Brightness and color matching video from multiple-camera system
US10166921B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2015 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Jul 8, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2300/303
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for adjusting color and brightness in multi-camera systems are disclosed. The system uses four cameras, having overlapping fields of view, mounted on the four sides of a vehicle. Color errors are determined for areas where the images from the rear and side cameras' fields of view overlap. Color gain factors are determined and applied for each of the side cameras (using the rear camera as “master”) to match the colors of the video outputs from the side cameras and the rear camera. The gains for the front view camera are then adjusted using gain factors based on the matched video outputs from the side view cameras using the side cameras as the “master” to the front camera “slave.” In this way, the rear camera indirectly acts as the master for the front camera and all cameras are ultimately color-matched to the rear camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.