triplex scanner is arranged on the turn table; the seat is positioned on the ground where the centre of the slide track locates, facing to the position of 0 graduation of the slide track. The invention also discloses a method for utilizing the measuring device to measure craniofacial shape, craniofacial image data is obtained with the laser triplex scanner to synthesize craniofacial three-dimensional data model which is then measured, thus realizing non-contact measurement.

Description

technical field [0001] The invention relates to a craniofacial shape measuring device and also relates to a method for measuring craniofacial shape with the device. Background technique [0002] Craniofacial morphology is the most complex morphological area on the human body. Correction of craniofacial deformities and upper and lower dentition will eventually manifest as changes in craniofacial morphology. [0003] Refer to Figure 3. The document "Chinese Invention Patent Application No. / Publication No. 200510021748.0 / CN1742676" discloses a human craniofacial three-dimensional measuring device and its measuring method. The measuring device includes a vertical measuring ruler 1, three groups of horizontal rulers 4, 7, 9, three connecting parts 2, 10, 11, two groups of sliding parts 3 and 5, two groups of horizontal micrometers 6 and 8 and medical fine needles, three A group of horizontal rulers 4, 7, and 9 are stuck on the vertical measuring ruler 1 and can move up and down...

Claims

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Application Information

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IPC IPC(8): A61B5/107G06F17/10
Inventor 张艳宁施建宇周洪翟培芳林增刚李映
Owner NORTHWESTERN POLYTECHNICAL UNIV
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