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Lapped multiple bases algorithms for still image compression without blocking effect

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3 Author(s)
DeBrunner, V.E. ; Sch. of Electr. Eng., Oklahoma Univ., Norman, OK, USA ; Lixiang Chen ; Hong-Jian Li

We describe a system for still image compression that uses several transform sets in a multiple bases realization algorithm. Our algorithms reduce the number of encoded transform coefficients 20% beyond DCT-only compression. We extend these algorithms to use several newly developed lapped orthogonal transform (LOT) bases, resulting in useful algorithms for low bit rate (high compression) operation without blocking effect

Published in:

Image Processing, IEEE Transactions on  (Volume:6 ,  Issue: 9 )

Date of Publication:

Sep 1997

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