反投影

Linear Back Projection is used and two aspects are improved.

该算法采用了线性反投影的原理，作了两处改进。

The simulation experiments illustrate that the method effectively improve the back projection speed.

仿真实验表明，这种方法可以有效提高反投影速度。

In the research of inverse problem of MITT, a filtered back projection algorithm was carried out to reconstruct the image.

在逆问题的研究中，采用滤波反投影算法对初始热声源分布图像进行了重建，并分析了重建图像质量。

At the last, filter back projection was used to reconstruct the image.

最后利用滤波反投影法重建图像。

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。

This algorithm can provide images superior to those obtained by commonly used linear back projection algorithm with a similar reconstruction time.

该方法与目前广泛采用的线性反投影算法重建图象时间相当，但重建图象质量有显著改善。

Experimental results show the image quality has been improved markedly, compared with the typical linear back projection algorithm and Landweber iteration algorithm.

实验结果表明，与典型的反投影及Landweber迭代算法相比，该算法所构图像质量有明显改善。

Computer simulation studies were carried out to compare the DR algorithm with the two popular algorithms: the time-domain reconstruction and the filtered back projection.

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。

Methods: Made a cylinder lens and a direct back projection tomography machine .

自制柱透镜及反投影机与电视透视机相结合，进行反投影试验。

Results: The direct projection tomography machine can display tomography image of the model. Conclusion: It is reasonable and valuable that the direct projection tomography technology.

直接反投影断层原理成立，可以显示出物体断层图像，因而进一步研究直接投影用于人体断层成像有一定的价值。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。