METHODS AND SYSTEMS FOR LASER BASED REAL-TIME STRUCTURED LIGHT DEPTH EXTRACTION

Title:

METHODS AND SYSTEMS FOR LASER BASED REAL-TIME STRUCTURED LIGHT DEPTH EXTRACTION

Document Type and Number:

WIPO Patent Application WO2003105289

Kind Code:

A3

Abstract:

Laser-based methods and systems for real-time structured light depth extraction are disclosed. A laser light source (100) produces a collimated beam of laser light. A pattern generator (102) generates structured light patterns including a plurality of pixels. The beam of laser light emanating from the laser light source (100) interacts with the patterns to project the patterns onto the object of interest (118). The patterns are reflected from the object of interest (118) and detected using a high-speed, low-resolution detector (106). A broadband light source (111) illuminates the object with broadband/light, and a separate high-resolution, low-speed detector (108) detects broadband light reflected from the object (118). A real-time structured light depth extraction engine/controller (110) based on the transmitted and reflected patterns and the reflected broadband light.

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Inventors:

ACKERMAN JEREMY D (US)
KELLER KURTIS P (US)

Application Number:

PCT/US2003/017987

Publication Date:

April 29, 2004

Filing Date:

June 09, 2003

Export Citation:

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Assignee:

UNIV NORTH CAROLINA (US)
ACKERMAN JEREMY D (US)
KELLER KURTIS P (US)

International Classes:

A61B1/04; A61B5/107; G01B11/25; G02B23/24; (IPC1-7): G01B11/24

Foreign References:

US5784098A	1998-07-21
US5307153A	1994-04-26
US6341016B1	2002-01-22
US5193120A	1993-03-09
US6503195B1	2003-01-07

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