Efficient storage for production of high dynamic range images
US10467732B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2017 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Apr 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus and computer programs are provided for storing a set of sensor output images for multi-exposure high dynamic range processing to produce a processed image. The multi-exposure high dynamic range processing combines pixel values from one or more of the sensor output images to produce the processed image. In one example, a method comprises receiving from an image sensor a first sensor output image. The first sensor output image has a first exposure. The method also comprises receiving from the image sensor a second sensor output image. The second sensor output image has a second exposure different than the first exposure. First image pixels of the first sensor output image having pixel values which are unlikely to have a substantial contribution to the processed image are identified, and the amount of information stored in relation to the first image pixels is reduced on the basis of the identifying step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.