A Palatal Wrinkle Recognition Method Using Uniform Slicing and Inflection Point Feature Extraction

Abstract

The invention belongs to the technical field of forensic identification of human biometric features, and the specific technical scheme is as follows: a palatal wrinkle identification method using uniform slice and inflection point feature extraction, and the specific steps are: first, obtaining three-dimensional palatal wrinkle data; The data is uniformly sliced, and data preprocessing is performed on all slices to obtain the coordinate sequence of the palatal fold tangent; 3. Extract the inflection point and corner features of the palatal fold tangent of each slice, and the coordinate positions, inflection points and corners of all palatal fold tangents together form the palatal fold. 4. Compare the test sample features with the features in the sample feature library one by one, and output the matching results; the method of uniform slice and inflection point feature extraction proposed by this method makes up for the lack of existing three-dimensional palatal wrinkle data identification methods. problem, the recognition effect is considerable.

Description

technical field [0001] The invention belongs to the technical field of forensic identification of human biometric features, in particular to a palatal wrinkle identification method using uniform slice and inflection point feature extraction. Background technique [0002] Identical identification is a forensic cognitive activity to infer whether the object under study comes from the same object through the comparison and identification of the similarities and differences between two or more characteristic indicators of the known and unknown objects. The characteristic indicators used in the same identification must meet the conditions of uniqueness, universality, permanence, collectability and identifiability. At present, with the rapid development of modern forensic science and artificial intelligence technology, some inherent physiological characteristics of human beings (such as teeth, craniofacial morphology, fingerprints, palm prints, DNA, etc.) have become important ind...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the deficiencies of the existing three-dimensional palatal wrinkle recognition technology, and provides a palatal wrinkle recognition method using uniform slices and inflection point extraction for forensic identification. The processing process is easy to understand and the recognition effect is good

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