Results 31 to 40 of about 102,473 (261)

Video coding technique with a parametric modelling of noise [PDF]

open access: yesOpto-Electronics Review, 2019
This paper presents a video encoding method in which noise is encoded using a novel parametric model representing spectral envelope and spatial distribution of energy. The proposed method has been experimentally assessed using video test sequences in a practical setup consisting of a simple, real-time noise reduction technique and High Efficiency Video
openaire   +2 more sources

Video Enhancement Using Adaptive Spatio-Temporal Connective Filter and Piecewise Mapping

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
This paper presents a novel video enhancement system based on an adaptive spatio-temporal connective (ASTC) noise filter and an adaptive piecewise mapping function (APMF).
Shi-Qiang Yang   +4 more
doaj   +2 more sources

ELIMINATION OF WHITE NOISE FROM VIDEO SIGNALS OF TELEVISION TRANSMISSION BY USING DIGITAL RECURSIVE ESTIMATION

open access: yesElectrica, 2002
During the transmission of television signals, because of several sources of electromagnetic noises, video signals are corrupted with white gaussian noise.
Mehmet ENGIN   +2 more
doaj   +2 more sources

Optimasi Teknologi WAV2Vec 2.0 menggunakan Spectral Masking untuk meningkatkan Kualitas Transkripsi Teks Video bagi Tuna Rungu

open access: yesJurnal Elkomika
ABSTRAK Teknologi Automatic Speech Recognition (ASR) telah berkembang pesat sebagai alat untuk meningkatkan aksesibilitas informasi bagi penyandang tuna rungu, terutama melalui video.
ACHMAD NOERCHOLIS   +2 more
doaj   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende   +26 more
wiley   +1 more source

Application of Welsch M-estimation in Video Reconstruction and Background Subtraction [PDF]

open access: yesJisuanji gongcheng, 2019
Aiming at the background subtraction problem of surveillance video mixed with impact noise during compression sampling,a robust video reconstruction and decomposition model based on Welsch M-estimation and tensor decomposition regularization is proposed ...
XIA Senlin,SUN Huaijiang,CHEN Beijia
doaj   +1 more source

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

open access: yesAdvanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed   +6 more
wiley   +1 more source

BCI-Walls: A robust methodology to predict if conscious EEG changes can be detected in the presence of artefacts

open access: yesPLoS ONE, 2023
Brain computer interfaces (BCI) depend on reliable realtime detection of conscious EEG changes for example to control a video game. However, scalp recordings are contaminated with non-stationary noise, such as facial muscle activity and eye movements ...
Bernd Porr, Lucía Muñoz Bohollo
doaj   +2 more sources

Penyembunyian Data pada File Video Menggunakan Metode LSB dan DCT

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2014
Abstrak Penyembunyian data pada file video dikenal dengan istilah steganografi video. Metode steganografi yang dikenal diantaranya metode Least Significant Bit (LSB) dan Discrete Cosine Transform (DCT).
Mahmuddin Yunus, Agus Harjoko
doaj   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

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