Tooth identification method, device and system

An identification method and tooth technology, applied in the field of image processing, can solve the problems of slow tooth whitening processing speed and low accuracy

Active Publication Date: 2017-02-22
北京贝塔科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides a tooth identification method, device and system to overcome the problems of relatively slow processing speed and low accuracy of electronic equipment for tooth whitening in the prior art

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  • Tooth identification method, device and system
  • Tooth identification method, device and system

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Embodiment Construction

[0080] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0081] see figure 1 , which is a schematic flowchart of a tooth identification method provided in the embodiment of the present application, the method includes:

[0082] Step S101: Obtain the coordinates of lip feature points from the image to be recognized.

[0083] The coordinates of the feature points of the lips include the coordinates of the feature points of the outer contour of the lips and the coordinates of the feature points of the inner contour of...

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Abstract

The embodiment of the invention provides a tooth identification method, device and system. The method comprises the following steps of: according to the obtained coordinates of lip feature points, determining a target image which comprises teeth to obtain the approximate area of the teeth; combining with a characteristic that the teeth are bright on a luminance channel, converting the target image into a preset color space of which the luminance detection is sensitive; on the basis of a luminance grayscale image and a first masking grayscale image, obtaining a second masking grayscale image; on the basis of a chromaticity image and a saturability image, obtaining a lip probability image; and finally, on the basis of the second masking grayscale image and the lip probability image, obtaining a third masking grayscale image, wherein the pixel value of a tooth part in the third masking grayscale image has an obvious difference with pixel values on other positions, and an area which is formed by the pixels of which the pixel values are greater than or equal to a third preset value in the third masking grayscale image as a tooth area. Therefore, a purpose that the teeth can be quickly and accurately identified is realized.

Description

technical field [0001] The present application relates to the technical field of image processing, and more specifically relates to a tooth recognition method, device and system. Background technique [0002] In portrait beauty based on image processing, teeth whitening can make portraits more expressive. Because it is difficult to accurately identify the tooth area, the tooth whitening method in the prior art is: the user manually selects the tooth area in the image, and then performs tooth whitening on the selected tooth area. [0003] Due to the small area of ​​the teeth in the image and the influence of factors such as lips and gums, it is difficult for the user to accurately select the tooth area. The selected tooth area takes a long time and is inaccurate, resulting in slower processing speed for electronic equipment for tooth whitening. Slow and less accurate. [0004] Therefore, there is a need for a fast and accurate tooth identification method in the prior art. ...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/162G06V40/165
Inventor 张勇何茜
Owner 北京贝塔科技有限公司
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