吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (增刊1): 345-351.

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All phases U transform for image interpolation

GUO Fen-hong1, XIONG Chang-zhen1, XIONG Gang-qiang2   

  1. 1. College of Mathematics, North China University of Technology, Beijing 100144, China;
    2. Department of Mathematics and Computer, Guangdong Medical College, Dongguan 523808, China
  • Received:2012-05-20 Published:2013-06-01

Abstract:

Two dimensional all phase image interpolation template with standard diamond-shaped support was constructed.Using all phase linear filter theory and orthogonal U transform's sequence characteristics,we deduced all phase U sequence filter was deduced,and then image interpolation template was constructed.According to the constructed template,a new image interpolation algorithm was proposed.The experimental result shows that the proposed method is optimal compared with bicubic interpolation and the other image interpolation methods based on all phase filter.

Key words: all phase digital filter, orthogonal transform, U transform, image interpolation

CLC Number: 

  • TP391

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