Results 221 to 230 of about 331,435 (254)

Signal-to-noise ratio, contrast-to-noise ratio and their trade-offs with resolution in axial-shear strain elastography

Physics in Medicine and Biology, 2006
In axial-shear strain elastography, the local axial-shear strain resulting from the application of quasi-static axial compression to an inhomogeneous material is imaged. In this paper, we investigated the image quality of the axial-shear strain estimates in terms of the signal-to-noise ratio (SNR(asse)) and contrast-to-noise ratio (CNR(asse)) using ...
Arun, Thitaikumar, Thomas A, Krouskop, Jonathan, Ophir   +2 more
openaire   +2 more sources

Imaging Basics: Contrast-to-Noise Ratio

2022
Val M. Runge, Johannes T. Heverhagen
openaire   +1 more source

Signal-to-Noise Ratio Versus Contrast-to-Noise Ratio

2022
Val M. Runge, Johannes T. Heverhagen
openaire   +1 more source

Optimal weighting strategies for maximizing contrast‐to‐noise ratio in photon counting CT images

Medical Physics
AbstractBackgroundPhoton counting detectors (PCDs) with energy discrimination capabilities have the potential to generate grayscale CT images with improved contrast‐to‐noise ratio (CNR) through optimal weighting of their spectral measurements.PurposeThis study evaluates the CNR performance of grayscale CT projections and images generated from spectral ...
Yirong, Yang, Sen, Wang, Grant M, Stevens, Jiahua, Fan, Adam S, Wang   +4 more
openaire   +2 more sources

SCENS: Simultaneous Contrast Enhancement and Noise Suppression for Low-Light Images

IEEE Transactions on Industrial Electronics, 2021
Guan Mingyang, Changyun Wen, Renjie He   +2 more
exaly  

Comparison of model-based and regular iterative reconstruction on signal-to-noise ratios and contrast-to-noise ratios

2015
Aims and objectives: Iterative reconstruction reduces noise and artefacts and potentially allows for dose reduction while preserving image quality compared to filtered back-projection.
openaire   +1 more source

Deep-Learning-Based Electrical Noise Removal Enables High Spectral Optoacoustic Contrast in Deep Tissue

IEEE Transactions on Medical Imaging, 2022
Kaushik Basak Chowdhury, Dominik Justel, Vasilis Ntziachristos   +2 more
exaly  

Joint Contrast Enhancement and Noise Reduction of Low Light Images Via JND Transform

IEEE Transactions on Multimedia, 2022
Haonan Su, Cheolkon Jung
exaly  

Radiographic Techniques, Contrast, and Noise in X-Ray Imaging

American Journal of Roentgenology, 2015
Walter Huda
exaly  

Contrast-to-Noise Ratio and Low-Contrast Object Resolution on Full- and Low-Dose MDCT: SAFIRE Versus Filtered Back Projection in a Low-Contrast Object Phantom and in the Liver

American Journal of Roentgenology, 2012
Mark E Baker, Namita Gandhi, Andrei Purysko   +2 more
exaly