Patent №
US 7,092,965
Granted
2006-08-15
Filed 2002
Owner
LIGHTSURF TECHNOLOGIES, INC.
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
10192181
A system providing methods for improved compression of images that have been compressed using Discrete Cosine Transform (DCT) based compression is described. A digital image that has been compressed using DCT based compression, such as an image compressed using the Joint Photographic Experts Group (JPEG) compression scheme, is received and partially decompressed to generate DCT coefficients of the image. The decoded coefficients of the image are then rearranged to aggregate like frequencies together. After rearrangement, the image is recompressed using a wavelet-based compression scheme.
AI classification
Ownership
LIGHTSURF TECHNOLOGIES, INC.
assignment · 131050727
Assignors
EASWAR. VEMLAT V.
On an employer assignment, the assignors are typically the inventors.