With the summary and analysis of available anisotropic diffusion algorithms, a new adaptive diffusion algorithm based on image characteristics is presented.
通过对目前非线性扩散算法的分析、总结,提出了基于区域特征分析的地形图图像自适应平滑算法。
To solve the problem of the poor gray level of SMPDP, the multi-frame combination and error diffusion methods are used. The image quality is improved greatly.
采用多帧图像的叠加显示和误差扩散方法,很好地解决图像灰度级不足的问题,从而提高荫罩式等离子体显示器的图像质量。
Partial differential diffusion equation is used to remove the noise of medical ultrasonic image.
研究了偏微分扩散方程在医学超声图像去噪中的应用。
To preserve image features, the nonlinear diffusion coefficients are locally adjusted according to the directional derivatives of the image.
而且为了保持图像特征,利用图像的方向导数局部地调整非线性扩散系数。
Image denoising with second order non-linear diffusion PDEs often leads to an undesirable staircase effect, namely, the transformation of smooth regions into piecewise constant ones.
利用二阶的非线性扩散方程进行图像去噪易产生具有“阶越效应”的去噪结果,也即使分段光滑的图像变为分段常量的。
Finally, it gave an image de-noising algorithm of coherence enhancing diffusion, which used wavelet coefficients to estimate the image edge according to the wavelets time-frequent analysis function.
针对相干增强扩散计算扩散矩阵较慢的缺点,提出了一种用小波系数估计图像边缘方向的相干增强扩散图像降噪算法。
In this paper, these shortcomings of inverse diffusion model were considered and the variational model of image enhancement coupling high order regularization term was proposed.
针对以上问题,提出了一种引入高阶正则项约束的逆扩散变分图像增强模型。
This paper expounds the concept of tourism image and the forming process of the image, and discusses the marketing from such four aspects as positioning; image design; diffusion and image acceptance.
阐述了旅游地形象概念,分析了旅游地形象形成过程,从形象定位、形象设计、形象传播和形象接受四个方面论述了旅游地形象的市场营销问题。
An algorithm based on the anisotropic diffusion equation is presented to suppress the speckle noise of B-Scan ultrasound image.
提出了一种基于各向异性扩散方程的B超图像斑点噪声抑制的算法。
The key of image nonlinear diffusion filtering based on PDE (Partial Differential Equations) is to determine the appropriate diffusion mechanism and parameters.
基于偏微分方程的图像非线性扩散滤波,关键是确定合适的扩散机制与参量。
The anisotropic diffusion methods based on the direction of the image feature proposed in the paper is efficient and can get anticipate results.
所以,基于图像特征方向建立的各向异性扩散滤波方法更能达到我们预期的效果,该设计方法是有效的。
Objective To discuss the application value of diffusion weighted image (DWI) in brainstem infarction.
目的探讨弥散加权成像(DWI)在脑干梗塞中的应用价值。
The voxel values of DTI are diffusion tensors, so in this paper we consider the regularization of diffusion tensor image.
DTI是扩散张量值图像,本文即讨论扩散张量值图像的正则化问题。
Based on mechanism of human sight, the facula diffusion method is advanced to detect individual cross-sections in the image and takes out the contours of them.
在人眼视觉机理的基础上,提出光斑扩散方法,用来探测图像中各个纤维截面并得到其轮廓线。
The invention discloses a method for recovery processing of a diffusion tensor magnetic resonance image, relating to the medical diagnosis image processing technical field.
本发明公开了一种对扩散张量磁共振图像进行恢复处理的方法,涉及医疗诊断图像处理技术领域。
By interpreting the Landsat TM image during low tide level, the distribution and diffusion of white-water from Alkaline Factory on east coast of the Jiaozhou Bay was monitored.
利用低潮位陆地卫星TM影像对胶州湾东岸碱厂白水分布与扩散进行监测。
The effectiveness of this method can be proved by using the fourth-order nonlinear diffusion of image de-noising experiment which is based on this method.
并通过基于该方法的四阶非线性扩散的图像去噪实验,结果表明了该方法的有效性。
The error code diffusion pattern caused by channel error code will change with the image structure, but its diffusion is less than that of the fixed prediction codes.
信道误码引起的误码图案依图象的内容而有变化,但扩散程度比固定预测要小。
This paper discusses the problem of speckle reducing of SAR image based on nonlinear diffusion equation in order to reduce the noise of SAR image and improve the image's quality.
探讨SAR图像相干斑抑制的非线性扩散方程方法。以抑制SAR图像噪声,提高图像质量。
The fractal structure of LPG diffusion fire edge was theoretically studied on the basis of image processing and fractal theory.
基于图像处理方法和分型理论研究了液化气扩散火焰边缘分形结构特征。
Using the features of wavelet transform that can save detail image information, an image denoising method with the combination of nonlinear diffusion and wavelet transform was presented.
利用小波变换能够很好地保留图像细节信息的特点,提出了一种将非线性扩散方程和小波变换相结合的图像去噪方法。
The article is to introduce the principle of diffusion tensor magnetic resonance imaging(DT-MRI), explain how quantitative parameters can be derived and discuss how it affect image quality.
弥散张量成像是磁共振成像的一项技术。本文主要介绍弥散张量成像的原理、量化参数及其影响因素。
An experimental system based on digital image holographic interferometry and a novel diffusion cell are designed and constructed for the measurement of mass diffusion coefficients.
自行设计和搭建了数字全息干涉法流体质扩散系数测量实验台。
Then P-M diffusion equation was used to get the high frequency signal of image from the remnant image.
然后利用PM扩散方程提取残余图像中的高频信号。将两步处理得到的信号进行合成,得到最后的处理结果。
The third algorithm proposes a hybrid image denoising algorithm based on wavelet shrinkage and TV diffusion owing to the disadvantage of TV diffusion.
第三种算法根据全变差模型在去除噪声时的缺陷,提出了将非抽样小波和全变差模型结合起来的自适应混合去噪策略。
The experimental results indicate that the proposed algorithm fits to the error-diffusion image, and the quality of the decoding image is well.
实验证明该算法能获得较好的压缩效果和较高的压缩率。
The experimental results indicate that the proposed algorithm fits to the error-diffusion image, and the quality of the decoding image is well.
实验证明该算法能获得较好的压缩效果和较高的压缩率。
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