Synthesis-Distortion-Aware Hybrid Digital Analog Transmission for 3D Videos

Li, Peihao; Yang, Fengbao; Zhang, Jing; Guan, Yun; Wang, Anhong; Liang, Jie

doi:10.1109/access.2020.2990198

Cited by 7 publications

(2 citation statements)

References 18 publications

(33 reference statements)

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“…In fact, Hybrid Digital Analog (HDA) coding can be viewed as another form of JSCC. Recently, some works using HDA coding for UHD and 3D videos transmission are emerging [33,36]. Deep learning based approaches have been investigated to improve the JSCC and JSCD [7,31,34], which brought interesting inspirations and performance improvements.…”

Section: Related Work 21 General Jscd Jscc and Cross-layer Schemesmentioning

confidence: 99%

Joint Source-Channel Decoding of Polar Codes for HEVC-Based Video Streaming

Lin

Zhang

et al. 2022

ACM Trans. Multimedia Comput. Commun. Appl.

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Ultra High-Definition (UHD) and Virtual Reality (VR) video streaming over 5G networks are emerging, in which High-Efficiency Video Coding (HEVC) is used as source coding to compress videos more efficiently and polar code is used as channel coding to transmit bitstream reliably over an error-prone channel. In this article, a novel Joint Source-Channel Decoding (JSCD) of polar codes for HEVC-based video streaming is presented to improve the streaming reliability and visual quality. Firstly, a Kernel Density Estimation (KDE) fitting approach is proposed to estimate the positions of error channel decoded bits. Secondly, a modified polar decoder called R-SCFlip is designed to improve the channel decoding accuracy. Finally, to combine the KDE estimator and the R-SCFlip decoder together, the JSCD scheme is implemented in an iterative process. Extensive experimental results reveal that, compared to the conventional methods without JSCD, the error data-frame correction ratios are increased. Averagely, 1.07% and 1.11% Frame Error Ratio (FER) improvements have been achieved for Additive White Gaussian Noise (AWGN) and Rayleigh fading channels, respectively. Meanwhile, the qualities of the recovered videos are significantly improved. For the 2D videos, the average Peak Signal-to-Noise Ratio (PSNR) and Structural SIMilarity (SSIM) gains reach 14% and 34%, respectively. For the 360֯ videos, the average improvements in terms of Weighted-to-Spherically-uniform PSNR (WS-PSNR) and Voronoi-based Video Multimethod Assessment Fusion (VI-VMAF) reach 21% and 7%, respectively.

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Section: Related Work 21 General Jscd Jscc and Cross-layer Schemesmentioning

confidence: 99%

Joint Source-Channel Decoding of Polar Codes for HEVC-Based Video Streaming

Lin

Zhang

et al. 2022

ACM Trans. Multimedia Comput. Commun. Appl.

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“…Here, the reconstructions of the digitally coded frames are used as side information to further remove redundant information from the analog-coded frames. Another study [183] extends HDA delivery for MVD videos and solves the view synthesis optimization to yield the best quality from an intermediate virtual viewpoint. HoloCast+ in [184] designs HDA delivery for point cloud delivery.…”

Section: A Hybrid Digital-analog Deliverymentioning

confidence: 99%

Soft Delivery: Survey on A New Paradigm for Wireless and Mobile Multimedia Streaming

Fujihashi¹,

Koike‐Akino²,

Watanabe³

2021

Preprint

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The increasing demand for video streaming services is the key driver of modern wireless and mobile communications. For robust and high-quality delivery of video content over wireless and mobile networks, the main challenge is sending image and video signals to single and multiple users over unstable and diverse channel environments. To this end, many studies have designed digital-based video delivery schemes, which mainly consist of a sequence of digital-based coding and transmission schemes. Although digital-based schemes perform well when the channel characteristics are known in advance, significant quality degradation, known as cliff and leveling effects, often occurs owing to the fluctuating channel characteristics. To prevent cliff and leveling effects irrespective of the channel characteristics of each user, a new paradigm for wireless and mobile video streaming has been proposed. Soft delivery schemes skip the digital operations of quantization and entropy and channel coding while directly mapping the power-assigned frequency-domain coefficients onto the transmission symbols. This modification is based on the fact that the pixel distortion due to communication noise is proportional to the magnitude of the noise, resulting in graceful quality improvement, wherein quality is improved gradually, according to the wireless channel quality without any cliff and leveling effects. Herein, we present a comprehensive summary of soft delivery schemes. First, we provide a brief introduction on wireless and mobile video streaming. Second, we discuss the issues associated with conventional digital-based video delivery schemes. Third, an overview of soft delivery is presented, and then the state of the art in soft delivery is summarized by considering energy compaction, power allocation, bandwidth utilization, and packet loss resilience. Finally, an excursion on the extensions needed for immersive content and future research directions are provided.

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Soft transmission of 3D video for low power and low complexity scenario

Yang

et al. 2023

Digital Communications and Networks

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Synthesis-Distortion-Aware Hybrid Digital Analog Transmission for 3D Videos

Cited by 7 publications

References 18 publications

Joint Source-Channel Decoding of Polar Codes for HEVC-Based Video Streaming

Joint Source-Channel Decoding of Polar Codes for HEVC-Based Video Streaming

Soft Delivery: Survey on A New Paradigm for Wireless and Mobile Multimedia Streaming

Soft transmission of 3D video for low power and low complexity scenario

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