High dynamic range image sensing method for image sensing device
US10855931B1 · kind B1 · utility
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6Claims
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Key dates
| Filing date | Nov 7, 2019 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Nov 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/583
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high dynamic range image sensing method for an image sensing device is provided. The high dynamic range image sensing method comprises: calculating a brightness sum value of a pixel block to obtain a long exposure value; calculating a brightness average value of the pixel block to obtain a short exposure value; calculating a block average value of a plurality of adjacent pixel blocks; obtaining a weight value according to the block average value; and outputting a high dynamic range pixel value of one pixel according to the long exposure value, the short exposure value and the weight value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.