Results 11 to 20 of about 731,157 (280)

On Recovery of Block Sparse Signals via Block Compressive Sampling Matching Pursuit

open access: yesIEEE Access, 2019
Compressive sampling matching pursuit (CoSaMP) is an efficient reconstruction algorithm for sparse signal. When the signal is block sparse, i.e., the non-zero elements are presented in clusters, some block sparse reconstruction algorithms have been ...
Xiaobo Zhang   +4 more
doaj   +3 more sources

A Novel Stereo Matching Algorithm for Digital Surface Model (DSM) Generation in Water Areas

open access: yesRemote Sensing, 2020
Image dense matching has become one of the widely used means for DSM generation due to its good performance in both accuracy and efficiency. However, for water areas, the most common ground object, accurate disparity estimation is always a challenge to ...
Wenhuan Yang, Xin Li, Bo Yang, Yu Fu
doaj   +1 more source

Impedance matched absorptive thermal blocking filters [PDF]

open access: yesReview of Scientific Instruments, 2014
We have designed, fabricated, and characterized absorptive thermal blocking filters for cryogenic microwave applications. The transmission line filter's input characteristic impedance is designed to match 50 Ω and its response has been validated from 0 to 50 GHz.
Wollack, E. J.   +3 more
openaire   +3 more sources

A Megavoltage CT Image Enhancement Method for Image-Guided and Adaptive Helical TomoTherapy

open access: yesFrontiers in Oncology, 2019
Purpose: To propose a novel method to improve the mega-voltage CT (MVCT) image quality for helical TomoTherapy while maintaining the stability on dose calculation.Materials and Methods: The Block-Matching 3D-transform (BM3D) and Discriminative Feature ...
Yaru Liu   +8 more
doaj   +1 more source

A toolset for the analysis and optimization of motion estimation algorithms and processors [PDF]

open access: yes, 2009
This paper presents a reconfigurable processor designed to execute user-defined block-matching motion estimation algorithms, and a toolset for the design of such algorithms and for the configuration of the processor.
Nunez-Yanez, JL, Spiteri, T, Vafiadis, G
core   +2 more sources

Performance Evaluation of Feature Matching Techniques for Detecting Reinforced Soil Retaining Wall Displacement

open access: yesRemote Sensing, 2022
Image registration technology is widely applied in various matching methods. In this study, we aim to evaluate the feature matching performance and to find an optimal technique for detecting three types of behaviors—facing displacement, settlement, and ...
Yong-Soo Ha, Jeongki Lee, Yun-Tae Kim
doaj   +1 more source

N400-like potentials and reaction times index semantic relations between highly repeated individual words [PDF]

open access: yes, 2009
The N400 ERP is an electrophysiological index of semantic processing. Its amplitude varies with the semantic category of words, their concreteness, or whether their meaning matches that of a preceding context.
Debruille, J. Bruno, Renoult, Louis
core   +1 more source

Efficient and Robust Feature Matching for High-Resolution Satellite Stereos

open access: yesRemote Sensing, 2022
Feature matching between high-resolution satellite stereos plays an important role in satellite image orientation. However, images of changed regions, weak-textured regions and occluded regions may generate low-quality matches or even mismatches ...
Danchao Gong   +4 more
doaj   +1 more source

Motion estimation with object based regularisation [PDF]

open access: yes, 1996
A dynamic programming based matching method for motion estimation, that optimises a Bayesian maximum likelihood function in a 3-D optimisation space, is presented.
Cosmas, J, Panis, S
core   +1 more source

Backward adaptive pixel-based fast predictive motion estimation [PDF]

open access: yes, 2009
This letter presents a novel backward adaptive pixel-based fast predictive motion estimation (BAPME) scheme for lossless video compression. Unlike the widely used block-matching motion estimation techniques, this method predicts the motion on a pixel-by ...
Canagarajah, CN   +2 more
core   +2 more sources

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