Patent №
US 6,301,368
Granted
2001-10-09
Filed 1999
Owner
IBM CORPORATION
Lab
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
09240446
A method to hide small messages in a wavelet compressed fingerprint image is presented. The method is characterized by random placement of the message bits in the compressed and quantized indices. The compressed image can be decompressed by any certified decompressor without any visible difference. However, the decoder aware of the decompression can only retrieve the hidden message in the image and additionally decompress the image without any error in pixel values.
AI classification
Ownership
IBM CORPORATION
assignment · 97420895
Assignors
BOLLE, RUDOLF M., CONNELL, JONATHAN H., RATHA, NALINI K.
On an employer assignment, the assignors are typically the inventors.