Inverse discrete wavelet transforms for data decompression

Details Inverse discrete wavelet transforms for data decompression Inverse discrete wavelet transforms for data decompression

2006-07-04

2006-07-04

Tran, Phuoc (Department: 2621)

Image analysis

Image compression or coding

Including details of decompression

24

Reexamination Certificate

active

07072517

ABSTRACT:
A method inverse discrete wavelet transforms subband data in segments and maintains a state between segments. The method selects one of a plurality of different computational procedures for performing the inverse DWT by testing the state and the subset of the current segment of subband data to determine if a current segment can be inverse transformed with a reduced computation procedure. If the test is positive the method performs the inverse DWT using the reduced computation procedure; otherwise the method performs the inverse DWT of the segment using another procedure.

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