Bowers C M, Johansen R J
Ventura County Medical Examiner's Office, Ventura, California, USA.
Dent Clin North Am. 2001 Apr;45(2):327-42, ix.
This article introduces the dental investigator to the basic concepts of digital imaging techniques as they apply to crime scene photographic evidence. In all aspects of forensic dentistry, analytical comparison methods demand rigorous attention to scale dimensions and the detection of photographic distortion in images of forensic interest. Dental radiographs, photographic slides, negatives, prints, and digital images are all amenable to digital techniques that are useful in controlling quality and expanding the abilities of the forensic dentist to compare known and questioned evidence. The intent of this article is to show accurate means of measuring physical parameters of dental evidence, correction of common photographic distortion and size discrepancies, elimination of examiner subjectivity, better control of image visualization, and standardization of comparison procedures.
本文向牙科调查人员介绍数字成像技术的基本概念，这些技术应用于犯罪现场的摄影证据。在法医牙科学的各个方面，分析比较方法要求严格关注比例尺寸以及检测具有法医意义图像中的摄影失真。牙科X光片、幻灯片、底片、照片和数字图像都适用于数字技术，这些技术有助于控制质量，并扩展法医牙医比较已知和可疑证据的能力。本文旨在展示测量牙科证据物理参数的准确方法、校正常见的摄影失真和尺寸差异、消除检查人员的主观性、更好地控制图像可视化以及使比较程序标准化。
