A perceptually tempered display for digital mammograms.
A perceptually tempered display for digital mammograms.
复制标题
数字乳房 X 光检查的感知调节显示。
DOI：
10.1148/radiographics.19.5.g99se191313
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
C. Nodine
中科院分区：
文献类型：
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作者：
H. Kundel;S. Weinstein;E. Conant;L. Toto;C. Nodine
用光度计校准用于数字乳房X线照片的工作站的阴极射线管，以产生与由当前显示标准定义的感知线性曲线类似的输入-输出特性曲线。然后，观察者使用由包含对比度降低的盘的强度增加的条组成的测试图案来估计在不同水平的显示亮度下的最小可检测对比度（MDC）。MDC由抛物线建模。抛物线的形状由观察者的感知反应决定，范围由乳房实质的最大和最小像素值决定。在显示每个乳房X线照片时，自动找到乳房的轮廓，并对乳房图像内的像素进行采样，以确定用于计算最大和最小像素值的像素值。对抛物线进行积分以确定用于乳房X线照片的初始MDC回火显示的查找表。初步的观察者性能测试显示，当MDC回火显示与感知线性显示相比时，三名放射科医生阅读一组乳房X线照片的准确性和速度没有显着差异。
The cathode ray tube of a workstation for use with digital mammograms was calibrated with a photometer to produce an input-output characteristic curve similar to the perceptually linear curve defined by a current display standard. Then, a test pattern consisting of bars of increasing intensity containing disks of decreasing contrast was used by an observer to estimate the minimal detectable contrast (MDC) at different levels of display luminance. The MDC was modeled by a parabola. The shape of the parabola was determined by the observer's perceptual responses, and the range was determined by the maximum and minimum pixel values of the breast parenchyma. As each mammogram was displayed, the contour of the breast was automatically found and pixels within the breast image were sampled to determine the pixel values that were used to compute the maximum and minimum pixel values. The parabola was integrated to determine the look-up table for the initial MDC-tempered display of the mammogram. Preliminary observer performance tests showed no significant differences in the accuracy and speed of three radiologists who read a set of mammograms when the MDC-tempered display was compared with the perceptually linear display.
数字放射学中的图像呈现：新兴DICOM显示功能标准及其应用的视角。
DOI：
10.1148/radiographics.17.3.9153711
发表时间：
1997
期刊：
Radiographics : a review publication of the Radiological Society of North America, Inc.
影响因子：
--
作者：
Blume,H;Hemminger,BM
通讯作者：
Hemminger,BM