H04N 1/32245
Random or pseudorandom selection of pixels
Official title: {Random or pseudorandom selection of pixels}
H04N1/32245 (Random or pseudorandom selection of pixels) appears on 61 US grants and 47 published applications in this corpus.
Search patents in H04N- Granted patents
- 61
- Published applications
- 47
- Assignees
- 32
- Inventors
- 46
- Latest grant
- 11 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 5 |
| 2003 | 4 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 4 |
| 2006 | 5 | 3 |
| 2007 | 2 | 4 |
| 2008 | 3 | 4 |
| 2009 | 3 | 2 |
| 2010 | 5 | 3 |
| 2011 | 5 | 2 |
| 2012 | 3 | 2 |
| 2013 | 3 | 3 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 2 | 3 |
| 2021 | 3 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of printing authentication indicators with amplitude modulated halftone printing11 Feb 2025US 12,220,934 B2U-Nica Systems AG
- Method of embedding and extracting watermark data using a correction image comparison with a noise-based image in the frequency domain28 Sep 2021US 11,134,167 B2Beyontech, Inc
- Method of extracting watermark data in an image with reference to a noise-based image located in the image based on a comparison process performed in the frequency domain20 Jul 2021US 11,070,700 B2Beyontech, Inc
- Method of embedding watermark data in an image by adjusting a pixel when color channel values are above or below a threshold and based on a pixel of a transformed noise-based image being white or black6 Jul 2021US 11,057,539 B2Beyontech, Inc
- Image reading apparatus with determination of original size, and image forming apparatus, reading method, and image forming system therewith1 Sep 2020US 10,764,461 B2Canon Kabushiki Kaisha
- Anti-counterfeiting and encryption method based on local random image transformation technique8 Sep 2022US 2022/0284448 A1TONG, Qinye
- Method of Printing Authentication Indicators with Amplitude Modulated Halftone Printing12 May 2022US 2022/0150378 A1U-Nica Systems AG
- Method of Embedding and Extracting Watermark Data31 Dec 2020US 2020/0412905 A1Beyontech, Inc
- Method of Embedding and Extracting Watermark Data31 Dec 2020US 2020/0412906 A1Beyontech, Inc
- Method of Embedding and Extracting Watermark Data29 Oct 2020US 2020/0344379 A1Beyontech, Inc
Most cited
By later US patents
- Steganographic method and device844US 5,613,004 ADice Corporation · 1997
- Method and system for digital image signatures682US 5,721,788 ACorbis Corporation · 1998
- Steganographic method and device605US 5,687,236 ADice Corporation · 1997
- Method for encoding auxiliary data within a source signal283US 5,809,160 ADigimarc Corporation · 1998
- Method for image encoding209US 5,930,377 ADigimarc Corporation · 1999