Title :
Locally adaptive wavelet-based image interpolation
Author :
S.G. Chang;Z. Cvetkovic;M. Vetterli
Author_Institution :
Hewlett-Packard Taiwan Ltd., Taipei, Taiwan
Abstract :
We describe a spatially adaptive algorithm for image interpolation. The algorithm uses a wavelet transform to extract information about sharp variations in the low-resolution image and then implicitly applies interpolation which adapts to the image local smoothness/singularity characteristics. The proposed algorithm yields images that are sharper compared to several other methods that we have considered in this paper. Better performance comes at the expense of higher complexity.
Keywords :
"Interpolation","Wavelet transforms","Image edge detection","Signal processing algorithms","Data mining","Computer vision","Algorithm design and analysis","Wavelet analysis","Adaptive algorithm"
Journal_Title :
IEEE Transactions on Image Processing
DOI :
10.1109/TIP.2006.871162