Results 201 to 210 of about 10,267 (252)

Echo‐Planar‐Based Time‐of‐Flight Imaging Using a Modified Interleaved Flyback Trajectory

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3131-3144, June 2026.
ABSTRACT Purpose A modified interleaved flyback (miFB) approach is introduced, designed to mitigate flow artifacts caused by alternating readout polarities in Echo Planar Imaging (EPI), while preserving acquisition efficiency. Methods We propose reconstructing odd and even echoes of 3D‐EPI separately.
Simon Blömer, Tony Stöcker, Rüdiger Stirnberg   +2 more
wiley   +1 more source

K‐CC‐MoCo: A Fast k‐Space‐Based Respiratory Motion Correction for Highly Accelerated First‐Pass Perfusion Cardiovascular MR

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3536-3549, June 2026.
ABSTRACT Purpose First‐pass perfusion cardiovascular MR (FPP‐CMR) enables the non‐invasive diagnosis of microcirculation and coronary artery disease. In free‐breathing FPP‐CMR, motion correction is usually performed in the image domain, requiring an initial reconstruction.
Elisa Moya‐Sáez, Rosa‐María Menchón‐Lara, Javier Sánchez‐González, Catarina N. Carvalho, Andreia S. Gaspar, Carlos Real, Carlos Galán‐Arriola, Rita G. Nunes, Borja Ibanez, Teresa M. Correia, Carlos Alberola‐López   +10 more
wiley   +1 more source

A Spatio‐Temporal Diffusion Model for Cardiac Real‐Time Imaging

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3574-3583, June 2026.
ABSTRACT Purpose Real‐time imaging of cardiac function is favorable due to shorter scan times and becomes necessary when arrhythmia or inability to hold breath leads to insufficient quality of electrocardiogram (ECG)‐gated Cartesian cine. However, comparable spatio‐temporal resolution can only be achieved in undersampled settings, which in turn demand ...
Oliver Schad, Julius Frederik Heidenreich, Nils Petri, Viktor Hartung, Alena Kollmann, Thorsten Alexander Bley, Peter Nordbeck, Bernhard Petritsch, Tobias Wech   +8 more
wiley   +1 more source

A Z‐Score Template Method for Person‐Specific Augmentation of Clinical Brain MRI: An Investigation in Multiple Sclerosis

NMR in Biomedicine, Volume 39, Issue 6, June 2026.
This study develops a new Z‐score template method for person‐specific image synthesis to handle missing sequence problems as seen in multiple sclerosis (MS). The synthesized images show equivalency to source and cycle‐generative adversarial network (CycleGAN) outputs in both quality and treatment prediction in MS.
Olayinka Oladosu, Rehman Tariq, Shayan Shahrokhi, Yunyan Zhang   +3 more
wiley   +1 more source

An entropy based approach for SSIM speed up

Signal Processing, 2017
This paper focuses on an entropy based formalism to speed up the evaluation of the Structural SIMilarity(SSIM) index in images affected by a global distortion. Looking at images as information sources, avisualdistortion typical setcan be defined for SSIM.
V Bruni, D Vitulano
exaly   +4 more sources

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On the use of SSIM in HEVC

2013 Asilomar Conference on Signals, Systems and Computers, 2013
The Structural SIMilarity (SSIM) index has been attracting an increasing amount of attention recently in the video coding community as a perceptual criterion for testing and optimizing video codecs. Meanwhile, the arrival of the new MPEG-H/H.265 High Efficiency Video Coding (HEVC) standard creates new opportunities and challenges in perceptual video ...
Tiesong Zhao, Kai Zeng 0003, Abdul Rehman 0001, Zhou Wang 0001   +3 more
openaire   +1 more source

Convergence Results in Image Interpolation With the Continuous SSIM

SIAM Journal on Imaging Sciences, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Francesco Marchetti, Gabriele Santin
openaire   +2 more sources

Selecting the proper window for SSIM

SPIE Proceedings, 2012
The structural similarity index (SSIM) is a well-known metric in the field of image quality assessment (IQA). It is a full-reference metric that uses a sliding window to determine local quality/distortion measures between two images (based on a combination of luminance, contrast, and structural measurements from each image's window), and combines ...
Steven B. McFadden, Paul A. S. Ward
openaire   +1 more source

On Rate Distortion Optimization Using SSIM

IEEE Transactions on Circuits and Systems for Video Technology, 2012
In this paper, we present a method for performing rate-distortion optimization (RDO) using a perceptual visual quality metric, the structural similarity index (SSIM), as the target of optimization. Rate-distortion optimization is widely used in modern video codecs to make various encoder decisions to optimize the rate-distortion tradeoff.
Chuohao Yeo, Hui Li Tan, Yih Han Tan
openaire   +1 more source

Fractal image coding using SSIM

2011 18th IEEE International Conference on Image Processing, 2011
Since Jacquin proposed original fractal image compression technique in 1990, fractal coding method has been developed into various schemes. Traditionally, fractal coding uses mean square error (MSE) to evaluate similarity of image blocks, but the similarity evaluated by MSE usually differs from human visual system (HVS).
Jianji Wang 0001, Yuehu Liu, Ping Wei 0001, Zhiqiang Tian, Yaochen Li, Nanning Zheng 0001   +5 more
openaire   +1 more source