Method, apparatus, and system for residual row noise removal
US11412164B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 2021 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Jul 11, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/134
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method, an image processing apparatus, and a non-transitory computer readable storage medium encoded with software for residual row noise removal in digital images are provided. The residual row noise is removed by dividing color plane images into vertical stripes and for each vertical stripe masking out the stripe pixels, determining a row means profile, determining a smoothed row means profile, determining row offset values for each of the horizontal stripe rows, determining corrected row offset values for horizontal stripe rows based on corresponding row offset values of adjacent vertical stripes and subtracting the corrected row offset value from the stripe pixel values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.