Results 241 to 250 of about 168,325 (294)
Some of the next articles are maybe not open access.
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
openaire +1 more source
A computation and energy reduction technique for HEVC intra prediction
IEEE Transactions on Consumer Electronics, 2017 Intra prediction algorithm used in High Efficiency Video Coding (HEVC) standard has very high computational complexity. Therefore, in this paper, a novel technique is proposed for reducing amount of computations performed by HEVC intra prediction ...
Hasan Ażgin +2 more
exaly +2 more sources
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
openaire +1 more source
Intra Prediction by Template Matching
2006 International Conference on Image Processing, 2006Intra prediction is an effective method for reducing the coded information of an image or an intra frame within a video sequence. The conventional method today is to create a sample predictor block by extrapolating the reconstructed pixels surrounding the target block to be coded.
Thiow Keng Tan +2 more
openaire +1 more source
Novel intra prediction via position-dependent filtering
Journal of Visual Communication and Image Representation, 2011 This paper presents a novel intra prediction algorithm, named position-dependent filtering (PDF), to improve the intra prediction accuracy. Different from the existing schemes where the samples along one prediction direction are predicted with the same ...
Siwei Ma
exaly +2 more sources
Intra Frame Interpolation with H.264 intra prediction method
2010 International Conference on Machine Learning and Cybernetics, 2010In this paper, we propose an Intra Frame Interpolation (IFI) algorithm for video sequence with H.264 codec. It is based on H.264 intra prediction models combined with block interpolation method according to different applications. The proposed algorithm not only improves the quality of enlarged images produced by Neighborhood (NB), Bilinear (BL), or ...
Jong-Tzy Wang, Huai-Sheng Su
openaire +1 more source
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
openaire +1 more source
On secondary transforms for intra prediction residual
2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2012In this paper, we present a secondary transform that is applied in a codec after the conventional DCT for all the video-coding intra prediction modes. Our approach is applicable to any block-based intra prediction scheme that employs transforms along the horizontal and vertical direction separably.
Ankur Saxena, Felix C. A. Fernandes
openaire +1 more source
Error diffused intra prediction for HEVC
2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2015HEVC uses up to 35 prediction modes for intra prediction and it can well predict blocks with uni-directional structures or sharp edges, but the intra prediction still suffers from its discontinuous characteristics. To improve coding performance of intra prediction, the inpainting technique has been studied but it is impractical because of its high ...
Ying-Hsiu Lai, Yinyi Lin
openaire +1 more source
Secondary Intra Prediction Scheme for HEVC
2020 Data Compression Conference (DCC), 2020Conventional 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 +4 more
openaire +1 more source