Range finder and method

Details Range finder and method Range finder and method

2007-06-26

2007-06-26

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

Shape or surface configuration

Triangulation

C356S601000, C356S003010, C356S004010, C250S559220, C250S559290, C250S559380

Reexamination Certificate

active

10721457

ABSTRACT:
A linearly polarized light projector system projects linearly polarized light onto a subject. While polarizing filters are used for removing light specular-reflected on the subject, a reflected image after removal of the specular-reflected light is captured by image input systems different in view point. Even in the case where the subject is glossy, the number of points for measuring the shape of the subject is increased and range images improved in measurement accuracy can be acquired collectively.

REFERENCES:
patent: 3788741 (1974-01-01), Buechler
patent: 4641972 (1987-02-01), Halioua et al.
patent: 2005/0089199 (2005-04-01), Marschner et al.
patent: A 2002-162208 (2002-06-01), None
patent: 2002213931 (2002-07-01), None
Chu-Song Chen et al., “Range data acquisition using color structured lighting and stereo vision,” Image and Vision Computing 15, pp. 445-456, 1997.

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