H04N 5/325
Image enhancement
Official title: Image enhancement, e.g. by subtraction techniques using polyenergetic X-rays
H04N5/325 (Image enhancement) appears on 90 US grants and 64 published applications in this corpus.
Search patents in H04N- Granted patents
- 90
- Published applications
- 64
- Assignees
- 42
- Inventors
- 187
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 6 |
| 2002 | 5 | 6 |
| 2003 | 3 | 7 |
| 2004 | 3 | 3 |
| 2005 | 6 | 7 |
| 2006 | 7 | 6 |
| 2007 | 1 | 2 |
| 2008 | 3 | 2 |
| 2009 | 5 | 4 |
| 2010 | 2 | 2 |
| 2011 | 3 | 1 |
| 2012 | 4 | 4 |
| 2013 | 3 | 3 |
| 2014 | 2 | 2 |
| 2015 | 1 | 0 |
| 2016 | 2 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 3 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Delta modulated baseline restoration for photon counting computed tomography21 Apr 2026US 12,607,758 B2Analog Devices, Inc.
- Systems and methods for calibrating, correcting and processing images on a radiographic detector3 Jan 2023US 11,540,803 B2Carestream Health, Inc.
- Systems and methods for calibrating, correcting and processing images on a radiographic detector23 Mar 2021US 10,952,697 B2Carestream Health, Inc.
- Radiation image capturing apparatus, radiation image capturing system, and method of controlling radiation image capturing apparatus21 Jul 2020US 10,716,522 B2Canon Kabushiki Kaisha
- Systems and methods for calibrating, correcting and processing images on a radiographic detector14 May 2019US 10,285,663 B2Carestream Health, Inc.
- Delta modulated baseline restoration for photon counting computed tomography9 Jul 2026US 2026/0194670 A1Analog Devices, Inc.
- Delta modulated baseline restoration for photon counting computed tomography16 Nov 2023US 2023/0367025 A1Analog Devices, Inc.
- X-ray diagnostic apparatus, medical image processing apparatus, and medical image processing method25 May 2023US 2023/0157657 A1Canon Medical Systems Corporation
- Systems and methods for calibrating, correcting and processing images on a radiographic detector6 Apr 2023US 2023/0105441 A1
- Systems and methods for calibrating, correcting and processing images on a radiographic detector24 Jun 2021US 2021/0186453 A1Carestream Health, Inc.
Most cited
By later US patents
- Semiconductor high-energy radiation imaging device103US 5,812,191 ASimage Oy · 1998
- Coronary tracking display77US 5,586,201 ACedars-Sinai Medical Center · 1996
- Coronary tracking display76US 5,822,391 ACedar-Sinai Medical Center · 1998
- Radiographic imaging devices, systems and methods62US 6,035,013 ASimage Oy · 2000
- Coronary tracking display57US 5,054,045 ACedars-Sinai Medical Center · 1991