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ICIP
1995
IEEE
15 years 18 days ago
Variable block size lapped transforms
A structure for implementing lapped transforms with time-varying block sizes is presented which allows full orthogonality of the transient transforms. The formulation is based on ...
Ricardo L. de Queiroz, K. Raghunath Rao
ICIP
2005
IEEE
15 years 25 days ago
JPEG 2000 scalar quantization using an optimally frequency localized modulated lapped transform
JPEG 2000 is a lossy integer-to-integer transform-based compression method that first quantizes the separable 2-D wavelet transform coefficients, then entropy codes them. The imag...
Peter C. Tay, Joseph P. Havlicek