Method and system to increase X-Y resolution in a depth (Z) camera using red, blue, green (RGB) sensing
US8134637B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2006 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Aug 22, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging system substantially simultaneously acquires z-depth and brightness data from first sensors, and acquires higher resolution RGB data from second sensors, and fuses data from the first and second sensors to model an RGBZ image whose resolution can be as high as resolution of the second sensors. Time correlation of captured data from first and second sensors is associated with captured image data, which permits arbitrary mapping between the two data sources, ranging from 1:many to many:1. Preferably pixels from each set of sensors that image the same target point are mapped. Many z-depth sensor settings may be used to create a static environmental model. Non-correlative and correlative filtering is carried out, and up-sampling to increase z-resolution occurs, from which a three-dimensional model is constructed using registration and calibration data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.