A Method for Predicting Tooth Color Selection Based on Linear Regression
A linear regression, tooth technology, applied in the field of oral prosthodontics, can solve problems such as tooth color estimation error
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[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0045] like Figure 1~2 As shown, the present embodiment provides a linear regression-based tooth color selection method, including the following steps:
[0046]Step S1: Taking the tooth color value of the tester as the object, determine the eigenvector that affects the tooth color value of each tooth of all testers, and use matrix X to represent the eigenvalues that affect the tooth color value of each tooth of all testers, matrix X Expressed as:
[0047] ;
[0048] in, is the eigenvector of the i-th tooth affecting all testers, m is the number of tests for each tester's teeth, ,in, Indicates the k1th eigenvalue of the i-th tooth, n1 is the characteristic number; i, k1, and n1 are all positive integers;
[0049] Step S2: Determine the linear regression coefficient vector of each tester, the dimension of the linear regression coeff...
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