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首页> 外文期刊>Journal of forensic sciences. >Computer-based production of comparison overlays from 3D-scanned dental casts for bite mark analysis.
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Computer-based production of comparison overlays from 3D-scanned dental casts for bite mark analysis.

机译:基于计算机的3D扫描牙模的比较覆盖物生产,用于咬痕分析。

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摘要

Bite mark analysis assumes the uniqueness of the dentition can be accurately recorded on skin or an object. However, biting is a dynamic procedure involving three moving systems, the maxilla, the mandible, and the victim's reaction. Moreover, bite marks can be distorted by the anatomic location of the injury or the elasticity of the skin tissue. Therefore, the same dentition can produce bite marks that exhibit variations in appearance. The complexity of this source of evidence emphasizes the need for new 3D imaging technologies in bite mark analysis. This article presents a new software package, DentalPrint (2004, University of Granada, Department of Forensic Medicine and Forensic Odontology, Granada, Spain) that generates different comparison overlays from 3D dental cast images depending on the pressure of the bite or the distortion caused by victim-biter interaction. The procedure for generating comparison overlays is entirely automatic, thus avoiding observer bias. Moreover, the software presented here makes it impossible for third parties to manipulate or alter the 3D images, making DentalPrint suitable for bite mark analyses to be used in court proceedings.
机译:咬痕分析假设牙列的唯一性可以准确记录在皮肤或物体上。但是,咬合是一种动态过程,涉及三个移动系统,即上颌骨,下颌骨和受害者的反应。此外,咬痕会因受伤的解剖位置或皮肤组织的弹性而变形。因此,相同的牙列可产生外观上变化的咬痕。此证据来源的复杂性强调了咬痕分析中需要新的3D成像技术。本文介绍了一种新的软件包DentalPrint(2004年,西班牙格拉纳达格拉纳达大学法医学和法医齿学系,西班牙),该软件根据咬合的压力或由牙合引起的变形,从3D牙科铸件图像生成不同的比较覆盖图。受害者与受害者的互动。生成比较覆盖图的过程是完全自动的,因此避免了观察者的偏见。此外,此处提供的软件使第三方无法操纵或更改3D图像,从而使DentalPrint适用于法庭诉讼中的咬痕分析。

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