Results 21 to 30 of about 2,574,520 (205)

Penerapan Metode Localization Tampering dan Hashing untuk Deteksi Rekayasa Video Digital

open access: yesJurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), 2021
The development of digital video technology which is increasingly advanced makes digital video engineering crimes prone to occur. The change in digital video has changed information communication, and it is easy to use in digital crime.
Alfiansyah Imanda Putra Alfian   +2 more
doaj   +1 more source

Video Watermarking Algorithm Based on NSCT, Pseudo 3D-DCT and NMF

open access: yesSensors, 2022
Video watermarking is an important means of video and multimedia copyright protection, but the current watermarking algorithm is difficult to ensure high robustness under various attacks.
Di Fan   +4 more
doaj   +1 more source

Associations of noise kurtosis, genetic variations in NOX3 and lifestyle factors with noise-induced hearing loss

open access: yesEnvironmental Health, 2020
Background Noise-induced hearing loss (NIHL) is a complex disease caused by environmental and genetic risk factors. This study was to explore the association of noise kurtosis, triphosphopyridine nucleotide oxidase 3 (NOX3) and lifestyles with NIHL ...
Tianyu Zhao   +8 more
doaj   +1 more source

A novel video noise reduction method based on PDE, adaptive grouping, and thresholding techniques

open access: yesThe Journal of Engineering, 2021
Undoubtedly, video block‐matching and 3D filtering (VBM3D) has achieved a significant improvement in video denoising. Nevertheless, in practice, failure to distinguish between the different noise areas, ignoring noise variances and pixel intensity, false‐
Ali Abdullah Yahya, Jieqing Tan, Min Hu
doaj   +1 more source

Using Noise Level to Detect Frame Repetition Forgery in Video Frame Rate Up-Conversion

open access: yesFuture Internet, 2018
Frame repetition (FR) is a common temporal-domain tampering operator, which is often used to increase the frame rate of video sequences. Existing methods detect FR forgery by analyzing residual variation or similarity between video frames; however, these
Yanli Li, Lala Mei, Ran Li, Changan Wu
doaj   +1 more source

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

The Structural Similarity Can Identify the Presence of Noise in Video Data from Unmanned Vehicles

open access: yesJournal of Imaging
This paper proposes a method for detecting distorted frames in video footage recorded by an unmanned vehicle. The proposed detection method is performed by analyzing a sequence of video frames, utilizing the contrast aspect of the structural similarity ...
Anzor Orazaev   +3 more
doaj   +1 more source

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   +3 more sources

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