Evaluation of a flat CRT monitor for use in radiology.
Evaluation of a flat CRT monitor for use in radiology.
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用于放射学的平板 CRT 显示器的评估。
DOI：
10.1007/s10278-001-0013-0
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发表时间：
2001
影响因子：
4.4
通讯作者：
Furukawa,T
中科院分区：
文献类型：
--
作者：
Roehrig,H;Krupinski,EA;Furukawa,T
基于常见投影技术的医学射线照片是传统上通过放置在平面观察框上来显示的平面图像。在传统曲面显示器上以数字形式呈现这些平面图像可能会导致失真，可能影响诊断。如果解剖结构的物理线性尺寸很重要，则尤其如此。来自观察者后面的环境光的反射也可能是弯曲显示器的问题。本研究的目的是比较物理和心理物理性能的平面显示器与传统的曲面显示器。两个显示监视器与不同类型的前玻璃面板表面进行了评估。第一个显示器有一个传统的曲面，另一个有一个平面。物理测量包括动态范围，显示功能，面纱眩光，和空间均匀性。一项观察者性能研究使用低对比度方波模式来确定刚刚可察觉的差异。在一种条件下关闭环境灯，在另一种条件下打开环境灯。物理测量表明，显示功能几乎相同，但均匀性，面纱眩光和信噪比更好的弯曲显示器。曲面显示器的观察者性能总体上更好，但曲面显示器在关灯和开灯之间的性能下降幅度比平面显示器更大。灯光打开时的更大退化可能是由于曲面显示器比平面显示器反射更多。平面显示监视器可用于查看临床射线照片。
Medical radiographs based on familiar projection techniques are planar images traditionally displayed by placing on a flat surface viewbox. Presenting these planar images in digital form on a traditional monitor with a curved surface may cause distortions, possibly affecting diagnoses. This would be true especially if physical linear dimensions of the anatomy are important. Reflections from ambient lights behind the observer also could be a problem with curved displays. The goal of this study was to compare physical and psychophysical performance of a flat-surface display monitor with a traditional curved-surface monitor. Two display monitors with different types of front glass-panel surfaces were evaluated. The first monitor had a traditional curved surface, and the other had a flat surface. Physical measurements included dynamic range, display function, veiling glare, and spatial uniformity. An observer performance study used low-contrast, square-wave patterns to determine just-noticeable differences. Ambient lights were turned off in one condition and on in the other. Physical measurements showed that the display functions were nearly identical, but uniformity, veiling glare, and signal-to-noise-ratio were better for the curved monitor. Observer performance was better overall with the curved monitor, but the degradation in performance between lights off and lights on was greater for the curved than flat monitor. The greater degradation with the lights on could be attributed to more reflections off the curved than the flat monitor. A flat-surface display monitor may be useful for viewing clinical radiographs.