Title :
Near-lossless transform and wavelet compression or transient DPCM
Author :
Vaishampayan, Vinay A.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
We consider the problem of reducing the peak distortion of transform/wavelet compression schemes. A new coding scheme called transient DPCM (T-DPCM) is developed. It is shown that T-DPCM has the same asymptotic (in rate) mean squared-error (MSE) performance as the transform or wavelet compression system it is derived from (for an appropriate model). Further, it is shown that T-DPCM has significantly smaller peak distortion than the corresponding transform/wavelet coder. Results are provided for synthetic source models and for the image `Lena´
Keywords :
data compression; differential pulse code modulation; discrete cosine transforms; image coding; transform coding; transient response; wavelet transforms; Lena image; MSE performance; T-DPCM; asymptotic mean squared-error performance; image coding scheme; image compression; near-lossless transform compression; peak distortion reduction; synthetic source models; transient DPCM; wavelet compression; Atherosclerosis; Discrete wavelet transforms; Entropy coding; Image coding; Modulation coding; Pixel; Pulse modulation; Quantization; Transform coding; Wavelet transforms;
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
DOI :
10.1109/ICIP.1996.560927
