Results 31 to 40 of about 678,685 (296)

Improved detection of small atom numbers through image processing [PDF]

open access: yes, 2010
We demonstrate improved detection of small trapped atomic ensembles through advanced post-processing and optimal analysis of absorption images. A fringe removal algorithm reduces imaging noise to the fundamental photon-shot-noise level and proves ...
A. F. Tauschinsky   +6 more
core   +2 more sources

A nonlinear variational method for signal segmentation and reconstruction using level set algorithm

open access: yes, 2006
A nonlinear functional is considered in this letter for segmentation and noise removal of piecewise continuous signals containing binary information contaminated with Gaussian noise.
Mahmoodi, Sasan, Sharif, Bayan
core   +1 more source

Multiplicative Noise Removal Using Variable Splitting and Constrained Optimization [PDF]

open access: yes, 2010
Multiplicative noise (also known as speckle noise) models are central to the study of coherent imaging systems, such as synthetic aperture radar and sonar, and ultrasound and laser imaging.
Bioucas-Dias, José M.   +1 more
core   +3 more sources

LinkNet-B7: Noise Removal and Lesion Segmentation in Images of Skin Cancer

open access: yesMathematics, 2022
Skin cancer is common nowadays. Early diagnosis of skin cancer is essential to increase patients’ survival rate. In addition to traditional methods, computer-aided diagnosis is used in diagnosis of skin cancer.
Cihan Akyel, Nursal Arıcı
doaj   +1 more source

AWGN Removal Using Modified Steering Kernel and Image Matching

open access: yesApplied Sciences, 2022
Image noise occurs during acquisition and transmission and adversely affects processes, such as image segmentation and object recognition and classification.
Bong-Won Cheon, Nam-Ho Kim
doaj   +1 more source

An Approach to Improve the Quality of Infrared Images of Vein-Patterns

open access: yesSensors, 2011
This study develops an approach to improve the quality of infrared (IR) images of vein-patterns, which usually have noise, low contrast, low brightness and small objects of interest, thus requiring preprocessing to improve their quality.
Chih-Lung Lin
doaj   +1 more source

Impulsive noise removal from color images with morphological filtering

open access: yes, 2017
This paper deals with impulse noise removal from color images. The proposed noise removal algorithm employs a novel approach with morphological filtering for color image denoising; that is, detection of corrupted pixels and removal of the detected noise ...
A Jakhar   +12 more
core   +1 more source

Multi-Class Diagnosis of Neurodegenerative Diseases Using Effective Deep Learning Models With Modified DenseNet-169 and Enhanced DeepLabV 3+

open access: yesIEEE Access
Early detection lowers the death rate and allows for prompt treatment of the exhausted individual with neurodegenerative diseases. Most existing classification studies can either not generate probabilistic predictions or consider uncertainty, or do not ...
Srinivas Katkam   +3 more
doaj   +1 more source

Techniques for noise removal from EEG, EOG and air flow signals in sleep patients

open access: yes, 2004
Noise is present in the wide variety of signals obtained from sleep patients. This noise comes from a number of sources, from presence of extraneous signals to adjustments in signal amplification and shot noise in the circuits used for data collection ...
Abbott, Derek   +3 more
core   +1 more source

Advanced Denoising for X-ray Ptychography [PDF]

open access: yes, 2019
The success of ptychographic imaging experiments strongly depends on achieving high signal-to-noise ratio. This is particularly important in nanoscale imaging experiments when diffraction signals are very weak and the experiments are accompanied by ...
Chang, Huibin   +9 more
core   +4 more sources

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