Compact 3D scanner with fixed pattern projector and dual band image sensor

Patent metadata

Field	Value
Publication number	US-9103666-B2
Application number	US-201414156711-A
Country	US
Kind code	B2
Filing date	Jan 16, 2014
Priority date	May 17, 2007
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

A structured light 3D scanner consisting of a specially designed fixed pattern projector and a camera with a specially designed image sensor is disclosed. A fixed pattern projector has a single fixed pattern mask of sine-like modulated transparency and three infrared LEDs behind the pattern mask; switching between the LEDs shifts the projected patterns. An image sensor has pixels sensitive in the visual band, for acquisition of conventional image and the pixels sensitive in the infrared band, for the depth acquisition.

First claim

What is claimed is:

1. A 3D scanner comprising:
a camera comprising an image sensor, the image sensor comprising pixels sensitive in the visible optical band and pixels sensitive in the infrared optical band;
a fixed pattern projector comprising a single fixed pattern mask, a plurality of visible light sources behind the single fixed pattern mask, and a plurality of infrared light sources behind the single fixed pattern mask;
wherein said camera is configured to project patter…

Assignees

• Technion Res & Dev Foundation

Inventors

• Blayvas Ilya

Classifications

• G01B11/2509 Primary

  Physics · mapped topic

• G06T7/0057

  Physics · mapped topic

• G01B11/25 Primary

  Physics · mapped topic

• G06T7/521

  Physics · mapped topic