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- LBP(Linear Back Projection) method which is used in multiphase tomography is adopted to deal with ill matrix and speed up reconstruction. 进而借助于多相流电容成象中的LBP法，处理病态矩阵和提高建象速度。
- Filter back projection (FBP) reconstruction algorithm is adopted by fan beam industrial CT systems. 扇束工业CT系统普遍采用滤波反投影 (FBP)重构算法。
- The reconstruction algorithms include back projection algorithm and filter back projection algorithm for inverse problem. 逆问题部分实现反投影算法和滤波反投影算法。
- Filter back projection(FBP) algorithm, local reconstruction algorithm(Local RA) and modified algebraic reconstruction technique are researched. 本文研究了滤波反投影算法（FBP）、局部重建算法（LocalRA）、修正的代数重建算法（MART）。
- After sinogram filtering with the proposed methods, the image are reconstructed by classical filtered back projection (FBP) method. 在对低剂量CT投影域数据进行有效滤波后,采用经典滤波反投影(FBP)法重建CT图像,以获得适用于临床诊断处理的CT图像。
- Different from the standard algorithm,the fast 2 D back projection(2D FBP)proposed in this paper requires computational time O(N 2 log N 2). 本研究提出一种快速二维反投影算法 ,其计算量仅为O(N~2 log_2~N )。
- But, rebinding will introduce blurring and reduce image resolution.Hence, we develop a BPF-type direct back projection algorithm. 本文提出了一种反投影滤波（BPF）形式的直接反投影重建方法，该方法不需要对投影数据重排，直接反投影滤波重建出最终的图像。
- Fill in or push distributor to fill in project sales report/card on time, feed back project managing/information of user and competitor. 按时填报或督导经销商按时填报有关项目销售工作报表/卡，反馈项目管理/用户与对手有关信息；
- Numerical experiment results show that compared with the filter back projection algorithm and RPCCG, 3D-CCG is more efficient in reconstruction quality. 数值模拟结果表明：采用3维约束共轭梯度算法能有效改善高能闪光照相重建图像轴线噪声大的问题，是一种具有很高抗噪能力的闪光照相图像重建算法。
- An image super-resolution reconstruction method， which combines the frequency domain motion estimation and iterative back projection （IBP） algorithm， has been proposed. 摘要 提出了一种结合频域运动估计和迭代反投影的超分辨率图像重建算法。
- Developers are frantically scaling back projects, or even mothballing them. 开发商大幅减少开工项目，甚至暂停在建工程。
- Back projection is the preferred option for the performance. 5 projectors will be mounted at a distance of 10 meters behind the screens at the top-of-screen height. 反向投影是演出的首选。5个投影机架在屏幕上方后10米的位置。
- Rose bushes shoot again after being cut back. 玫瑰丛修剪後还能再长出新枝。
- Computer simulation studies were carried out to compare the DR algorithm with the two popular algorithms: the time-domain reconstruction (TDR) and the filtered back projection (FBP). 通过计算机仿真实验比较反卷积重建法和当前流行的时域重建法与滤波反投影法的性能。
- He trudge three hour in the snow to get back home. 他在雪中跋涉三个钟点才回到家。
- The crowd fell back to let the players through. 人群后退让运动员们通过。
- Do exercise every day and you'll be back in condition. 每天锻炼锻炼，你很快会恢复健康的。
- The ship beat back against a monsoon. 船逆着季风艰难地行驶。
- I flap the flies away but soon they fly back. 我把苍蝇赶走，但一会儿又飞回来了。
- I never lend books; you never get them back. 我的书决不外借，因为总是有去无回。
