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.
逆问题部分实现反投影算法和滤波反投影算法。
The reconstruction algorithms include back projection algorithm and filter back projection algorithm for inverse problem.
扇束工业CT系统普遍采用滤波反投影(FBP)重构算法。
Filter back projection (FBP) reconstruction algorithm is adopted by fan beam industrial ct systems.
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.
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.
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.
此方法通过对反投影误差的检验实现了对部分可靠散射中心的自动选择和有效关联。
In the method, a part of reliable scattering centers are automatically selected and effectively associated via checking the back-projection error.
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.
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.
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.
所以本论文尝试对反投影重建图像进行图像处理，提高反投影图像的分辨率，以求得到较为清晰的图像。
The article try to make image manipulation and analysis to the Back Projection reconstruction image to enhance the resolving power and achieve a clearer image.
研究表明：改进的等位线反投影算法不但可以较准确地对场域内目标进行定位，而且具有一定的分辨率；
The research results show that back projection algorithm can not only accurately determine the location of target, but also have good resolution.
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.
方法：利用曲线拟合方法模拟大脑外形曲线，借助有限元方法和等位线反投影算法完成脑eit仿真成像。
A curve of a real brain shape is simulated with the curve-fitting methods and EIT in the brain is finished with finite-element methods and Equipotential Lines Back-Projection algorithm.
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.
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.
为了在普通PC机上实现计算机断层扫描(CT)快速重建，提出了利用查找表和极坐标反投影快速重建方法。
In order to realize ct fast reconstruction on an ordinary PC, a fast reconstruction process using look-up table and polar coordinate back-projection was presented.
在重建过程中，根据探测器的中心偏移量，对滤波线方程、滤波前后的重排和校正以及反投影过程进行修正处理。
In the process of the reconstruction, the filtering line, re-sampling, correction and back-projection are revised respectively according to the detector center excursion.
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.
传统的滤波反投影算法(FBP)要求完备的投影数据，而实际检测中往往由于客观原因无法获得完全的投影数据。
Traditional filtered backprojection (FBP) method required complete projection data, which were often difficult or even impossible to acquire for objective reasons.
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.
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.
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.
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