Image processing apparatus and image processing method
US8970719B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jun 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/743
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Based on pixel value conversion coefficients, a pixel value converter converts pixel values of image signals obtained by imaging a same subject a plurality of times while mutually differentiating an exposure value. A synthesizing/weighting coefficient creation unit creates a synthesizing/weighting coefficient. A difference creation unit creates short-time exposure image data and long-time exposure image data. A weighting/synthesizing unit synthesizes the short-time exposure image data and the long-time exposure image data by using the synthesizing/weighting coefficient. A controller evaluates the difference, and updates the pixel value conversion coefficient so that the difference becomes smaller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.