Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6556689 | Watermarking methods for digital images and videos | Xiang-Gen Xia, Gonzalo R. Arce | 2003-04-29 |
| 6557103 | Spread spectrum image steganography | Lisa Marvel, Charles T. Retter | 2003-04-29 |