Content aware video quality prediction model for HEVC encoded bitstream

Content aware video quality prediction model for HEVC encoded bitstream In this paper, a novel content based video quality prediction model for High Efficiency Video Coding (HEVC) encoded video stream is proposed, which takes into account the quantization parameter (QP) and the newly proposed content type classification (CTC) metric. The CTC metric is derived by combining different types of information extracted from the encoded video sequences: temporal and spatial complexity, the standard deviation of the bitrate and the value of quantized transform coefficients. This metric can establish a logarithmic relationship with the quality of the video sequence, which is evidenced by extensive experimental results. The experimental results demonstrate that the proposed prediction model can achieve better correlation between the actual PSNR and the predicted PSNR in the training and testing process, and outperforms the other existing prediction methods in terms of accuracy. Furthermore, subjective testing results also show a good consistency between the proposed prediction metric and the subjective rankings. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Multimedia Tools and Applications Springer Journals

Content aware video quality prediction model for HEVC encoded bitstream

Content aware video quality prediction model for HEVC encoded bitstream

Multimed Tools Appl (2017) 76:19191–19209 DOI 10.1007/s11042-017-4574-4 Content aware video quality prediction model for HEVC encoded bitstream 1,2 1 1 Yongfang Wang & Kanghua Zhu & Jian Wu & Yun Zhu Received: 12 July 2016 /Revised: 9 February 2017 /Accepted: 6 March 2017 / Published online: 27 March 2017 Springer Science+Business Media New York 2017 Abstract In this paper, a novel content based video quality prediction model for High Efficiency Video Coding (HEVC) encoded video stream is proposed, which takes into account the quantization parameter (QP) and the newly proposed content type classification (CTC) metric. The CTC metric is derived by combining different types of information extracted from the encoded video sequences: temporal and spatial complexity, the standard deviation of the bitrate and the value of quantized transform coefficients. This metric can establish a logarith- mic relationship with the quality of the video sequence, which is evidenced by extensive experimental results. The experimental results demonstrate that the proposed prediction model can achieve better correlation between the actual PSNR and the predicted PSNR in the training and testing process, and outperforms the other existing prediction methods in terms of accuracy. Furthermore, subjective testing results also show a good consistency between the proposed prediction metric and the subjective rankings. . . . Keywords Content type HEVC Video complexity Quality prediction 1 Introduction Video quality prediction is a significant area in video compression community, as it aims to improve quality of service (QoS) evaluation and codec performance assessment. And it has been shown that video quality is affected by encoding parameters, network quality of service, and content type [16]. * Kanghua Zhu zhukanghuashu@163.com Key Laboratory of Advance Display and System Application, Ministry of Education, Shanghai University, Shanghai, China School of Communication and...
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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media New York
Subject
Computer Science; Multimedia Information Systems; Computer Communication Networks; Data Structures, Cryptology and Information Theory; Special Purpose and Application-Based Systems
ISSN
1380-7501
eISSN
1573-7721
D.O.I.
10.1007/s11042-017-4574-4
Publisher site
See Article on Publisher Site

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