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Chroma intra-prediction with attention-based CNN architectures

Blanch, Marc Gorriz, Blasi, Saverio, Smeaton, Alan F. orcid logoORCID: 0000-0003-1028-8389, O'Connor, Noel E. orcid logoORCID: 0000-0002-4033-9135 and Mrak, Marta (2020) Chroma intra-prediction with attention-based CNN architectures. In: 27th IEEE International Conference on Image Processing (ICIP 2020), 25-28 Oct 2020, Abu Dhabi, United Arab Emirates (UAE).

Abstract
Neural networks can be used in video coding to im- prove chroma intra-prediction. In particular, usage of fully- connected networks has enabled better cross-component pre- diction with respect to traditional linear models. Nonetheless, state-of-the-art architectures tend to disregard the location of individual reference samples in the prediction process. This paper proposes a new neural network architecture for cross-component intra-prediction. The network uses a novel attention module to model spatial relations between reference and predicted samples. The proposed approach is integrated into the Versatile Video Coding (VVC) prediction pipeline. Experimental results demonstrate compression gains over the latest VVC anchor compared with state-of-the-art chroma intra-prediction methods based on neural networks.
Metadata
Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Uncontrolled Keywords:Chroma intra prediction; Convolutional Neural Network; Attention Algorithms
Subjects:Computer Science > Image processing
Computer Science > Digital video
Computer Science > Video compression
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Computing
DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Institutes and Centres > INSIGHT Centre for Data Analytics
Published in: 2020 IEEE International Conference on Image Processing (ICIP). . IEEE.
Publisher:IEEE
Official URL:http://dx.doi.org/10.1109/ICIP40778.2020.9191050
Copyright Information:© 2020 The Authors
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Science Foundation Ireland, JOLT funded by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska Curie grant agreement No 765140
ID Code:24646
Deposited On:23 Oct 2020 11:07 by Noel Edward O'connor . Last Modified 11 Nov 2020 17:07
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