The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2003
Filed:
Mar. 30, 1998
Glen Patrick Abousleman, Scottsdale, AZ (US);
General Dynamics Decision Systems, Inc., Scottsdale, AZ (US);
Abstract
A hyperspectral image encoder ( ) for compressing hyperspectral imagery includes a differential pulse code modulation (DPCM) loop ( ) to perform data decorrelation in the spectral domain and a discrete wavelet transform (DWT) processing means ( ) to perform decorrelation in the spatial domain. The DPCM loop ( ) determines an error image between a present image at the input of the encoder ( ) and a predicted image. The DWT processing means ( ) then divides the error image into a plurality of frequency subbands and quantizes information within the subbands in accordance with a plurality of predetermined quantization states to provide a coded output signal. In one embodiment, an interband predictor ( ) is provided to predict an image, for use in calculating the error image, using the coded output signal.