Generalized Cross-Validation as a Stopping Rule for the Richardson-Lucy Algorithm - Reeves - 1995 () Citation Context ... work has been done in this direction in relation to the widely used Richardson-Lucy (RL) algorithm—an iterative method for solving (1.5) [6, 13]— by researchers in ...
( RL) deblurring algorithm was extended by using the blur model.This modified RL algorithm was refer to as the Projective Motion Richardson-Lucy( PMRL) algorithm. The experi-ments demonstrated that this model and algorithm were effective and it could performance well in image restoration.Key ...
Keywords:imagerestoration;deblurring;Richardson-Lucy(RL)algorithm;GainMap 摘要:针对传统的Richardson-Lucy(RL)算法存在振铃效应和噪声放大等问题,提出了一种基于RL的图像去模糊新算法,通过 在迭代过程中引入增益图(GainMap),降低了复原图像的对比度,阻止迭代过程振铃效应的传播和噪声的进一步放大。详细讨 ...
提出了图像复原的改进RL正则化算法,有效抑制了复原图像中存在的振铃效应。实验结果表明,RL正则化算法 在模糊核的估计存在误差时,依然能够得到较好的图像复原效果。 【关键词】 图像复原;Richardson—Lucv正则化;平均结构相似度;运动模糊图像 AnAlgorithmofModifiedRichardson—LucyRegularizationApproach ...
关键词:射影运动模型;射影运动Richardson-Lucy算法;总变分正则化;噪声估计;去模糊 中图分类号:TP391 文献标识码:A 文章编号:1009-3044(2017)31-0192-04 Noise Adaptive Projective Motion Richardson-Lucy Deblurring Algorithm Research WANG Zhi-Wei, MIAO Lei-Lei, WU Chen-Jian (Department of Electronics and ...
RL and Gradient Descent: the Additive Solution Yes there are, in fact there is one algorithm much beloved in Machine Learning called Batch Gradient Descent: it basically keeps going down the slope of the surface, like a bunch of ping pong balls until they stop at the bottom of the hill. ...
The first reference map is obtained only from the input blurred image so that the first stage of the improved RL algorithm is performed with the first reference map as the local constraint mask. Then the second reference map is updated using both the deconvolved result of the first stage and...
In our method, we perform two filtering steps with the Richardson-Lucy (RL) deconvolution. The advantage of this deconvolution algorithm over the Wiener filter is that it intrinsically accounts for the Poisson noise characteristic of the photon counting process in cameras. In our reconstruction ...
added one function in functional.py and one class in transforms.py file of RL (RichardsonLucy) deconvolution algorithm. the using test or example for it is given in functional.py file in documentation section. added richardson_lucy deconvolution algorithm to functional.py and tr… … 60fad69 ...
and the conventional Richardson-Lucy (RL) deblurring algorithm was extended by using the blur model.This modified RL algorithm was refer to as the Projective Motion Richardson-Lucy(PMRL) algorithm.The experiments demonstrated that this model and algorithm were effective and it could performance...