Method and device for range imaging
US9363484B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Aug 21, 2013 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Oct 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C3/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for range imaging allows determining respective distances to multiple objects, based on a single image. The image is captured through a component having a transmittance function of which the Fourier transform is inscribed on a circle within a plane of spatial frequencies. A Fourier transform of the captured image is calculated in order to obtain a total spectrum for the image content. The distance to each object is then calculated based on several homothetic superimpositions of a reference spectrum with the total spectrum, so that said reference spectrum coincides with a portion of the total spectrum each time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.