Patent · US Active

Distance-varying illumination and imaging techniques for depth mapping

US8761495B2 · kind B2 · utility

50Cited by

6References

24Claims

0Family size

Assignee

Primesense Ltd · IL

Inventors

Barak Freedman · Or Akiva, IL
Alexander Shpunt · Nes Ziona, IL
Yoel Arieli · Jerusalem, IL

Key dates

Filing date	Jun 19, 2013
Grant date	Jun 24, 2014
Priority date	—
Expiry date	Jun 19, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30196
WIPO fieldComputer technology
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.