Iterative intra prediction search for H.265/HEVC

Sharabayko, Maxim P.; Марков, Николай Григорьевич

doi:10.1109/sibcon.2013.6693615

Cited by 11 publications

(6 citation statements)

References 8 publications

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“…The initial stage of the algorithm is the search for E(m) → min. As we have shown in [12] the 33 angular intra prediction modes have correlation in E(m) values making it possibly to apply optimization techniques. The lines 3-10 represent the fist search loop among nine equally distant intra prediction modes.…”

Section: Modified Fast Intra Prediction Searchmentioning

confidence: 96%

“…The modified list of intra prediction mode candidates makes it possible to state that the RMD stage aims to find the mode with least E(m) value. In our previous work [12] we introduced iterative intra prediction search scheme for RMD stage. The scheme is based on mathematical optimization of the search for the mode with least E(m) value.…”

Section: Modified Fast Intra Prediction Searchmentioning

confidence: 99%

See 1 more Smart Citation

Modified fast search for intra prediction mode in H.265/HEVC standard

Sharabayko¹,

Марков²

2015

ams

Self Cite

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The introduction of the newest H.265/HEVC video compression standard provided a wide field for different research topics. The main goal is to reduce compression and decompression complexity making the wide usage of H.265/HEVC-based systems possible. In this paper we focus on the development of fast algorithm to find intra prediction mode for a coding unit. We propose a modification of the reference algorithm that provides up to 45% speed up of compression time with only 2.49% bitrate overhead on average in "All Intra Main" configuration.

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Section: Modified Fast Intra Prediction Searchmentioning

confidence: 96%

Section: Modified Fast Intra Prediction Searchmentioning

confidence: 99%

Modified fast search for intra prediction mode in H.265/HEVC standard

Sharabayko¹,

Марков²

2015

ams

Self Cite

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“…Maxim P. Sharabayko et al (2013) [8] presents iterative method for intra mode decision. It makes use of at the most 15 angular modes instead of all 35 modes.…”

Section: Fig 1: Reference Array For Hevc Intrapredictionmentioning

confidence: 99%

H.265 Intra-Picture Prediction Acceleration using Low Complexity Model

Pawar¹,

Sawarkar²

2019

IJITEE

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H.265 also called High Efficiency Video Coding is the new futuristic international standard proposed by Joint collaboration Team on Video Coding and released in 2013 in the view of constantly increasing demand of video applications. This new standard reduces the bitrate to half as compared to its predecessor H.264 at the expense of huge amount of computational burden on the encoder. In the proposed work we focus on intraprediction phase of video encoding where 33 new angular modes are introduced in addition to DC and Planar mode in order to achieve high quality videos at higher resolutions. We have proposed the use of applied machine learning to HEVC intra prediction to accelerate angular mode decision process. The features used are also low complexity features with minimal computation so as to avoid any additional burden on the encoder. The Decision tree model built is simple yet efficient which is the requirement of the complexity reduction scenario. The proposed method achieves substantial average encoding time saving of 86.59%, with QP values 4,22,27,32 respectively with minimal loss of 0.033 of PSNR and 0.0023 loss in SSIM which makes it suitable for acceptance of High Efficiency Video coding in real time applications

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“…Iterative intra prediction search in [16] was proposed for the H.265/HEVC encoder to reduce the number of prediction modes for estimation: about 40% encoding time reduction for HM 10.1 intra-only coding with negligible bitrate increase and PSNR quality degradation. Additional speed-up techniques, including fast prediction error estimation, were offered.…”

Section: H265 Video Codecmentioning

confidence: 99%