The attenuation of X-ray through the object is non-linear and the gray level of image is non-linear response of object thickness.
射线穿过物体的衰减是非线性的，经过影像系统得到的图像灰度与物体厚度是非线性的关系；
The image reconstruction problem of linear attenuation coefficients is very difficult and central in transmission TGS.
在TGS透射测量中，线性衰减系数值的图像重建问题是TGS的难点和核心问题。
Many factors work on the target volume calculation, such as PET image acquisition mode, scatter correction, attenuation correction, reconstruction method, image display mode, positron pharmacy.
靶组织体积的计算受PET图像采集模式，散射校正方法，衰减校正方法，重建技术，图像显示模式，正电子药物等因素影响。
Ct image of an object can be reconstructed according to the theory that attenuation of X-ray emerges when it passes through objects with different density.
根据射线穿过不同密度的物质产生的衰减不同，可以重建出物体的CT图像。
After built the material's defect model in theory, combined the attenuation image and damage mechanics of acoustic, we can get the material's invalidation model.
从理论上建立材料的缺陷模型，并结合声衰减分布图与超声损伤力学原理，就能获得材料的失效模型。
After processing the amplitude image and phase image which was come from experiment we obtain the distribution of the velocity and attenuation.
通过实验获得了声相位图与声幅度图，并通过数字图像处理获得了相应的速度图与衰减图。
As the outdoor atmospheric conditions and the degradation of the image are inseparable, analysis of light transmission occurs during the physical process of scattering and attenuation.
由于户外图像的退化与大气状况密不可分，分析了光在传输的过程中发生散射和衰减的物理过程。
This paper presents a new adaptive multilevel median filter based on direction information measure to solve the contradiction between noise attenuation and image details-preserving (edge-preserving).
针对图像滤噪中滤除噪声和保护细节(边缘)的矛盾，本文提出一种新的基于方向信息测度的自适应多级中值滤波器。
The image generated is a result of attenuation of the beam by all structures along the path of the beam and results in a gray-scale picture.
引起的图象是射线的衰减的结果由所有结构沿射线和结果的道路在灰色极谱图片。
AFCN (adapted fuzzy cluster neural network) is introduced to keep up trade-off between noise attenuation and detail preservation in image processing.
为了获得滤除噪声和细节保留两方面更好的平衡，提出了一种自适应模糊聚类神经网络。
This paper introduces an image processing technique into seismic data processing as a noise attenuation technology.
实际资料处理结果表明本文提出方法的去噪应用效果显著。
Figure 1: Axial CT enterographic image demonstrating enlarged mesenteric lymph nodes (green arrowheads) abnormal mesenteric nodes with low central attenuation (blue arrows).
肠道轴位显示扩大的肠系膜淋巴结肿大（绿箭头），异常的低密度肠系膜结节。
Figure 1: Axial CT enterographic image demonstrating enlarged mesenteric lymph nodes (green arrowheads) abnormal mesenteric nodes with low central attenuation (blue arrows).
肠道轴位显示扩大的肠系膜淋巴结肿大（绿箭头），异常的低密度肠系膜结节。
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