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Lapped multiple bases algorithms for still image compression without blocking effect
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DOI：10.1109/83.623194.png)
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Abstract
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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 LOT bases, resulting in useful algorithms for low bit rate (high compression) operation without blocking effect.
Keywords:
image coding
image compression
nonorthogonal signal representation
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