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A new block-based coding method for HEVC intra coding
2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW), 2015 This paper presents a new block-based coding method for HEVC intra coding. Pixels in each prediction block are divided into two parts: half pixels are coded by a smart padding technique together with a constrained quantization algorithm; whereas the ...
Chen Chen 0015 +4 more
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An Efficient Intra Prediction Algorithm for HEVC Intra-coding
2020 13th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI), 2020The new generation video coding standard HEVC has as many as 35 prediction modes and more flexible coding unit (CU) sizes. Although HEVC has better coding performance, it has high computational complexity and long coding time. In real-time signal processing systems, the algorithm must be further optimized.
Yu Wang, Zhen Su
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Multiple modes intra-prediction in intra coding
2004 IEEE International Conference on Multimedia and Expo (ICME) (IEEE Cat. No.04TH8763), 2004Intra-prediction is a widely used technique in intra coding. In H.264, nine directional prediction modes are used, and in AVS (audio-video coding standard of China), six modes are used. The paper proposes a multiple mode, intra-prediction scheme to achieve a better balance between prediction precision and side information cost.
Peng Zhang 0018 +4 more
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Intra coding of AVS2 Video Coding Standard
2014 IEEE International Conference on Multimedia and Expo Workshops (ICMEW), 2014This paper gives an introduction to intra coding of the new generation of Audio Video Coding Standard (AVS2) video part, the latest video coding standard under the development of Audio Video Coding Standard (AVS) Workgroup of China. Started from the basic tools in the first generation of AVS (AVS1), new structures similar to the HEVC are employed in ...
Yinji Piao +3 more
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Adaptive intra mode bit skip in intra coding
APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems, 2008To reduce spatial redundancies in intra coding, Intra 4times4 mode provides nine directional prediction modes for every 4times4 block. In this paper, an adaptive intra mode bit skip method is proposed to improve coding efficiency in intra coding. The proposed method improves coding efficiency and reduces encoding complexity.
Dae-Yeon Kim, Ki-Hun Han, Yung Lyul Lee
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Enhancement of intra-coded pictures for greater coding efficiency
2016 Picture Coding Symposium (PCS), 2016Allocating low bit-budgets to intra-coded pictures can often lead to high quantisation and loss of important high frequency information. Coding at lower resolutions can alleviate some of this distortion when utilising effective resampling techniques and filters that minimise the additional distortion introduced as a result of spatial resampling ...
Brett Hosking +3 more
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Intra-predictive transforms for image coding
2009 IEEE International Symposium on Circuits and Systems, 2009This paper presents a new transform framework, intra-predictive transforms, for block-based image coding. The proposed framework unifies cross-block prediction and transforms within a block. Thus, it can exploit both the intra- and inter- block correlations.
Jizheng Xu +2 more
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Intra picture coding with planar representations
28th Picture Coding Symposium, 2010In this paper we introduce a novel concept for Intra coding of pictures especially suitable for representing smooth image segments. Traditional block based transform coding methods cause visually annoying blocking artifacts for image segments with gradually changing smooth content.
Jani Lainema, Kemal Ugur
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Sparse Coding of Intra Prediction Residuals for Screen Content Coding
2021 IEEE International Conference on Consumer Electronics (ICCE), 2021High Efficiency Video Coding - Screen Content Coding (HEVC-SCC) is an extension to HEVC which adds sophisticated compression methods for computer generated content. A video frame is usually split into blocks that are predicted and subtracted from the original, which leaves a residual.
Michael G. Schimpf +3 more
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Complexity Analysis Of VVC Intra Coding
2020 IEEE International Conference on Image Processing (ICIP), 2020Versatile Video Coding (VVC) is the next-generation of video coding standards, which was developed to double the coding efficiency over its predecessor High-Efficiency Video Coding (HEVC). Several new coding tools have been investigated and adopted in the VVC Test Model (VTM), whose current version can improve the intra coding efficiency by 24% at the ...
Mário Saldanha +3 more
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