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End User Video Quality Prediction and Coding Parameters Selection at the Encoder for Robust HEVC Video Transmission

Kulupana, Gosala, Talagala, Dumidu S, Arachchi, Hemantha Kodikara and Fernando, Anil (2018) End User Video Quality Prediction and Coding Parameters Selection at the Encoder for Robust HEVC Video Transmission IEEE Transactions on Circuits and Systems for Video Technology.

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Abstract—Along with the rapid increase in the availability for high quality video formats such as HD (High Definition), UHD (Ultra HD) and HDR (High Dynamic Range), a huge demand for data rates during their transmission has become inevitable. Consequently, the role of video compression techniques has become crucially important in the process of mitigating the data rate requirements. Even though the latest video codec HEVC (High Efficiency Video Coding) has succeeded in significantly reducing the data rate compared to its immediate predecessor H.264/AVC (Advanced Video Coding), the HEVC coded videos in the meantime have become even more vulnerable to network impairments. Therefore, it is equally important to assess the consumers’ perceived quality degradation prior to transmitting HEVC coded videos over an error prone network, and to include error resilient features so as to minimize the adverse effects those impairments. To this end, this paper proposes a probabilistic model which accurately predicts the overall distortion of the decoded video at the encoder followed by an accurate QP-λ relationship which can be used in the RDO (Rate Distortion Optimization) process. During the derivation process of the probabilistic model, the impacts from the motion vectors, the pixels in the reference frames and the clipping operations are accounted and consequently the model is capable of minimizing the prediction error as low as 3.11% whereas the state-of-theart methods can’t reach below 20.08% under identical conditions. Furthermore, the enhanced RDO process has resulted in 21.41%- 43.59% improvement in the BD-rate compared to the state-ofthe-art error resilient algorithms.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Talagala, Dumidu S
Arachchi, Hemantha Kodikara
Date : 23 October 2018
Copyright Disclaimer : Copyright © 2019 IEEE. Personal use of this material is permitted. However, permission to use this material for any other purposes must be obtained from the IEEE by sending an email to
Uncontrolled Keywords : HEVC, error resilient video coding, AMVP, error concealment.
Depositing User : Rebecca Cooper
Date Deposited : 07 Jan 2019 15:28
Last Modified : 07 Jan 2019 15:35

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