Tile Adaptation for Workload Balancing of 3D-HEVC Encoder in Homogeneous Multicore Systems

Saldanha, Mário; Sanchez, Gustavo; Marcon, César; Agostini, Luciano

doi:10.1109/tcsi.2020.2977297

Cited by 2 publications

(4 citation statements)

References 36 publications

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“…In these figures, circle markers belong to the proposed method, while the diamond is for the standard HEVC. Both results show that the proposed method was superior to standard HEVC [4,5,15,25] in all simulated quantization parameters in terms of PSNR. Each QP is written inside the corresponding marker for better comparison.…”

Section: Resultsmentioning

confidence: 75%

“…For performance evaluations, the proposed method is implemented using a combination of HEVC reference codec version 16.18 [25] and an added function of MATLAB 2018 software. The evaluations was also performed on a computer with a Intel Core i7-9700 CPU (3.00 GHz) and 64GB RAM.…”

Section: Resultsmentioning

confidence: 99%

“…The evaluations was also performed on a computer with a Intel Core i7-9700 CPU (3.00 GHz) and 64GB RAM. The runtime and output of the HEVC standard codec based on [4,5,15,25] real-imaginary or amplitude-phase images because there are two parts of data in 3D images where the results may be different on these parts. All DH samples belong to the Interfere I and II datasets [26], [27].…”

Section: Resultsmentioning

confidence: 99%

“…The method has also led to a decrease in hologram quality in comparison to the standard codec. Saldanha et al [25] used tile adaptation to balance the computational load of the HEVC encoder on the holographic image. This method, which speeded up the HEVC codec via parallel processing, has been tested on a multi-core system.…”

Section: Other Methodsmentioning

confidence: 99%

See 3 more Smart Citations

A novel high-efficiency holography image compression method, based on HEVC, Wavelet, and nearest-neighbor interpolation

Hajihashemi

Najafabadi

Gharahbagh

et al. 2021

Multimed Tools Appl

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One of the critical challenges facing 3D video systems and images such as holography lies in their compression technique. High-efficiency video coding (HEVC) has emerged as one of the leading schemes to address this challenge. In this article, a novel method based on wavelet transform is presented to improve HEVC, particularly in digital holography systems (object plane). In this regard, wavelet and resizing are included in the coding process, while extra HEVC decoders and encoders are added to predict and decrease errors in the target. Simulation results reveals that the proposed algorithm reduces Bjøntegaard-Delta (BD) bitrate 17.5% (based on average BD-Rate values) compared to the original HEVC (H.265) scheme while maintaining signal fidelity and even enhancing it slightly. We observe an increased BDpeak-signal-to-noise ratio (BD-PSNR) in real and imaginary parts of digital holograms of high rate quantization values up to 1.1 dB.

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Section: Resultsmentioning

confidence: 75%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Other Methodsmentioning

confidence: 99%

See 2 more Smart Citations

A novel high-efficiency holography image compression method, based on HEVC, Wavelet, and nearest-neighbor interpolation

Hajihashemi

Najafabadi

Gharahbagh

et al. 2021

Multimed Tools Appl

View full text Add to dashboard Cite

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Traffic Reduction for Speculative Video Transmission in Cloud Gaming Systems

Ishioka,

Fukui,

Fujiwara

et al. 2024

IEICE Trans. Commun.

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Cloud gaming systems allow users to play games that require high-performance computational capability on their mobile devices at any location. However, playing games through cloud gaming systems increases the Round-Trip Time (RTT) due to increased network delay. To simulate a local gaming experience for cloud users, we must minimize RTTs, which include network delays. The speculative video transmission pre-generates and encodes video frames corresponding to all possible user inputs and sends them to the user before the user's input. The speculative video transmission mitigates the network, whereas a simple solution significantly increases the video traffic. This paper proposes tile-wise delta detection for traffic reduction of speculative video transmission. More specifically, the proposed method determines a reference video frame from the generated video frames and divides the reference video frame into multiple tiles. We calculate the similarity between each tile of the reference video frame and other video frames based on a hash function. Based on calculated similarity, we determine redundant tiles and do not transmit them to reduce traffic volume in minimal processing time without implementing a high compression ratio video compression technique. Evaluations using commercial games showed that the proposed method reduced 40-500/o in traffic volume when the SSIM index was around 0.98 in certain genres, compared with the speculative video transmission method. Furthermore, to evaluate the feasibility of the proposed method, we investigated the effectiveness of network delay reduction with existing computational capability and the requirements in the future. As a result, we found that the proposed scheme may mitigate network delay by one to two frames, even with existing computational capability under limited conditions.

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Tile Adaptation for Workload Balancing of 3D-HEVC Encoder in Homogeneous Multicore Systems

Cited by 2 publications

References 36 publications

A novel high-efficiency holography image compression method, based on HEVC, Wavelet, and nearest-neighbor interpolation

A novel high-efficiency holography image compression method, based on HEVC, Wavelet, and nearest-neighbor interpolation

Traffic Reduction for Speculative Video Transmission in Cloud Gaming Systems

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