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Title:
ENHANCED CONTRAST FOR OBJECT DETECTION AND CHARACTERIZATION BY OPTICAL IMAGING
Document Type and Number:
Japanese Patent JP2016186793
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide imaging systems that improve object recognition by enhancing contrast between an object and background surfaces visible in an image.SOLUTION: An image capture and analysis system 100 for identifying objects of interest in an image scene 112 comprises: at least one camera 102, 104 oriented toward a field of view; at least one light source 108, 110 disposed on a same side of the field of view as the camera and oriented to illuminate the field of view; and an image analyzer 106 coupled to the camera and the light source(s). The image analyzer may be configured to operate the camera(s) to capture a sequence of images including a first image captured at a time when the light source(s) are illuminating the field of view, identify pixels corresponding to the object 114 rather than to the background, and based on the identified pixels, construct a 3D model of the object, including a position, a shape and a cross section of the object, to geometrically determine whether it corresponds to the object of interest.SELECTED DRAWING: Figure 1

Inventors:
DAVID HOLZ
YANG HUA
Application Number:
JP2016104145A
Publication Date:
October 27, 2016
Filing Date:
May 25, 2016
Export Citation:
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Assignee:
LEAP MOTION INC
International Classes:
G06T7/20; G01B11/24; G06T7/00; G06T7/60; H04N5/232; H04N5/238
Domestic Patent References:
JP2004246252A2004-09-02
JPH02236407A1990-09-19
JP2011248376A2011-12-08
JP2000023038A2000-01-21
JP2006259829A2006-09-28
JP2008227569A2008-09-25
JPH09259278A1997-10-03
JP2007272596A2007-10-18
JPH08261721A1996-10-11
JP2002133400A2002-05-10
JP2003256814A2003-09-12
JP2011010258A2011-01-13
Foreign References:
US20090103780A12009-04-23
US8059153B12011-11-15
US8059894B12011-11-15
Attorney, Agent or Firm:
Yoshifumi Masaki