Results 291 to 300 of about 568,973 (334)

Distance based intra prediction method

NSIP 2005. Abstracts. IEEE-Eurasip Nonlinear Signal and Image Processing, 2005., 2005
Summary form only given. The paper designs a distance based intra prediction scheme using the correlation of spatial pixels. In the H.264 standard, the vertical mode lets the predicted pixels be equal to the upper pixel in the neighbouring macroblock. However, if the current block is at the very edge of a moving object or the edge between two objects ...
null PengFei Ji, null BaoCai Yin, null DeHui Kong, null Lei Sun   +3 more
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Multi-mode based intra prediction coding

2015 8th International Congress on Image and Signal Processing (CISP), 2015
In multi-mode based data processing schemes, the most appropriate mode is selected as the one for application under the comparison of different kinds of available modes, it has been applied in scanning image quantized coefficients and image prediction coding maturely to improve the processing efficiency and coding efficiency.
Wei Zheng, Long Ye, Fei Hu, Jingling Wang, Qin Zhang   +4 more
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Intra predictive transform coding based on predictive graph transform

2013 IEEE International Conference on Image Processing, 2013
In this paper, we propose a new intra-frame coding approach using the predictive graph transform (PGT). The predicted block together with the reference pixels are modeled as a normal distributed random vector with respect to a graph whose edges represent the correlations between pixels. This model is more flexible than the Gaussian Markov random field (
Yongzhe Wang, Antonio Ortega, Gene Cheung   +2 more
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Secondary Intra Prediction Scheme for HEVC

2020 Data Compression Conference (DCC), 2020
Conventional intra prediction usually utilizes the top and left reconstructed reference samples of the current block to generate prediction pixels. However, with the distance between reference samples and the predicting pixel increasing, the correlation of them becomes weaker. The loss of the bottom-right corner of the current block is bigger than that
Junhui Liang, Yamei Chen, Hongkui Wang, Hailang Yang, Li Yu   +4 more
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Fast template matching for intra prediction

2017 IEEE International Conference on Image Processing (ICIP), 2017
Intra prediction is an important step in video coding, where spatial redundancy is exploited for coding efficiency. The state-of-the-art H.265/High Efficiency Video Coding (HEVC) standard provides 35 intra prediction modes including 33 angular modes and a DC as well as a Planar mode. Although these intra prediction methods are quite efficient, there is
Gayathri Venugopal, Philipp Merkle, Detlev Marpe, Thomas Wiegand   +3 more
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Parallel intra prediction for video coding

28th Picture Coding Symposium, 2010
In this paper, we propose an intra-prediction system that is both parallel friendly and with high coding efficiency. This is achieved by combining a novel prediction strategy that reduces serial dependencies and a novel, multi-directional and adaptive prediction system.
Andrew Segall, Jie Zhao, Iomoyuki Yamamoto   +2 more
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Intra Prediction via Edge-Based Inpainting

Data Compression Conference (dcc 2008), 2008
We investigate the usage of edge-based inpainting as an intra prediction method in block-based image compression. The joint utilization of edge information and the well-known Laplace equation yields a simple and effective inpainting algorithm. As for intra prediction, the edge-based inpainting is a uniform solution, yet adaptive to local image features.
Dong Liu, Xiaoyan Sun, Feng Wu
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Improved intra prediction mode-decision method

Visual Communications and Image Processing 2005, 2005
An improved intra-prediction method for AVS-M, which is developed by AVS (Audio Video Coding Standard Working Group of China) to meet the requirements of multimedia applications in next-generation mobile communications, is proposed in this paper. Utilizing the spatial and temporal correlation of the video sequences, the proposed method only processes a
Zhenming Zhang, Guangxi Zhu, Shengkui Dai, Feng Wang, Lei Xie   +4 more
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Adaptive spatial prediction in intra coding

Proceedings of 2010 IEEE International Symposium on Circuits and Systems, 2010
In this paper, a novel spatial prediction method is proposed to improve prediction accuracy and capture the dynamics of different video contents. The method adaptively generates optimized spatial prediction modes according to the local feature of coded image.
Yu Chen, Lu Yu
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Edge-based Adaptive Directional Intra Prediction

28th Picture Coding Symposium, 2010
H.264/AVC employs intra prediction to reduce spatial redundancy between neighboring blocks. Different directional prediction modes are used to cater diversified video content. Although it achieves quite high coding efficiency, it is desirable to analyze its drawbacks in the existing video coding standard, since it allows us to design better ones ...
Feng Zou, Oscar C. Au, Jingjing Dai, Chao Pang, Wen Yang, Xing Wen, Yu Liu   +6 more
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