patent · US8761495
Distance-varying illumination and imaging techniques for depth mapping
24 June 2014
Indexed reference — no copy held
This patent is cited by material in the archive, so it is indexed here by number, title and inventor. The archive holds no copy of its text.
Abstract
A method for mapping includes projecting a pattern onto an object ( 28 ) via an astigmatic optical element ( 38 ) having different, respective focal lengths in different meridional planes ( 54, 56 ) of the element. An image of the pattern on the object is captured and processed so as to derive a three-dimensional (3D) map of the object responsively to the different focal lengths.
Provenance
- Collection
- Cited prior art
- Original PDF
- patentimages.storage.googleapis.com →
- Filed
- 2013-06-19
- Source
- Google Patents bibliographic record
- Granted
- 2014-06-24
- Inventors
- Barak Freedman; Alexander Shpunt; Yoel Arieli; PrimeSense Ltd