Results 91 to 100 of about 133,828 (342)

Satellite Image Denoising Using Discrete Cosine Transform

, 2017
The process of adding and removing the noises to an image is said to be as Image denoising. The process can be used in many image applications. This paper presents a method of satellite image denoising scheme using a wavelet transform called as Discrete ...
Ahmed Mir, Shabir; AMET University, Padma, T.; AMET University   +1 more
core   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 more
wiley   +1 more source

Discrete Cosine Transform, Second Edition

, 2019
https://www.amazon.com/Discrete-Cosine-Transform-Humberto-Ochoa-Dominguez/dp ...
Humberto De Jesus Ochoa Dominguez
core  

On Determination Method for Resolution of Secondary Electron Images in Scanning Electron Microscopy

Advanced Science, EarlyView.
An idealized SEM, termed Rayleigh's microscope, is constructed by Monte Carlo simulation to represent imaging conditions that just satisfy the Rayleigh criterion. Based on this physically defined model, sharpness–resolution conversion curves are established and combined with the Rose criterion, enabling automated resolution evaluation from practical ...
Tongfang Yang, Yanbo Zou, Zejun Ding
wiley   +1 more source

Three-dimensional discrete cosine transform-based feature extraction for hyperspectral image classification

Journal of Applied Remote Sensing, 2018
. The hyperspectral remote sensor acquires hundreds of contiguous spectral images, resulting in large data that contain a significant amount of redundant information.
M. Prabukumar, S. Sawant, Sathishkumar Samiappan, L. Agilandeeswari   +3 more
semanticscholar   +1 more source

Neural Fields for Highly Accelerated 2D Cine Phase Contrast MRI

Advanced Science, EarlyView.
ABSTRACT 2D cine phase contrast (CPC) MRI provides quantitative information on blood velocity and flow within the human vasculature. However, data acquisition is time‐consuming, motivating the reconstruction of the velocity field from undersampled measurements to reduce scan times. In this work, neural fields are proposed as a continuous spatiotemporal
Pablo Arratia, Martin J. Graves, Mary McLean, Carolin Pirkl, Carola‐Bibiane Schönlieb, Timo Schirmer, Florian Wiesinger, Matthias J. Ehrhardt   +7 more
wiley   +1 more source

Efficient Data Acquisition and Reconstruction in Ultrasound Imaging

IEEE Access
Ultrasound is a prominent imaging technique used in a variety of applications. Due to very high frame rate, the amount of raw data obtained while using an ultrasonic device is large. Thus, data management and storage are posing significant problems.
Sai Konda, Hicham Chaoui
doaj   +1 more source

Spiking neural network performs discrete cosine transform for visual images

, 2009
The human visual system demonstrates powerful image processing functionalities. Inspired by the principles from neuroscience, a spiking neural network is proposed to perform the discrete cosine transform for visual images.
Arfan Ghani, Maguire, Liam, Wu, Qingxiang, Ghani, Arfan, Condell, Joan, Joan Condell, McGinnity, T. M., T. M. McGinnity, Liam Maguire, Qingxiang Wu   +9 more
core   +1 more source

Traction Force Microscopy for Viscoelastic Substrates: A Semi‐Analytical Method

Advanced Science, EarlyView.
A semi‐analytical viscoelastic traction force microscopy framework is introduced for quantifying time‐resolved cell tractions on flat finite‐thickness substrates. The method generalizes elastic traction force microscopy to Generalized Maxwell materials, identifies when elastic approximations remain valid and, when they do not, shows that inferred ...
Adrià Villacrosa‐Ribas, Daniëlle C. A. Duffhues, Pim van den Bersselaar, Sarah Pragnere, Bart G. W. Groenen, Mariana Azevedo Gonzalez Oliva, Giuseppe Ciccone, Manuel Salmeron‐Sanchez, Carlijn V. C. Bouten, Jose J. Muñoz, Vito Conte   +10 more
wiley   +1 more source

Image Enhancement Based on Discrete Cosine Transforms (DCT) and Discrete Wavelet Transform (DWT): A Review

IOP Conference Series: Materials Science and Engineering, 2019
Image enhancement is an important topic in image analysis in order to help humans and computer vision algorithms to obtain an accuracy information for analysis.
Wan Azani Mustafa, H. Yazid, W. Khairunizam, Mohd Aminuddin Jamlos, I. Zunaidi, Z. M. Razlan, A. Shahriman   +6 more
semanticscholar   +1 more source