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首页> 外文期刊>Journal of digital imaging: the official journal of the Society for Computer Applications in Radiology >Solution for nonuniformities and spatial noise in medical LCD displays by using pixel-based correction
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Solution for nonuniformities and spatial noise in medical LCD displays by using pixel-based correction

机译：使用基于像素的校正，通过使用基于像素的校正来解决医疗液晶显示屏中的不均匀性和空间噪声的解决方案

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摘要

Liquid crystal displays (LCD) are rapidly replacing cathode ray tube displays (CRT) for medical imaging. LCD technology has improved significantly in the last few years and has important advantages over CRT. However, there are still some aspects of LCD that raise questions as to the usefulness of liquid crystal displays for very subtle clinical diagnosis such as mammography. One drawback of modern LCD displays is the existence of spatial noise expressed as measurable stationary differences in the behavior of individual pixels. This type of noise can be described as a random stationary image superposed on top of the medical image being displayed. It is obvious that this noise image can make subtle structures invisible or add nonexistent patterns to the medical image. In the first case, subtle abnormalities in the medical image could remain undetected, whereas in the second case, it could result into a false positive. This paper describes a method to characterize the spatial noise present in high-resolution medical displays and a technique to solve the problem. A medical display with built-in compensation for the spatial noise at pixel level was developed and improved image quality is demonstrated.
机译：液晶显示器（LCD）正在快速更换阴极射线管显示器（CRT），用于医学成像。 LCD技术在过去几年中有所提高，与CRT相比具有重要的优势。然而，LCD仍有一些方面，提出了对液晶显示器的有用性的问题，用于非常微妙的临床诊断，例如乳房X线摄影。现代LCD显示器的一个缺点是存在于各个像素行为的可测量静止差异的空间噪声的存在。这种类型的噪声可以描述为叠加在所显示的医学图像的顶部的随机固定图像。很明显，这种噪声图像可以使微妙的结构是不可见的或向医学图像添加不存在的模式。在第一种情况下，医学图像中的微妙异常可以保持未被发现，而在第二种情况下，它可能导致假阳性。本文介绍了一种表征高分辨率医学显示器中存在的空间噪声的方法和解决问题的技术。开发了一种具有内置补偿的医疗显示，用于像素级别的空间噪声，并证明了改进的图像质量。

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