Results 11 to 20 of about 673,965 (277)
Sensors, 2021 Today’s wearable medical devices are becoming popular because of their price and ease of use. Most wearable medical devices allow users to continuously collect and check their health data, such as electrocardiograms (ECG).
Hongzu Li, Pierre Boulanger
doaj +1 more source
Add noise to remove noise: Local differential privacy for feature selection
Computers & Security, 2022 Feature selection has become significantly important for data analysis. It selects the most informative features describing the data to filter out the noise, complexity, and over-fitting caused by less relevant features. Accordingly, feature selection improves the predictors’ accuracy, enables them to be trained faster and more cost-effectively, and ...
Mina Alishahi +2 more
openaire +1 more source
Remote Sensing, 2023 The locally adjusted cubic-spline capping (LACC) algorithm is well recognized for its effectiveness in the global time series reconstruction of vegetation biophysical and biochemical parameters.
Mingzhu Xu +3 more
doaj +1 more source
An Iterative Mean Filter for Image Denoising
IEEE Access, 2019 We propose an Iterative Mean Filter (IMF) to eliminate the salt-and-pepper noise. IMF uses the mean of gray values of noise-free pixels in a fixed-size window. Unlike other nonlinear filters, IMF does not enlarge the window size. A large size reduces the
ugur erkan +3 more
doaj +1 more source
Frontiers in Earth Science, 2020 Because of its robustness and practicality, the Horizontal-to-Vertical Spectral Ratio (HVSR) method has been widely used to obtain subsurface structure, mainly the sediment thickness that resides over bedrock.
Mochammad Randy Caesario Harsuko +13 more
doaj +1 more source
Accurate Detection for Zirconium Sheet Surface Scratches Based on Visible Light Images
Sensors, 2023 Zirconium sheet has been widely used in various fields, e.g., chemistry and aerospace. The surface scratches on the zirconium sheets caused by complex processing environment have a negative impact on the performance, e.g., working life and fatigue ...
Bin Xu +6 more
doaj +1 more source
Sensors, 2023 Laser altimetry data from the Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) contain a lot of noise, which necessitates the requirement for a signal photon extraction method.
Linyu Gu +5 more
doaj +1 more source
An efficient method to remove mixed Gaussian and random-valued impulse noise
PLoS ONE, 2022 Mixed Gaussian and Random-valued impulse noise (RVIN) removal is still a big challenge in the field of image denoising. Existing denoising algorithms have defects in denoising performance and computational complexity.
Mengdi Xing, Guorong Gao
doaj
Sensors, 2014 Surface electromyography (sEMG) is an important measurement technique used in biomechanical, rehabilitation and sport environments. In this article the design, development and testing of a low-cost wearable sEMG system are described.
Tamara Grujic Supuk +2 more
doaj +1 more source
Diagnostics, 2023 Retinal blood vessel segmentation is a valuable tool for clinicians to diagnose conditions such as atherosclerosis, glaucoma, and age-related macular degeneration. This paper presents a new framework for segmenting blood vessels in retinal images.
Ahmed Alsayat +5 more
doaj +1 more source