Stereo image measuring device

Image analysis – Applications – 3-d or stereo imaging analysis

Reexamination Certificate

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Details

C382S216000, C382S278000, C356S012000, C396S324000

Reexamination Certificate

active

07010157

ABSTRACT:
The present invention discloses a stereo image measuring device capable of carrying out high-speed and highly reliable three-dimensional measurement for a stereo image, easily correcting any omitted measurement, measurement errors or the like, and achieving a much higher speed, efficiency and reliability for measurement as a whole. A survey instrument measures a number of control points on site. A camera is, for example a digital camera, a film camera or the like. A control point search unit executes correlation between a control point measured beforehand by the instrument survey and an image. A search area setting unit sets a search area to be used for image correlation processing based on the control points correlated by the control point search unit, and sets respective data blocks, i.e., a reference data block and a search data block. An arithmetic operation unit executes orientation calculation, and image correlation processing (stereo matching) for the search area set by the search area setting unit. A display unit is a stereo monitor, a personal computer monitor or the like providing stereoscopic vision. A measuring unit executes additional measurement when the result of correlation processing is not satisfactory.

REFERENCES:
patent: 5943442 (1999-08-01), Tanaka et al.
patent: 6041140 (2000-03-01), Binns et al.
patent: 6606406 (2003-08-01), Zhang et al.
patent: 0 880 010 (1998-11-01), None
patent: 0 964 223 (1999-12-01), None

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