Title :
LOT coding for arbitrarily shaped object regions
Author :
Sohn, Young Wook ; Park, Rae-Hong
Author_Institution :
Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea
fDate :
2/1/2001 12:00:00 AM
Abstract :
Two coding methods for arbitrarily shaped objects in still images using the lapped orthogonal transform (LOT) are proposed. The LOT is applied to the projection onto convex sets (POCS) based algorithm and the shape adaptive-discrete cosine transform (SA-DCT) with the even number of basis vectors. Simulation results show improved reconstruction quality compared with the conventional methods
Keywords :
discrete cosine transforms; image coding; image reconstruction; transform coding; LOT coding; POCS based algorithm; arbitrarily shaped object regions; basis vectors; image reconstruction quality; lapped orthogonal transform; projection onto convex sets; shape adaptive-discrete cosine transform; simulation results; still images; Discrete cosine transforms; Image coding; Image reconstruction; Pixel; Shape; Standardization; Video coding;
Journal_Title :
Image Processing, IEEE Transactions on
