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DJPS

Diyala Journal for Pure Science

Scientific Refereed Journal Published By College of Science - University of Diyala

 

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djps.1303.178C

Diyala Journal for Pure Science  DJPS

 

P- ISSN:2222-8373, E-ISSN:2518-9255

Volume 13, Issue 3, Part 2 , July. 2017

 

Correlated Hierarchical Autoregressive Models Image Compression

 

Ghadah Al-Khafaji, Taha Mohammed Hasan , Salam Abdulkhaleq Noaman

 

Year: 2017, Volume: 13, Issue: 3, Part: 2

 

Pages: 1-14, DOI: http://dx.doi.org/10.24237/djps.1303.178C  

 

Language: English

 

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Abstract    


  

 In this paper, a Correlated Hierarchical Autoregressive Model (CHARM) method for image compression is proposed. It based on using multi-layered modeling concept of correlated autoregressive coefficients, which is a modified version of Hierarchical Autoregressive Model (HARM). The test results indicate that the suggested techniques improve the compression ratio along with preserving the image quality compared to traditional predictive coding or autoregressive model and HARM on a series of selected images.  

 

Keywords: Image compression, autoregressive model and hierarchical autoregressive model  

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