Signal processing device to generate low noise image signal in low light intensity environment
US10321022B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 2015 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | May 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2209/047
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To generate a low noise image signal, even in image capturing in a low light intensity environment. In a signal processing device of an image capturing device; a noise reduction section removes noise from one of an invisible light signal and a color difference signal and from a luminance signal, and generates a group of signals from which noise is removed; and an image signal generation section generates an image signal including an adjusted luminance signal and an adjusted color difference signal at a ratio that is substantially equal to a ratio between the luminance signal and the color difference signal by adjusting the luminance signal and the color difference signal, and generates one of the adjusted luminance signal and the adjusted color difference signal based on the invisible light signal and the group of signals from which the noise is removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.