Image dehazing and restoration
US10885611B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Apr 6, 2017 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Oct 29, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20061
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods for dehazing a digital image and for restoring an underwater digital image. The methods include the following steps: First, clustering pixels of a digital image into haze-lines, wherein each of the haze-lines is comprised of a sub-group of the pixels that are scattered non-locally over the digital image. Second, estimating, based on the haze-lines, a transmission map of the digital image, wherein the transmission map encodes scene depth information for each pixel of the digital image. Then, for a hazy image, calculating a dehazed digital image based on the transmission map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.