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- research-articleJune 2024
Parametrized low-complexity hardware architecture of an H.264-based video encoder for FPGAs
Microprocessors & Microsystems (MSYS), Volume 105, Issue Chttps://doi.org/10.1016/j.micpro.2024.105017AbstractThis paper presents a scalable, efficient, and real-time intra H.264 video encoder architecture designed for FPGAs. The system achieves up to 2.3 Gbit/s throughput using parallel and pipelined architecture described in VHDL. The architecture ...
- research-articleJuly 2022
Architecture of a Low Latency H.264/AVC Video Codec for Robust ML based Image Classification: How Region of Interests can Minimize the Impact of Coding Artifacts
Journal of Signal Processing Systems (JSPS), Volume 94, Issue 7Pages 693–708https://doi.org/10.1007/s11265-021-01727-2AbstractThe use of neural networks is considered as the state of the art in the field of image classification. A large number of different networks are available for this purpose, which, appropriately trained, permit a high level of classification ...
- research-articleApril 2022
- research-articleApril 2022
Developing novel video coding model using modified dual-tree wavelet-based multi-resolution technique
Multimedia Systems (MUME), Volume 28, Issue 2Pages 643–657https://doi.org/10.1007/s00530-021-00863-wAbstractAll data are kept on digital platforms in today’s digital world, demanding a lot of storage space for images and video, as well as a lot of bandwidth for transmission. Data that have been compressed is highly beneficial for storing more data at ...
- short-paperMarch 2022
How innovations in ASIC architectures and novel design approaches power tomorrow's video networks
MHV '22: Proceedings of the 1st Mile-High Video ConferencePages 134–135https://doi.org/10.1145/3510450.3517318This paper describes a hardware AV1 encoder pipeline design and evaluates its performance relative to Advanced Video Coding with x264.
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- research-articleDecember 2021
RT-BVE—Real-Time no-reference Blocking Visibility Estimation in video frames
Journal of Real-Time Image Processing (SPJRTIP), Volume 18, Issue 6Pages 1921–1936https://doi.org/10.1007/s11554-020-01065-9AbstractDuring lossy video compression, a blocking artifact is introduced into a video. It can significantly reduce the quality of a compressed video, and consequently end-user Quality of Experience. Hence, it is very important to measure and monitor the ...
- research-articleJune 2021
A hybrid DST-SBPNRM approach for compressed video steganography
Multimedia Systems (MUME), Volume 27, Issue 3Pages 417–428https://doi.org/10.1007/s00530-020-00735-9AbstractThe proposed research work is presenting a novel approach in the field of steganography, especially in the compressed video domain with optimum imperceptibility to secure the secret information. In this approach, the specific secret cover video ...
- research-articleFebruary 2021
Architecture of a Low Latency H.264/AVC Video Codec for robust ML based Image Classification
DASIP '21: Workshop on Design and Architectures for Signal and Image Processing (14th edition)Pages 1–9https://doi.org/10.1145/3441110.3441149The use of neural networks represents the state of the art in the area of image classification. A large number of different networks are available for this purpose, which, appropriately trained, permit a high level of classification accuracy. Typically,...
- research-articleJanuary 2021
Integer Modified Sine-Cosine Transforms Type VII. A construction Method and Separable Directional Adaptive Transforms for Intra Prediction with 8 × 8 Chroma Blocks in Image/Video Coding
Cybernetics and Systems Analysis (KLU-CASA), Volume 57, Issue 1Pages 155–164https://doi.org/10.1007/s10559-021-00339-9AbstractA matrix method for constructing a modified order-8 integer sine-cosine transform type VII is proposed. Based on the method, two order-8 integer modified sine-cosine transforms type VII are constructed and algorithms for fast computing of these ...
- research-articleOctober 2020
Dynamically Adaptive Fast Motion Estimation Algorithm for HD Video
Journal of Signal Processing Systems (JSPS), Volume 92, Issue 10Pages 1115–1131https://doi.org/10.1007/s11265-020-01574-7AbstractThis paper presents a novel adaptive Fast Motion Estimation (FME) Algorithm, which reduces the number of search points, computational complexity and therefore lowering power consumption, while providing improved quality per watt in FME. The ...
- research-articleJanuary 2020
A Semi-fragile Video Watermarking Algorithm Based On Chromatic Residual DCT
Multimedia Tools and Applications (MTAA), Volume 79, Issue 3-4Pages 1759–1779https://doi.org/10.1007/s11042-019-08256-yAbstractIn this paper, a semi fragile video watermarking scheme based on chromatic DCT is proposed, which can protect copyright and tamper detection simultaneously. Firstly, through the experiment, it is found that the chroma block has a more stable ...
