Recording of 3D images of a scene with phase de-convolution
US8723924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2008 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Oct 19, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2213/003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of recording 3D images of a scene based on the time-of-flight principle is described. The method includes illuminating a scene by emitting light carrying an intensity modulation, imaging the scene onto a pixel array using an optical system, detecting, in each pixel, intensity-modulated light reflected from the scene onto the pixel and determining, for each pixel, a distance value based on the phase of light detected in the pixel. The determination of the distance values includes a phase-sensitive de-convolution of the scene imaged onto the pixel array such that phase errors induced by light spreading in the optical system are compensated for.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.