Tooth-based gender inference method, system and device and storage medium

Abstract

The invention discloses a tooth-based gender deduction method, system and device and a storage medium, and the method comprises the steps: obtaining a CBCT image (Cone-beam CT, CBCT) of a target sample tooth; measuring three-dimensional information of the teeth according to the CBCT image; performing difference and correlation test on the three-dimensional information of the teeth and the real gender to obtain correlation parameters with gender difference and gender correlation; and establishing a sex determination model according to the correlation parameters. According to the invention, data measurement based on CBCT is adopted, so that more tooth three-dimensional information can be obtained. According to the method, the tooth volume is adopted as an identification object, the three-dimensional form information of the whole tooth is segmented, the influence of information such as adjacent teeth is reduced to a certain extent, and the identification accuracy is improved.

Description

technical field [0001] The invention belongs to the field of medical identification, and relates to a tooth-based gender estimation method, system, device and storage medium. Background technique [0002] Individual identification occupies a very important position in the practice of forensic science, such as the individual identification of unidentified corpses in criminal cases or the remains of corpses in tsunami and air crashes. Since gender identification can greatly simplify the process of individual identification, it is of great significance in forensic science. There are many methods of gender identification, including the measurement and analysis of bones and teeth such as hip bones, skulls, and mandibles. Among them, teeth, as the hardest tissue in the human body, can still preserve a relatively complete shape and structure in harsh environments; on the other hand, most of the genes that determine the size of teeth exist in sex chromosomes, making the shape of te...

AI Technical Summary

Problems solved by technology

[0007] 1. Due to racial differences, different groups of people have differences in the correlation between tooth development and shape and gender, so different groups of people need specific equations for gender identification

[0008] 2. Although tooth information in two-dimensional images can be used for gender identification, previous studies have shown that its accuracy is not good, and this method has complex operations, less information, and measurement results are easily affected by shooting techniques and angles in forensic practice Issues such as impact, relatively few applications

Although there are many studies on this method, there are problems such as complicated operation, inconvenient model storage, and inability to obtain alveolar bone information.

[0010] 4. Most of the previous studies were based on manual measurements such as models and photos, which had the disadvantages of strong subjectivity, low repeatability, and poor accuracy

Images