Title :
A new method for complete-to-overcomplete discrete wavelet transforms
Author :
Andreopoulos, Yiannis ; Munteanu, Adrian ; Van der Auwera, Geert ; Schelkens, Peter ; Cornelis, J.
Author_Institution :
Vrije Univ., Brussels, Belgium
Abstract :
Overcomplete discrete wavelet transforms (ODWT) are used in a number of applications because they provide shift invariance, a property extremely useful in wavelet-based image processing and video coding. In this paper, we propose a new construction of the ODWT starting from the subbands of the critically sampled (complete) DWT. The most straightforward application of our theory is scalable video coding with in-band prediction, for which it has been shown that the proposed method achieves lower complexity.
Keywords :
discrete wavelet transforms; image sampling; video coding; ODWT; complete-to-overcomplete discrete wavelet transforms; complexity; critically sampled DWT; image processing; in-band prediction; scalable video coding; shift invariance; subbands; Concurrent computing; Discrete wavelet transforms; Filtering; Filters; Image processing; Image reconstruction; Motion estimation; Parallel processing; Production; Video coding;
Conference_Titel :
Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on
Print_ISBN :
0-7803-7503-3
DOI :
10.1109/ICDSP.2002.1028137
