Volume 17, Issue 2 · TMI Watch

April 1998 · Volume 17, Issue 2 · Vol. 17 · Issue 2 · DOI 10.1109/42.700729

Optimized homomorphic unsharp masking for MR grayscale inhomogeneity correction

中文标题翻译待生成

B.H. Brinkmann, A. Manduca, R.A. Robb

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Modality 模态

Abstract / 摘要

English

Grayscale inhomogeneities in magnetic resonance (MR) images confound quantitative analysis of these images. Homomorphic unsharp masking and its variations have been commonly used as a post-processing method to remove inhomogeneities in MR images, However, little data is available in the literature assessing the relative effectiveness of these algorithms to remove inhomogeneities, or describing how...

中文

中文摘要翻译待生成

Author Info / 作者信息

B.H. Brinkmann Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

A. Manduca Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

R.A. Robb Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

Translation pending Article 700729

April 1998 · Volume 17, Issue 2 · Vol. 17 · Issue 2 · DOI 10.1109/42.700739

Segmentation and tracking in echocardiographic sequences: active contours guided by optical flow estimates

中文标题翻译待生成

I. Mikic, S. Krucinski, J.D. Thomas

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Modality 模态

Abstract / 摘要

English

This paper presents a method for segmentation and tracking of cardiac structures in ultrasound image sequences. The developed algorithm is based on the active contour framework. This approach requires initial placement of the contour close to the desired position in the image, usually an object outline. Best contour shape and position are then calculated, assuming that at this configuration a glob...

中文

中文摘要翻译待生成

Author Info / 作者信息

I. Mikic Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

S. Krucinski Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

J.D. Thomas Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

Translation pending Article 700739

April 1998 · Volume 17, Issue 2 · Vol. 17 · Issue 2 · DOI 10.1109/42.700740

Tikhonov regularization and prior information in electrical impedance tomography

中文标题翻译待生成

M. Vauhkonen, D. Vadasz, P.A. Karjalainen, E. Somersalo, J.P. Kaipio

Body Part 身体部位

Modality 模态

Abstract / 摘要

English

The solution of impedance distribution in electrical impedance tomography is a nonlinear inverse problem that requires the use of a regularization method. The generalized Tikhonov regularization methods have been popular in the solution of many inverse problems. The regularization matrices that are usually used with the Tikhonov method are more or less ad hoc and the implicit prior assumptions are...

中文

中文摘要翻译待生成

Author Info / 作者信息

M. Vauhkonen Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

D. Vadasz Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

P.A. Karjalainen Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

E. Somersalo Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

J.P. Kaipio Affiliation not provided by IEEE Xplore 机构中文翻译待生成或 IEEE 未提供机构

Translation pending Article 700740