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Title:
THREE-DIMENSIONAL OBJECT RECOGNITION METHOD AND PIN PICKING SYSTEM USING THE METHOD
Document Type and Number:
WIPO Patent Application WO/2000/057129
Kind Code:
A1
Abstract:
A 3-dimensional object recognition method which can be applied to a pin picking system, comprising a step (A) of obtaining 1st and 2nd images of an object, a step (B) of detecting 2-dimensional features of the object from the 1st and 2nd images, a step (C) of evaluating the reliability of the step (B) in comparison with the model data of the object, a step (D) of matching the 2-dimensional features of the 1st image against the 2-dimensional features of the 2nd image, a step (E) of evaluating the reliability in the step (D) by comparing the 2-dimensional features of the 1st image with the 2-dimensional features of the 2nd image, a step (F) of recognizing the 3-dimensional position and posture of the object in accordance with 3-dimensional information of the 2-dimensional features which are obtained by the matching, and a step (G) of evaluating the reliability of the recognized 3-dimensional position and posture.

Inventors:
GU HAISONG (JP)
NAKAHARA TOMOHARU (JP)
ARAKI HIDEKAZU (JP)
FUJII HIROYUKI (JP)
Application Number:
PCT/JP2000/001685
Publication Date:
September 28, 2000
Filing Date:
March 17, 2000
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC WORKS LTD (JP)
GU HAISONG (JP)
NAKAHARA TOMOHARU (JP)
ARAKI HIDEKAZU (JP)
FUJII HIROYUKI (JP)
International Classes:
B25J9/16; G06T7/00; (IPC1-7): G01B11/245; B25J13/08; B65G61/00; G06T7/00
Foreign References:
JPH1031742A1998-02-03
JPH08145628A1996-06-07
JPH09147121A1997-06-06
JPH05134731A1993-06-01
JPH09277184A1997-10-28
JPH0635517A1994-02-10
JPH07299782A1995-11-14
Attorney, Agent or Firm:
Nishikawa, Yoshikiyo (Umeda Kita-ku Osaka-shi, Osaka, JP)
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