Hybrid Weighted l_1-Total Variation Constrained Reconstruction for MR Image

来源 :Chinese Journal of Electronics | 被引量 : 7次 | 上传用户:lvguanghuang
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Compressed sensing based Magnetic resonance(MR) image reconstruction can be done by minimizing the sum of least square data fitting item, the Total variation(TV) and l1 norm regularizations. In this paper, inspired by the conventional constrained recon
其他文献
本文提出了1种基于Contourlet与ICA相结合的手部生物特征多模态融合的识别算法。这种多模融合的算法主要利用掌纹和指横纹特征2种模态进行融合,首先把掌纹和指横纹图像分别用Contourlet小波变换,得出一个低频分量和一些列的高频子带,其低频分量可体现纹理的概貌,高频子带可以概括纹理细节,将用Contourlet小波变换提取出来的掌纹与横纹的低频分量再用ICA算法对数据进行降维处理,再用归一
期刊
Discrete cosine transform(DCT) is an effective method to extract proper features for face recognition. Discrete cosine transform can only map the resource data to another data field instead of compres
期刊
Image registration is widely used in image processing. Researchers have introduced image registration techniques based on the log-polar transform for its rotation and scale invariant properties. It su
期刊
Colorization is a well established problem concerning recovering the potential colors of monochrome images. In the past decade several highly effective computer-assisted methods have been proposed for
期刊
In this paper we present a method for extracting the best candidate edge combination based on multi-features fusion, aiming at the challenges of accurately locating the Data Matrix(DM) code(hereinafte
期刊
A new feature selection method is proposed for high-dimensional data clustering on the basis of data field. With the potential entropy to evaluate the importance of feature subsets, features are filte
期刊
In order to improve the general detection accuracy of eye state, this paper puts forward an innovative method for judging human eye state based on PERCLOS. After pretreatment of the eye image, Hough t
期刊
In order to realize automatic region matching between source and target images, a multi-source local color transfer algorithm based on texture similarity is proposed. The source and target images are
期刊
The patch matching of the traditional Nonlocal means(NLM) filter mainly depends on structure similarity and cannot adapt to the patch rotation or mirroring transformation. Therefore, designing a measu
期刊
The integrality of moving objects is the basis for video-based object tracking and action analysis. But it often becomes unreliable as a result of shadow elimination when the object has similar proper
期刊