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Image interpolation using wavelet based hidden Markov trees

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3 Author(s)
Kinebuchi, K. ; Sch. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA ; Muresan, D.D. ; Parks, T.W.

Hidden Markov trees in the wavelet domain are capable of accurately modeling the statistical behavior of real world signals by exploiting relationships between coefficients in different scales. The model is used to interpolate images by predicting coefficients at finer scales. Various optimizations and post-processing steps are also investigated to determine their effect on the performance of the interpolation. The interpolation algorithm was found to produce noticeably sharper images with PSNR values which outperform many other interpolation techniques on a variety of images

Published in:

Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on  (Volume:3 )

Date of Conference:

2001

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