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数字时代的图像分辨率：概念与临床意义。

Image resolution in the digital era: notion and clinical implications.

作者信息

Rakhshan Vahid

机构信息

Iranian Tissue Bank and Research Center, Tehran University of Medical Sciences, Dept. of Dental Anatomy and Morphology, Dental Branch, Islamic Azad University, Tehran, Iran.

出版信息

J Dent (Shiraz). 2014 Dec;15(4):153-5.

PMID:25469352
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4247836/
Abstract

Digital radiographs need additional metadata in order to be accurate when being converted to analog media. Resolution is a major reason of failures in proper printing or digitizing the images. This letter shortly explains the overlooked pitfalls of digital radiography and photography in dental practice, and briefly instructs the reader how to avoid or rectify common problems associated with resolution calibration of digital radiographs.

摘要

数字射线照片在转换为模拟介质时需要额外的元数据才能保证准确性。分辨率是图像正确打印或数字化失败的主要原因。本文简要解释了牙科实践中数字射线摄影和摄影中被忽视的陷阱，并简要指导读者如何避免或纠正与数字射线照片分辨率校准相关的常见问题。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/953f/4247836/f95343922cbd/jds-15-153-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/953f/4247836/f95343922cbd/jds-15-153-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/953f/4247836/f95343922cbd/jds-15-153-g001.jpg

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本文引用的文献

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The modulation transfer function and signal-to-noise ratio of different digital filters: a technical approach.不同数字滤波器的调制传递函数和信噪比：技术方法。
Dentomaxillofac Radiol. 2011 May;40(4):222-9. doi: 10.1259/dmfr/33029984.
2
Developing an automatic lateral cephalometric landmark identification program and evaluating its performance.开发一个自动的头颅侧位标志点识别程序并评估其性能。
Int J Comput Dent. 2009;12(4):327-43.
3
Modulation transfer function evaluation of cone beam computed tomography for dental use with the oversampling method.
相机镜头和牙科专业对微笑美学认知的影响。
J Orthod Sci. 2015 Oct-Dec;4(4):97-101. doi: 10.4103/2278-0203.173426.
采用过采样方法评估口腔锥形束 CT 的调制传递函数。
Dentomaxillofac Radiol. 2010 Jan;39(1):28-32. doi: 10.1259/dmfr/27069629.
4
Effects of scintillator on the modulation transfer function (MTF) of a digital imaging system.闪烁体对数字成像系统调制传递函数（MTF）的影响。
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2005 May;99(5):608-13. doi: 10.1016/j.tripleo.2004.08.013.
5
Physical performance measures of radiographic imaging systems.射线照相成像系统的物理性能测量
Dentomaxillofac Radiol. 1997 May;26(3):139-46. doi: 10.1038/sj.dmfr.4600241.