Circuit for performing optical image stabilization before lens shading correction
US12316986B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2023 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | May 31, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/611
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing circuit for performing optical image stabilization before lens shading correction. The image processing circuit determines, for each row of pixels in an image captured through an image sensor receiving light through a lens having an optical center with a first offset along a first direction and a second offset along a second direction orthogonal to the first direction, a first grid offset along the first direction using the first offset and a coordinate of that row of pixels along the second direction. The image processing circuit determines, for each row of pixels in the image, a second grid offset along the second direction using the second offset and the coordinate of that row of pixels along the second direction. The image processing circuit generates an adjusted grid for the pixels of the image using the first grid offset and the second grid offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.