Byng J W, Critten J P, Yaffe M J
Department of Medical Biophysics, Imaging Research, University of Toronto, Canada.
Radiology. 1997 May;203(2):564-8. doi: 10.1148/radiology.203.2.9114122.
A digital postprocessing technique was used to compensate for the limitations of laser film or cathode-ray-tube devices used to display digital mammograms. An algorithm identified and equalized for the large change in digital signal caused by the reduction in thickness at the margin of the compressed breast. The resulting images reflected only breast composition, and so the number of gray levels needed to display the processed image was greatly reduced, which facilitated presentation and analysis.
一种数字后处理技术被用于弥补用于显示数字乳腺X线照片的激光胶片或阴极射线管设备的局限性。一种算法识别并均衡了由于压缩乳房边缘厚度减小而导致的数字信号的大幅变化。所得图像仅反映乳房成分，因此显示处理后图像所需的灰度级数大大减少，这便于呈现和分析。
