Title :
Hierarchical image coding via MSE-minimising bilinear approximation
Author :
DeNatale, F.G.B. ; Giusto, D.D.
Author_Institution :
Dept. of Biophys. & Electron. Eng., Genoa Univ., Italy
Abstract :
A new method for image-data compression is presented which is based on a hierarchical decomposition of an image into blocks with homogeneous characteristics, and on the reconstruction of the intensity function by means of a bilinear interpolation. The interpolated points are the vertices of a uniform grid and the intensity values associated with them are computed in such a way as to minimise the MSE produced by the linear approximation.
Keywords :
computerised picture processing; data compression; encoding; MSE-minimising bilinear approximation; bilinear interpolation; hierarchical decomposition; hierarchical image coding; image-data compression; reconstruction; uniform grid;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19911260
