Edge-based predictive scanning scheme of DCT coefficients for inter-frame video coding

2011 ◽  
Author(s):  
Xingyu Zhang ◽  
Oscar C. Au ◽  
Feng Zou ◽  
Run Cha ◽  
Jiali Li
Keyword(s):  
Video Coding ◽  
Scanning Scheme ◽  
Dct Coefficients ◽  
Edge Based ◽  
Inter Frame

Superpixel Based Inter-Frame Prediction for Video Coding

2019 ◽  
Author(s):  
Md. Eimran Hossain Eimon ◽  
Md. Zahirul Islam ◽  
Md. Shahid Uz Zaman ◽  
Md. Al Mehedi Hasan ◽  
Boshir Ahmed
Keyword(s):  
Video Coding ◽  
Inter Frame

Motion hints based inter-frame prediction for hybrid video coding

2013 ◽  
Author(s):  
Ashek Ahmmed ◽  
Md. Jahangir Alam ◽  
Mark Pickering ◽  
Rui Xu ◽  
Aous Thabit Naman ◽  
...  
Keyword(s):  
Video Coding ◽  
Inter Frame

Edge Classification Based DCT Coefficients Reorganization for Wyner-Ziv Distributed Video Coding

2013 ◽  
Vol 321-324 ◽  
pp. 1005-1010
Author(s):  
Xiao Fei Hu ◽  
Xiu Chang Zhu
Keyword(s):  
Video Coding ◽  
Discrete Cosine Transform ◽  
Distributed Video Coding ◽  
Vertical Edge ◽  
Horizontal Edge ◽  
Quantization Step ◽  
Coding Efficiency ◽  
Edge Classification ◽  
Dct Coefficients ◽  
High Bit Rate

Distributed video coding (DVC) is a novel video coding paradigm. One approach to DVC is Wyner-Ziv distributed video coding. Quantization step (QS) is one of the most important factors deciding encoder’s coding efficiency. In this paper, an edge classification based Discrete Cosine Transform (DCT) coefficients reorganization method was proposed. The block was first classified into horizontal-edge block, vertical-edge block and other block. Then different scanning order was applied to each class of blocks. In this way, larger coefficients might be grouped together and QS for Alternating Current (AC) coefficients might be reduced. Experimental results show that compared with DISCOVER’s method, the proposed method makes PSNR of reconstructed image increase about 0.5dB at high bit rate.

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