查询词典 projection gradient method

The Filtered back projection technique Is used more as a method of image reconstruction currently.

滤波──逆投影法是当前用得较多的一种图像重建方法，在当代X射线CT系统中几乎都用这种方法构成系统。

An image super-resolution reconstruction method, which combines the frequency domain motion estimation and iterative back projection algorithm, has been proposed.

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。

A back projection method of the filtered back projecion algorithm is proposed based on passive raydriven technique and preinterpolation technique.

提出了滤波反投影（filtered back projection， FBP）算法的基于被动式射线驱动和预插值的反投影策略。

A back projection method of the filtered back projecion algorithm is proposed based on passive ray-driven technique and pre-interpolation technique.

提出了滤波反投影(filtered back projection， FBP)算法的基于被动式射线驱动和预插值的反投影策略。

In order to improve the precision of registration algorithm and the quality of reconstructed image, an image registration method with sub-pixel precision is proposed, and super-resolution reconstruction is performed through iterative back projection algorithm.

提出了一种具有子像素级精度的图像配准方法，并通过迭代反投影算法进行超分辨率重建。

This paper proposes a projection method to transform a unipartite network into a bipartite network.

针对得到的二部图网络，在信息论的框架下，提出了一种基于信息瓶颈的社区发现方法。

In order to effectively abstract the texture and denoise but not damage the edge and other important details of image, Meyer (2001) proposed using elements of BV space and G space to characterize cartoon and details of image respectively. The authors present PDE of minimizing energy on the basis of Meyer's work, After the model is discretizated. projection algorithm and the method for ROF model are applied. Thus an image is decomposed into two parts, bounded variation component u and texture with noise υ.

为有效地提取纹理和去噪而不损坏图像的边缘及其他重要细节，Meyer(2001)提出了分别用BV空间和G空间刻画图像的主体和细节部分，笔者在Meyer的图像分解模型基础上，建立能量最小化PDE方程，将模型离散化后，利用投影算法和ROF模型的求解方法，将图像分解为有界变差部分u和包含纹理和噪声的部分υ。

After the model is discretizated,projection algorithm and the method for ROF model are applied.Thus an image is decomposed into two parts,bounded variation component u and texture with noise v.The numer...

数值实验表明，此方法仅用共40次迭代就能达到很好的分解效果，且去噪的信噪比比ROF模型提高了29.95%，而且除能有效地提取纹理和去噪外本方法对图像的边缘及其他重要细节损坏较小。

The orthogonal projection option can be used to implement Burnaby''s (1966) method for size adjustment.

项目的垂直化选项可以用于Burnaby''s (1966)方法中的数据调整。

Analyze the projection method and space Cartesian coordinate system. It focuses on conversion between different coordinates.

对地图投影中的投影方式以及采用的空间直角坐标系统进行分析，其中重点介绍了投影坐标与地理坐标、地理坐标与空间直角坐标以及空间直角坐标之间的转换问题。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。