- research-articleJanuary 2020
A novel motion recovery using temporal and spatial correlation for a fast temporal error concealment over H.264 video sequences
Multimedia Tools and Applications (MTAA), Volume 79, Issue 1-2Pages 1221–1240https://doi.org/10.1007/s11042-019-08176-xAbstractIn this paper, we proposed an effective motion recovery method with low complexity for a fast temporal error concealment over H.264 video sequences. The proposed algorithm uses temporal and spatial motion vectors of a lost block and neighboring ...
- research-articleJanuary 2020
Algorithms for Fast Implementation of 4-Point Integer Sine Type Vii Transformswithout Multiplication and Separable Directional Adaptive Transforms for Intra Prediction in Image/Video Coding
Cybernetics and Systems Analysis (KLU-CASA), Volume 56, Issue 1Pages 159–170https://doi.org/10.1007/s10559-020-00231-yAbstractThe separable directional adaptive integer cosine and sine type VII transforms with 4×4 blocks are proposed for intra prediction in image and video coding. Algorithms for fast implementation of 2D 4-point separable directional integer cosine and ...
- articleJuly 2019
Predicting quality of experience for online video service provisioning
Multimedia Tools and Applications (MTAA), Volume 78, Issue 13Pages 18787–18811https://doi.org/10.1007/s11042-019-7164-9The expansion of the online video content continues in every area of the modern connected world and the need for measuring and predicting the Quality of Experience (QoE) for online video systems has never been this important. This paper has designed and ...
- research-articleApril 2019
Improving Video Compression with Deep Visual-attention Models
IMIP '19: Proceedings of the 2019 International Conference on Intelligent Medicine and Image ProcessingPages 88–94https://doi.org/10.1145/3332340.3332358Recent advances in deep learning have markedly improved the quality of visual-attention modelling. In this work we apply these advances to video compression. We propose a compression method that uses a saliency model to adaptively compress frame areas ...
- research-articleNovember 2018
Standards-compliant HTTP adaptive streaming of static light fields
VRST '18: Proceedings of the 24th ACM Symposium on Virtual Reality Software and TechnologyArticle No.: 4, Pages 1–12https://doi.org/10.1145/3281505.3281539Static light fields are an effective technology to precisely visualize complex inanimate objects or scenes, synthetic and real-world alike, in Augmented, Mixed and Virtual Reality contexts. Such light fields are commonly sampled as a collection of 2D ...
- ArticleNovember 2018
Infiniviz: Taking Quake 3 Arena on a Large-Scale Display System to the Next Level
FRUCT'23: Proceedings of the 23rd Conference of Open Innovations Association FRUCTArticle No.: 12, Pages 91–98The authors of this paper have previously presented a large-scale display system called Infiniviz in other publications. Infiniviz attempts to improve network bandwidth consumption and computational performance compared to other existing large-scale ...
- research-articleOctober 2018
Design and Implementation of a Video Streaming Adaptive Algorithm Based on Markov Prediction Model
CSAE '18: Proceedings of the 2nd International Conference on Computer Science and Application EngineeringArticle No.: 127, Pages 1–6https://doi.org/10.1145/3207677.3278097This paper1 takes WebRTC as the basic framework and uses H.264 as video streaming encoding format, which constructs a markov predictive model according to the characteristic of H.264 video frames. We design and implement the video streaming adaptive ...
- research-articleAugust 2018
An Early Decision Algorithm for High-Profile H.264 Intra Prediction
ICBIP '18: Proceedings of the 3rd International Conference on Biomedical Signal and Image ProcessingPages 71–74https://doi.org/10.1145/3278229.3278249This paper presents a fast-efficient intra-prediction algorithm for high-profile H.264 encoder. The pre-decision algorithm is proposed to reject the impossible block size based on image variance before enter to the coding kernel. The decision rule can ...
- research-articleJune 2018
Study the Effect of Commonly Used Video Compression Techniques on Sound Recovery via Negligible Object Vibrations for Visual Surveillance System
ICAIP '18: Proceedings of the 2nd International Conference on Advances in Image ProcessingPages 111–115https://doi.org/10.1145/3239576.3239585Closed circuit televisions (CCTVs) are becoming an inseparable part of our daily lives. The growth in surveillance technologies have provided a sense of security, leading to a lower crime rate in the monitored area. However, almost all the outdoor CCTVs ...