Results 31 to 40 of about 32,314 (198)
Encryption Based Image Watermarking Algorithm in 2DWT-DCT Domains
Sensors, 2021 This paper proposes an encryption-based image watermarking scheme using a combination of second-level discrete wavelet transform (2DWT) and discrete cosine transform (DCT) with an auto extraction feature.
Nayeem Hasan +4 more
doaj +1 more source
A novel neural network approach to cDNA microarray image segmentation [PDF]
, 2013 This is the post-print version of the Article. The official published version can be accessed from the link below. Copyright @ 2013 Elsevier.Microarray technology has become a great source of information for biologists to understand the workings of DNA ...
Adams +52 more
core +1 more source
Medical Image Denoising using Adaptive Threshold Based on Contourlet Transform
, 2011 Image denoising has become an essential exercise in medical imaging especially the Magnetic Resonance Imaging (MRI). This paper proposes a medical image denoising algorithm using contourlet transform.
Prasad, KVSVR, Satheesh, S.
core +1 more source
Improvement of BM3D Algorithm and Employment to Satellite and CFA Images Denoising
, 2011 This paper proposes a new procedure in order to improve the performance of block matching and 3-D filtering (BM3D) image denoising algorithm. It is demonstrated that it is possible to achieve a better performance than that of BM3D algorithm in a variety ...
Pakdelazar', 'Omid +1 more
core +2 more sources
SPECKLE NOISE FILTERING FOR ULTRASOUND IMAGES OF COMMON CAROTID ARTERY: A REVIEW [PDF]
ICTACT Journal on Image and Video Processing, 2014 Speckle is modeled as a signal dependent noise, which tends to reduce the image resolution and contrast, thereby reducing the diagnostic values of the ultrasound imaging modality.
D. Sasikala, M. Madheswaran
doaj
Diagnostics, 2023 The present study aimed to evaluate the effectiveness of different filters in improving the quality of myocardial perfusion single-photon emission computed tomography (SPECT) images.
Abdurrahim Rahimian +3 more
doaj +1 more source
Advanced Science, EarlyView.A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang +11 more
wiley +1 more source
Penapisan Derau Gaussian, Speckle dan Salt&Pepper Pada Citra Warna
IJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2011 Quality of digital image can decrease becouse some noises. Noise can come from lower quality of image recorder, disturb when transmission data process and weather. Noise filtering can make image better becouse will filtering that noise from the image and
Ika Purwanti Ningrum +2 more
doaj +1 more source
Ultra‐Wide‐Field Noninvasive Imaging Through Scattering Media Via Physics‐Guided Deep Learning
Advanced Science, EarlyView.We propose a physics‐guided adaptive dual‐domain learning method for ultra‐wide‐field noninvasive imaging through scattering media, namely UNI‐Net. Our method not only reduces the requirement for real experimental data by an order of magnitude but also enables clear imaging of complex scenes with an ultra‐large field of view, which is 164 times the OME
Lintao Peng +5 more
wiley +1 more source
Preeminently Robust Neural PPG Denoiser
Sensors, 2022 Photoplethysmography (PPG) is a simple and cost-efficient technique that effectively measures cardiovascular response by detecting blood volume changes in a noninvasive manner.
Ju Hyeok Kwon +4 more
doaj +1 more source