Journal on Communications ›› 2018, Vol. 39 ›› Issue (2): 105-113.doi: 10.11959/j.issn.1000-436x.2018029

• Papers • Previous Articles     Next Articles

Fast bidirectionally-decodable arithmetic coding with chaotic redundancy and threshold control

Yi YAN,Guofang TU,Can ZHANG,Shaoshuai GAO,Deyuan CHEN   

  1. School of Electronic,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing 101408,China
  • Revised:2018-01-19 Online:2018-02-01 Published:2018-03-28
  • Supported by:
    The National Natural Science Foundation of China(61571416);The National Natural Science Foundation of China(61271282);Award Foundation of Chinese Academy of Sciences(2017-06-17)

Abstract:

Although the JPEG2000 compression standard has high coding efficiency,its error resistance and security can’t meet the requirements of practical application.Based on this,a fast bidirectionally-decodable arithmetic coding method with chaotic redundancy and threshold control was proposed.At the encoder,the chaotic map controlled the probabilities of multiple redundant symbols to enhance the security of arithmetic coding.At the decoder,threshold control and bidirectional decoding were combined to realize fast decoding based on maximum a posteriori estimation.Simulation results show that the proposed method improves the reconstructed image quality with better error resistance and security.

Key words: secure error resistant arithmetic coding, chaotic map, threshold control, bidirectional decoding, JPEG2000

CLC Number: 

No Suggested Reading articles found!