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首页> 外文会议>SPIE Conference on Biomedical Applications in Molecular, Structural, and Functional Imaging >Evaluation of image quality characteristics of reduction imagein high resolution liquid crystal display
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Evaluation of image quality characteristics of reduction imagein high resolution liquid crystal display

机译：减少图像质量特征评价素高分辨率液晶显示器

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摘要

With recent developments, digital mammograms can be obtained with a small pixel size, i.e., high resolution; however, the matrix size increases. Therefore, when the image is thinned out, image information is lost when the image is displayed on a liquid crystal display (LCD). To resolve this issue, we have developed a super high resolution liquid crystal display (SHR-LCD) by using a novel resolution enhancement technology for independent subpixel driving (ISD) with three subpixels in each pixel element. However, the lack of image information caused by thinning of the image cannot be ignored because the matrix size of a phase contrast mammogram (PCM) is very large as compared to that of a conventional mammogram. We obtained noise and edge images by using the geometrical layouts of the PCM (7080 x 9480). We measured the Wiener spectrum (WS), modulation transfer function (MTF), and noise-equivalent number of quanta (NEQ) of the images reduced by the nearest-neighbor, bilinear, and bicubic (sharpness and smooth) interpolations. The reduction rate was approximately 0.14. We measured the WS and MTF when the PCM image was displayed on a 5-megapixel (MP) and 15-MP LCD. The bilinear interpolation technique gave the best image quality. The image quality was further improved by using a 15-MP SHR-LCD.
机译：随着最近的发展，可以使用小像素尺寸，即高分辨率获得数字乳房X线照片;但是，矩阵大小增加。因此，当图像被稀释时，当图像显示在液晶显示器（LCD）上时，图像信息丢失。为了解决这个问题，我们通过使用用于每个像素元件的三个子像素的独立子像素驱动（ISD）的新颖分辨率增强技术开发了超高分辨率液晶显示器（SHR-LCD）。然而，由于相对对比乳房X线图（PCM）的矩阵尺寸与传统乳房图的矩阵尺寸非常大，因此不能忽略图像信息的缺失。我们通过使用PCM的几何布局获得噪声和边缘图像（7080 x 9480）。我们测量了由最近邻，双线性（锐度和平滑）插值减小的图像的维纳谱（WS），调制传递函数（MTF）和噪声等同数量的量子（NEQ）。减少率约为0.14。当PCM图像显示在5万像素（MP）和15MPLCD上时，我们测量了WS和MTF。双线性插值技术给出了最佳的图像质量。通过使用15MPR-LCD进一步提高了图像质量。

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