Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7620241 | Artifact reduction in a digital video | D. Amnon Silverstein, Qian Lin | 2009-11-17 |
| 7596265 | Segmenting pixels in an image based on orientation-dependent adaptive thresholds | Hui Chao, Luca Chiarabini | 2009-09-29 |
| 7421116 | Image processing methods and systems | Hui Chao | 2008-09-02 |
| 7386789 | Method for determining logical components of a document | Hui Chao, Lei He | 2008-06-10 |
| 7301564 | Systems and methods for processing a digital captured image | — | 2007-11-27 |
| 7151547 | Non-rectangular image cropping methods and systems | Xiaofan Lin, Hui Chao | 2006-12-19 |
| 7145676 | Compound document image compression using multi-region two layer format | — | 2006-12-05 |
| 7146054 | Method of digital image data compression and decompression | Xing Zhou | 2006-12-05 |
| 7053939 | Automatic document detection method and system | Qian Lin, Daniel R. Tretter | 2006-05-30 |
| 7017816 | Extracting graphical bar codes from template-based documents | Jonathan Yen, Daniel R. Tretter | 2006-03-28 |
| 6778299 | Error diffusion with partial dots method and system | Qian Lin, Daniel R. Tretter, Clayton Brian Atkins | 2004-08-17 |
| 6771838 | System and method for enhancing document images | — | 2004-08-03 |
| 6757081 | Methods and apparatus for analyzing and image and for controlling a scanner | Charles Jia, Anne-Marie Woodson | 2004-06-29 |
| 6621595 | System and method for enhancing scanned document images for color printing | Daniel R. Tretter, Qian Lin, Neerja Raman | 2003-09-16 |