Results 31 to 40 of about 658,126 (299)

PRNU-Based Source Device Attribution for YouTube Videos [PDF]

open access: yesDigital Investigation, March 2019, 2019
Photo Response Non-Uniformity (PRNU) is a camera imaging sensor imperfection which has earned a great interest for source device attribution of digital videos. A majority of recent researches about PRNU-based source device attribution for digital videos do not take into consideration the effects of video compression on the PRNU noise in video frames ...
arxiv   +1 more source

Composite Video Noise Modelling and Suppressing

open access: yesSignal and Image Processing, 2011
In order to tackle the recording video denoising problem with non-stationary image contents, a critical task is to estimate statistical properties of the composite noise in video signals. After investigation of a variety of test video sequences, based on the wavelet decomposition of the noise, the estimation can be conducted by empirical modeling of ...
Xinghuo Yu   +4 more
openaire   +3 more sources

Development of a video-rate range finder using dynamic threshold method for characteristic point detection [PDF]

open access: yes, 1999
This study develops a video-rate stereo range finding circuit to obtain the depth of objects in a scene by processing video signals (R, G, B, and brightness signals) from binocular CCD cameras. The electronic circuit implements a dynamic threshold method
Gofuku, Akio   +3 more
core   +1 more source

SmoothVideo: Smooth Video Synthesis with Noise Constraints on Diffusion Models for One-shot Video Tuning [PDF]

open access: yesarXiv, 2023
Recent one-shot video tuning methods, which fine-tune the network on a specific video based on pre-trained text-to-image models (e.g., Stable Diffusion), are popular in the community because of the flexibility. However, these methods often produce videos marred by incoherence and inconsistency.
arxiv  

Study the Effect of Transmission Cable Resistance on Tv – Satellite Image Quality [PDF]

open access: yesEngineering and Technology Journal, 2011
The noise of satellite broadcasting images was statistically analyzed as afunction of values of resistant put in video signal transmission cable in imagesadopted in the study.
Salema Sultan Salman
doaj   +1 more source

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

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

Local Feature Filtering Method for Dynamic Multiframe Video Sequence Images

open access: yesJournal of Applied Mathematics, 2022
To improve the quality of local feature filtering for dynamic multiframe video sequence images, this study is aimed at designing an improved nontexture class noise filtering algorithm based on noise construction denoising algorithm and gray histogram of ...
Dawei Zhang, Dan Huang
doaj   +1 more source

Visual Speech Enhancement

open access: yes, 2018
When video is shot in noisy environment, the voice of a speaker seen in the video can be enhanced using the visible mouth movements, reducing background noise.
Gabbay, Aviv   +2 more
core   +1 more source

AAPM Task Group No. 249.B—Essentials and guidelines for clinical medical physics residency training program

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract The establishment of guidelines and curriculum standards for medical physics residency training is a critical component of setting expectations and competencies for the profession. Since the last publication of these standards, residency training has become integrated into the eligibility criteria for most medical physics certification bodies.
Jonathon A. Nye   +16 more
wiley   +1 more source

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