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Title

SSIM- Based Fuzzy Video Rate Controller for Variable Bit Rate Applications of Scalable HEVC

Year: 1398
COI: JR_JIST-7-3_002
Language: EnglishView: 188
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Authors

Farhad Raufmehr - Department of Communications Engineering, University of Sistand and Baluchestan, Zahedan, Iran
Mehdi Rezaei - Department of Communications Engineering, University of Sistand and Baluchestan, Zahedan, Iran

Abstract:

Scalable High Efficiency Video Coding (SHVC) is the scalable extension of the latest video coding standard H.۲۶۵/HEVC. Video rate control algorithm is out of the scope of video coding standards. Appropriate rate control algorithms are designed for various applications to overcome practical constraints such as bandwidth and buffering constraints. In most of the scalable video applications, such as video on demand (VoD) and broadcasting applications, encoded bitstreams with variable bit rates are preferred to bitstreams with constant bit rates. In variable bit rate (VBR) applications, the tolerable delay is relatively high. Therefore, we utilize a larger buffer to allow more variations in bitrate to provide smooth and high visual quality of output video. In this paper, we propose a fuzzy video rate controller appropriate for VBR applications of SHVC. A fuzzy controller is used for each layer of scalable video to minimize the fluctuation of QP at the frame level while the buffering constraint is obeyed for any number of layers received by a decoder. The proposed rate controller utilizes the well-known structural similarity index (SSIM) as a quality metric to increase the visual quality of the output video. The proposed rate control algorithm is implemented in HEVC reference software and comprehensive experiments are executed to tune the fuzzy controllers and also to evaluate the performance of the algorithm. Experimental results show a high performance for the proposed algorithm in terms of rate control, visual quality, and rate-distortion performance.

Keywords:

Fuzzy Control, Quality, Rate, Scalable high-efficiency video coding (SHVC), SSIM, Variable bit rate (VBR)

Paper COI Code

This Paper COI Code is JR_JIST-7-3_002. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1142417/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Raufmehr, Farhad and Rezaei, Mehdi,1398,SSIM- Based Fuzzy Video Rate Controller for Variable Bit Rate Applications of Scalable HEVC,https://civilica.com/doc/1142417

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Type of center: دانشگاه دولتی
Paper count: 10,116
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