Joint auto-exposure tone-mapping system
US12243201B2 · kind B2 · utility
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6References
20Claims
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Key dates
| Filing date | Sep 28, 2021 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Nov 27, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure describes compression of high dynamic range (HDR) images into low dynamic range (LDR) images while saving useful data in the HDR image. HDR images can be formed by merging images with different exposure times into a single image with high bit-depth to capture low light and bright data. LDR images can be generated using a joint auto-exposure and tone mapping system to capture useful details of the HDR input in and LDR output. Therefore, embodiments of the present disclosure create high quality LDR images from HDR images using data from the auto-exposure system of a sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.