数据重建 meaning in English
data reconstruction
Examples
- We combine the algorithm of ray casting and z - buffer to rebuild 3d data , and use marching cubes to create iso - surfaces in 3d regular data sets . several common spatial interpolation are discussed in this thesis , and the famous kriging algorithm in the geological statistics is the emphasis . - four interpolations are used in the case of study , and the results are compared in this thesis
在系统实现中，针对两类算法的不同特点，在不同的模块中选用了两类算法中的经典算法：提出将光线投射法与z - buffer算法结合实现三维体数据重建；使用移动立方体法实现三维数据场的等值面绘制。 - The results indicates that the cubic logarithm polynomials can accurately reconstruct the raw thermal images in the experiment , and can effectively suppress the interference to defect recognition caused by random noise and uneven heating in the pt testing of composite laminates ; the digital images from data reconstruction have clearer defect display or higher defect resolution than the raw thermal images , and the quadratic coefficient image of cubic logarithm regression shows the highest snr
结果表明利用三次对数多项式回归即可精确地重建本次实验的原始热像，同时能有效地克服复合材料层压板脉冲热像检测中随机噪声和加热不均效应对缺陷识别的干扰；经过数据重建后所作的数字图像比原始热像有更高的缺陷显示度或分辨力，其中以三次对数多项式回归公式中的二次项系数所作的数字图像的信噪比最大。 - The simulation results show that , either for parallel geometry or for fan beam geometry , high resolution images can be reconstructed by means of both the algorithms from the overlapped projection data . moreover , the quality of the images reconstructed by the virtual detector algorithm from the overlapped low - resolution projection data is almost as good as that of the images reconstructed directly from the high - resolution projection data
大量模拟试验结果表明，无论对平行束的相叠低分辨数据还是对扇形束的相叠低分辨数据，用虚拟探测器法和直接重建法均可由相叠低分辨数据重建出具有较高分辨率的图像。 - In this paper , two novel algorithms of reconstructing high resolution images from both overlapped parallel projection data and overlapped fan beam projection data with low resolution are presented . one is called virtual detector algorithm , and the other is direct reconstruction algorithm . both of the algorithms with two forms for the parallel data and fan beam data respectively are developed based on the interpolative algebraic reconstruction techniques ( iart )
本文在研究插值代数重建法( iart )的基础上，根据特别设计的数据采集模式(平行相叠采样和扇形相叠采样) ，提出了由相叠低分辨数据重建高分辨图像的两个新算法，即虚拟探测器法和直接重建法。