Perceptual evaluation of pre-processing for video transcoding

Huang, Shiyu, Luo, Ziyuan, Xu, Jiahua, Zhou, Wei and Chen, Zhibo 2022. Perceptual evaluation of pre-processing for video transcoding. Presented at: 2021 International Conference on Visual Communications and Image Processing (VCIP), Munich, Germany, 5-8 December 2021. 2021 International Conference on Visual Communications and Image Processing (VCIP). IEEE, pp. 1-5. 10.1109/VCIP53242.2021.9675438

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Abstract

Recently, the pre-processed video transcoding has attracted wide attention and has been increasingly used in practical applications for improving the perceptual experience and saving transmission resources. However, very few works have been conducted to evaluate the performance of pre-processing methods. In this paper, we select the source (SRC) videos and various pre-processing approaches to construct the first Pre-processed and Transcoded Video Database (PTVD). Then, we conduct the subjective experiment, showing that compared with the video sent to the codec directly at the same bitrate, the appropriate pre-processing methods indeed improve the perceptual quality. Finally, existing image/video quality metrics are evaluated on our database. The results indicate that the performance of the existing image/video quality assessment (IQA/VQA) approaches remain to be improved. We will make our database publicly available soon.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Computer Science & Informatics
Publisher:	IEEE
ISBN:	978-1-7281-7322-1
ISSN:	1018-8770
Last Modified:	27 Sep 2023 15:15
URI:	https://orca.cardiff.ac.uk/id/eprint/162060

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