基于普通微机，使用这种优化的卷积反投影重建算法与传统重建算法进行了比较。
The new technique of convolution backprojection algorithm compared with traditional reconstruction algorithm based PC.
介绍了由投影重建图像的基本原理，对扇束滤波反投影重建算法进行了分析，并针对该算法的特点提出了一种提高算法求解速度的方法。
In this paper, we propose a new algorithm based on sub-aperture and filtered back-projection algorithm to estimate the anisotropy of objects scattering centers in wide-aperture imaging.
本文提出一种用图像描述放射治疗计划的方法，并利用直接反投影图像的重建算法进行放射治疗计划设计。
A method of image processing was developed to describe the radiotherapy treatment planning, and the back-projection reconstruction method was used to program the radiotherapy treatment planning.
利用卷积反投影算法对图像进行重建时，要降低成本，提高成像效率，就必须选取合理的抽样间距和投影数。
It is important to select suitable sampling space and projection data for reducing cost and improving the image reconstruction efficiency in convolution backprojection algorithm.
然后通过迭代反投影算法进行超分辨率重建。
Secondly, the super-resolution reconstruction is implemented using the iterative back projection algorithm.
本文在比较了各种算法后，采用卷积反投影算法作为并行图像重建的算法。
After comparing different algorithms, this paper introduces convolution back projection algorithm for the parallel image reconstruction.
重点分析了利用经典的卷积反投影算法重建康普顿背散射扫描图像过程中的数据修正问题。
The paper primarily analyses the data correction in reconstructing the image of CBS in the manner of classical filtered back-project.
因此提出了改进的偏折层析滤波反投影算法，数值模拟表明，改进算法在有效抑制倾斜现象的同时，对重建结果不会造成明显的失真。
Results show that the effect of projection noise on the reconstructed fields is represented by a slope function related to the filter used in deflection tomographic filtered back-projection algorithm.
为提高其重建速度，提出了一种利用对称性并结合递归技术的方法来减少该算法的反投影运算量。
To improve its reconstruction speed, a method combining symmetry with recursion technique to reduce backprojection calculation is presented.
卷积反投影(CBP)与直接傅立叶重建(DF)同是图像重建中变换法的典型算法。
Both convolution Backprojection (CBP) method and direct-Fourier (DF) reconstruction method are the representative algorithms of transform methods in image reconstruction.
该算法重建的图像比常用的滤波反投影和代数重建等算法得到的精度高。
The image reconstructed by this algorithm is better in the reconstruction accuracy than that reconstructed by the filtered backprojection and algebraic reconstruction techniques.
为了提高滤波反投影算法图像的重建效率，本文利用参数表的方法对程序作了优化，使重建速度提高了近100倍。
For the sake of the image reconstruction efficiency we shortened the reconstruction time almost 100 times by parameter table method.
在分析微波层析图像重建数学模型的基础上，对过程层析成像技术的反投影算法图像重建进行了探讨和研究。
Based on analyzing mathematical model of image reconstruction with microwave process tomography, image reconstruction with anti-projection algorithm is studied.
在分析微波层析图像重建数学模型的基础上，对过程层析成像技术的反投影算法图像重建进行了探讨和研究。
Based on analyzing mathematical model of image reconstruction with microwave process tomography, image reconstruction with anti-projection algorithm is studied.
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