image attenuation
英 [ˈɪmɪdʒ əˌtenjʊˈeɪʃn]
美 [ˈɪmɪdʒ əˌtenjʊˈeɪʃn]
网络 影像衷减
双语例句
- 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。 - 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。 - The application of image digital technology in poststack noise attenuation. Going to the countryside
图像数字处理技术在叠后去噪中的应用 - The transmission image of tomographic gamma scanning ( TGS) is researched, and the linear attenuation coefficient in TGS is simulated by means of two reconstruction methods.
研究了层析γ扫描（TGS）透射图像，并用两种TGS线性衰减系数重建方法进行TGS透射图像的计算机模拟仿真。 - However, it is often difficult to segment myocardial region from the PET or SPECT image due to blurred border and probable non-uniform attenuation of radioisotope in pathological status.
心脏的PET和SPECT图像边界模糊，在病理状态下可能有局部显像缺失，致使图像分割困难。 - Image quality of SPECT Positron accord circuitry and PET is affected by the methods of image acquisition, the radial attenuation inner body and the methods of image reconstruction.
SPECT、正电子符合线路和PET图像质量受图像采集方法、射线在体内衰减以及图像重建方法等因素的影响。 - 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。 - The principle and expression of image abruption and image restructure. Two examples illuminating the effect on image digital noise attenuation method were given.
介绍了图像数字处理技术去噪的方法原理，给出了图像分离和图像重构的数学表达式，并用2个实例说明了图像数字处理技术去噪的效果。 - A new image reconstruction algorithm of linear attenuation coefficients with neural networks is proposed based upon paper [ 1].
在文[1]的基础上，提出了将神经网络方法应用于TGS重建线性衰减系数图像的算法。 - In this paper, a restoration mathematics model is established for deep layer in multiphoton excitation scanning microscopy by analyzing three-dimensional confocal scanning image attenuation in turbid medium.
本文在分析混浊介质对共焦三维扫描图象衰减的基础上，建立了多光子激发荧光扫描的深层图象恢复的数学模型。 - 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。 - Image Reconstruction with Attenuation Correction for Laser Fusion
激光聚变中存在吸收的图像重建 - Image quality, accuracy of attenuation and scatter corrections.
图像质量、衰减和散射校正精确性。 - Study on improving image quality with transmission attenuation correction
穿透衰减校正改善成像质量的研究 - However, the tradeoff between penetration and axial resolution exists in traditional narrow-band and wide-band color flow imaging systems, which makes it a very difficult task to image blood flow within narrow vessels from deeper regions or through tissues with very severe attenuation.
传统窄带和宽带彩色血流成像系统都存在着成像穿透深度和轴向分辨率之间的矛盾，对于较深或衰减严重的部位中较细血管内的血流成像具有很大难度。 - The image noises are generated in the processes which include the X-ray irradiation and attenuation pass through the body and image enhancement and optical focusing and optical switching and amplification and analog-digital conversion and other transformations.
冠状动脉造影图像是在X光照射下所获得的，它经过了人体对X光衰减、影像增强、光学聚焦、光电转换、放大及模数转换等变换，在这个过程中产生了噪声。 - Then a reference thermal image whose impact of transmission attenuation and load voltage can be neglected will be selected from the thermal images collected.
然后，从拍摄的多幅热像中，选取一幅传输衰减和负荷状态影响可以忽略的热像作为参考。 - CT method uses array linear detectors to perform high-resolution tomography and yield relative image of linear attenuation coefficient.
CT装置用的是阵列式线形探测器。测出的线衰减系数是相对的，成像要求高分辨。 - The Digitally Reconstructed Radiograph ( DRR) rendering technology generates similar X-ray image-like image from digital CT data by simulating the attenuation and exposure process of X-ray.
数字重建放射图像（DDR：DigitallyReconstructedRadiograph）技术通过模拟X光线的衰减和曝光过程，从数字化CT数据中获得类似X光片的成像效果。 - Through image spatial-frequency domain transformation, attenuation of low-pass filtering, gray-scale mapping and Gaussian low-pass filtering, as well as Laplacian sharpening, the GMAW instantaneous process images with distinct details and much lower background noise were obtained while the nature of the images remain unchanged.
通过图像频率域转换，经过衰减低通滤波、灰度映射、高斯低通滤波和Laplacian锐化，最终获得不改变图像性质、主体细节突出、背景噪声大量减少的GMAW-S瞬时过程图像。