Results 21 to 30 of about 651 (177)

Intra-frame Based Video Compression Using Deep Convolutional Neural Network (DCNN)

open access: yesJOIV: International Journal on Informatics Visualization, 2022
In principle, a video codec is built by implementing various algorithms and their development. The next generation of codecs involves more artificial intelligence applications and their development.
Arief Bramanto Wicaksono Putra   +3 more
doaj   +1 more source

Impact of Constant Rate Factor on Objective Video Quality Assessment

open access: yesAdvances in Electrical and Electronic Engineering, 2017
This paper deals with the impact of constant rate factor value on the objective video quality assessment using PSNR and SSIM metrics. Compression efficiency of H.264 and H.265 codecs defined by different Constant rate factor (CRF) values was tested.
Juraj Bienik   +2 more
doaj   +1 more source

Comparative Rate-Distortion-Complexity Analysis of VVC and HEVC Video Codecs

open access: yesIEEE Access, 2021
Versatile Video Coding (VVC/H.266) is the next-generation international video coding standard and a successor to the widespread High Efficiency Video Coding (HEVC/H.265).
Alexandre Mercat   +5 more
doaj   +1 more source

Side-Information Generation for Temporally and Spatially Scalable Wyner-Ziv Codecs

open access: yesEURASIP Journal on Image and Video Processing, 2009
The distributed video coding paradigm enables video codecs to operate with reversed complexity, in which the complexity is shifted from the encoder toward the decoder. Its performance is heavily dependent on the quality of the side information generated
Mukherjee Debargha   +4 more
doaj   +2 more sources

An Analytic Transform Kernel Derivation Method for Video Codecs

open access: yesApplied Sciences, 2021
In the standardization of versatile video coding (VVC), discrete cosine transform (DCT)-2, discrete sine transform (DST)-7, and DCT-8 are regarded as the primary transform kernels.
Ankit Kumar, Bumshik Lee
doaj   +1 more source

FOCAL: A Forgery Localization Framework Based on Video Coding Self-Consistency

open access: yesIEEE Open Journal of Signal Processing, 2021
Forgery operations on video contents are nowadays within the reach of anyone, thanks to the availability of powerful and user-friendly editing software. Integrity verification and authentication of videos represent a major interest in both journalism (e ...
Sebastiano Verde   +5 more
doaj   +1 more source

Motion Compensation on DCT Domain

open access: yesEURASIP Journal on Advances in Signal Processing, 2001
Alternative fully DCT-based video codec architectures have been proposed in the past to address the shortcomings of the conventional hybrid motion compensated DCT video codec structures traditionally chosen as the basis of implementation of standard ...
Liu KJ Ray, Koc Ut-Va
doaj   +1 more source

Enhanced Semantic Communications and VVC-Based Hybrid Video Coding System

open access: yesIEEE Access
Video, the dominant media format on the Internet, is pushing conventional video coding techniques to their limits with a wide range of bandwidth-intensive and delay-sensitive applications.
Prabhath Samarathunga   +6 more
doaj   +1 more source

Division-Free Multiquantization Scheme for Modern Video Codecs

open access: yesAdvances in Multimedia, 2012
The current trend of digital convergence leads to the need of the video encoder/decoder (codec) that should support multiple video standards on a single platform as it is expensive to use dedicated video codec chip for each standard. The paper presents a
Mousumi Das, Atahar Mostafa, Khan Wahid
doaj   +1 more source

Flow-Process Foreground Region of Interest Detection Method for Video Codecs

open access: yesIEEE Access, 2017
Detecting the foreground region of interest (ROI) for video sequences is an important issue both for video codecs and monitoring systems. In this paper, we propose a flow-process-based method to detect foreground ROI using four steps: global motion ...
Zhewei Zhang   +4 more
doaj   +1 more source

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