Method for carrying out digital dentistry color matching through multi-view camera

Abstract

The invention provides a method for carrying out digital dentistry color matching through a multi-view camera. The method comprises the steps of automatically completing color matching work through color matching steps of lighting, separating and meshing, extracting an average gray value, positioning coordinates, obtaining a difference, carrying out fitting analysis, filtering a signal, carrying out morphological operation, and positioning defect spots; adopting color image RGB (Red, Green, Blue) color numbers for carrying out digital analysis and comparison on an acquired image, and reflecting with a color number and comparing sampled colors without the need for comparing through human eyes; meshing and analyzing the image, and expressing digital colors in fine mesh grids, so that color changes on different areas on teeth can be expressed in details; adopting two symmetrical industrial cameras for sampling, comparing and compensating two images, and optimizing a shadow effect producedby the directivity of rays of light.

Description

technical field [0001] The invention relates to the field of dentistry, in particular to a method for digital dental color comparison through a multi-eye camera. Background technique [0002] Dental color comparison is an important part in the processing and testing of dental implants. Before the coloring of the implants, the color of the natural teeth should be compared, and after the processing of the dental implants, it should be tested. On the other hand, dental colorimetry is also an important basis for oral diagnosis. Accurate colorimetry can improve the basis for patient diagnosis. However, due to the unique personality of natural teeth, the current dental colorimetric technology cannot completely restore its color. The research on dental colorimetric technology, which not only ensures that the color of implant teeth is consistent with the color of real teeth, has an important position in the oral health industry. [0003] The utility model patent No. 201120434523.9...

AI Technical Summary

Problems solved by technology

[0004] However, the colorimetric techniques of the above methods all use the doctor's human eyes for comparison in the final colorimetric stage, and the degree of digitization is low, which will increase the interference factors of human eye errors

The above-mentioned dental color comparisons basically belong to the overall range of color comparisons. No partitions or too few partitions can reflect details such as color transitions on teeth, and cannot effectively guide the coloring process of dental implants.

The above methods all use ordinary image collection, which cannot optimize and process lighting and shadows, and cannot identify and locate color defects.

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