Efficient Software HEVC to AVS2 Transcoding

Chen, Yucong; Zhou, Yun; Wen, Jiangtao

doi:10.3390/info7030053

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…Fuzzy logic controllers (FLCs) have been widely used for MPPT application in the literature [28]- [31]. Every FLC consists of three parts; fuzzification, fuzzy rule tables and defuzzification.…”

Section: Fuzzy Logic Control Based Mppt Methodsmentioning

confidence: 99%

Conventional and Soft-Computing Based MPPT Methods Comparisons in Direct and Indirect Modes for Single Stage PV Systems

Kandemir¹,

Börekçi²,

Çetin³

2018

ElAEE

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Improving power efficiency for a Photovoltaic (PV) system becomes important issue for researchers. To achieve maximum power extraction from PV panels, different kinds of Maximum Power Point Tracking (MPPT) methods have been investigating in the literature. In all techniques, direct and indirect mode approaches can be implemented. Based on the physical application of the PV system under different condition, the efficiency and convergence speed become important. In this paper, a grid connected simple single stage PV system by using different MPPT methods in direct and indirect modes has been analysed to find out the best mode and technique for a specific PV system application. Three of the most preferred MPPT algorithms: the perturb & observe (P&O), incremental conductance (Inc. Cond.) and fuzzy logic control (FLC) have been performed in MATLAB Simulink and compared their performance in direct and indirect modes in terms of convergence speed and tracking accuracy by the proposed single stage PV system. The results show that direct mode MPPTs have better tracking accuracy but less convergence speed than indirect MPPTs. Therefore, indirect mode MPPTs present better performance for the rapid atmospheric changing applications. Additionally, FLC based MPPT exhibits almost best tracking performance for direct and indirect modes.

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Section: Fuzzy Logic Control Based Mppt Methodsmentioning

confidence: 99%

Conventional and Soft-Computing Based MPPT Methods Comparisons in Direct and Indirect Modes for Single Stage PV Systems

Kandemir¹,

Börekçi²,

Çetin³

2018

ElAEE

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“…Nonetheless, a number of interesting transcoding solutions are reported for HEVC into non-ISO standardized coder are reported. For instance, in [10] a HEVC to Audio Visual Standard version 2 (AVS2) transcoder is proposed which decodes the incoming video in multi-stages to make use of HEVC information in the transcoding process. The authors reported speedup in the range of 11 × to 17 × over AVS2 reference software.…”

Section: Literature Reviewmentioning

confidence: 99%

Predicting split decisions in MPEG-2 to HEVC video transcoding

Shanableh

Hassan²

2020

SN Appl. Sci.

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This paper proposes learning-based approaches for transcoding videos compressed using the Moving Picture Experts Group 2 format into the High Efficiency Video Coding (HEVC) format. In the training mode of the transcoder, mappings between extracted features and split decisions are calculated. While in the transcoding mode, the split decisions of Coding Units of the HEVC video are predicted. Two formulations are proposed for the prediction of split decisions based on multi model and multi-tier solutions. In the former solution, multi models are generated based on the total number of split flags in a coding unit. While in the latter solution, split decisions are modelled at three different coding depths. The proposed solutions are evaluated in terms of excessive bitrate, drop in PSNR, classification accuracy, model generation time and transcoding speedup. It is shown that the multi-tier solution maintains the rate-distortion behaviour of full re-encoding at the expense of lower gain in transcoding speedup. In comparison to existing work, it is shown that the proposed solutions offer a significant enhancement in terms of rate-distortion performance and classification accuracy.

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A Novel Search Area Data Reuse Method for Memory Access Optimization of Fast Search Motion Estimation

Fang-ai

2018

IEEE Access

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Efficient Software HEVC to AVS2 Transcoding

Cited by 5 publications

References 16 publications

Conventional and Soft-Computing Based MPPT Methods Comparisons in Direct and Indirect Modes for Single Stage PV Systems

Conventional and Soft-Computing Based MPPT Methods Comparisons in Direct and Indirect Modes for Single Stage PV Systems

Predicting split decisions in MPEG-2 to HEVC video transcoding

A Novel Search Area Data Reuse Method for Memory Access Optimization of Fast Search Motion Estimation

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