[HTML][HTML] Multi-source information fused generative adversarial network model and data assimilation based history matching for reservoir with complex geologies

K Zhang, HQ Yu, XP Ma, JD Zhang, J Wang, CJ Yao… - Petroleum Science, 2022 - Elsevier
For reservoirs with complex non-Gaussian geological characteristics, such as carbonate
reservoirs or reservoirs with sedimentary facies distribution, it is difficult to implement history …

Single Image Signal-to-Noise Ratio (SNR) Estimation Techniques for Scanning Electron Microscope–A Review

DCY Ong, KS Sim - IEEE Access, 2024 - ieeexplore.ieee.org
Noises are commonly present in grayscale images, particularly in Scanning Electron
Microscope (SEM) images especially secondary emission noise, which can significantly …

[PDF][PDF] Deep convolutional neural network for SEM image noise variance classification

SK Swee, LC Chen, TS Chiang… - Engineering …, 2023 - engineeringletters.com
Scanning Electron Microscopy (SEM) image plays a significant role in industrial, medical,
and research fields. However, image defects, including existing noise will degrade the …

Unsupervised estimation of the equivalent number of looks in SAR images

Y Cui, G Zhou, J Yang… - IEEE Geoscience and …, 2011 - ieeexplore.ieee.org
In this letter, an unsupervised method for estimating the equivalent number of looks (ENL) in
synthetic aperture radar (SAR) images is proposed. Assuming that the multiplicative noise in …

Signal-to-noise ratio estimation for SEM single image using cubic spline interpolation with linear least square regression

KS Sim, FF Ting, JW Leong, CP Tso - Engineering Letters, 2019 - research.monash.edu
A novel technique based on cubic spline interpolation with linear least square regression
(CSILLSR) is developed to calculate the signal-to-noise ratio (SNR) of scanning electron …

Image signal‐to‐noise ratio and noise variance estimation using autoregressive model

NS Kamel, KS Sim - Scanning: The Journal of Scanning …, 2004 - Wiley Online Library
During the last three decades, several techniques have been proposed for signal‐to‐noise
ratio (SNR) and noise variance estimation in images, with different degrees of success …

Noise variance estimation using image noise cross‐correlation model on SEM images

KS Sim, ME Nia, CP Tso - Scanning, 2013 - Wiley Online Library
A number of techniques have been proposed during the last three decades for noise
variance and signal‐to‐noise ratio (SNR) estimation in digital images. While some methods …

Image signal‐to‐noise ratio estimation using shape‐preserving piecewise cubic Hermite autoregressive moving average model

KS Sim, MY Wee, WK Lim - Microscopy research and technique, 2008 - Wiley Online Library
We propose to cascade the Shape‐Preserving Piecewise Cubic Hermite model with the
Autoregressive Moving Average (ARMA) interpolator; we call this technique the Shape …

Signal-to-noise ratio (SNR) as a measure of reproducibility: design, estimation, and application

N Elkum, MM Shoukri - Health Services and Outcomes Research …, 2008 - Springer
This paper proposes the use of signal-to-noise ratio (SNR) as another index of a
measurement's reproducibility. We derive its maximum likelihood estimation and discuss …

Signal‐to‐noise ratio estimation on SEM images using cubic spline interpolation with Savitzky–Golay smoothing

KS Sim, MA Kiani, ME Nia, CP Tso - Journal of microscopy, 2014 - Wiley Online Library
A new technique based on cubic spline interpolation with Savitzky–Golay noise reduction
filtering is designed to estimate signal‐to‐noise ratio of scanning electron microscopy (SEM) …