PROCESS FOR SETTING RETRIEVAL WINDOW

Title:

PROCESS FOR SETTING RETRIEVAL WINDOW

Document Type and Number:

WIPO Patent Application WO/1993/015472

Kind Code:

A1

Abstract:

A process for setting a retrieval window used for finding an object surely and quickly by an image processing equipment. Using a reference point G as a center, which is located in a group of sampled detection points Pi, the coordinates of the points Pi are determined in succession anticlockwise. In this order, stored are the coordinates data Qi of the points Pi in a file (S1-S9), and the coordinates data stored in the file are read out in succession in sets of three (S10). If a line segment Qi+1-Qi+2 is not broken to the left of a line segment Qi-Qi+1, the coordinate data Qi+1 is deleted from the file. Hereafter, the processing is similarly repeated, and the coordinate data of the points which are not of the vertexes of a convex polygon are all deleted from the file (S10-S29). The convex polygon obtained by joining together in succession the points of the coordinate value data which are left in the file finally is set on the image processing equipment, as a retrieval window.

Inventors:

WATANABE ATSUSHI (JP)
TERAWAKI FUMIKAZU (JP)
JYUMONJI TAKASHI (JP)

Application Number:

PCT/JP1993/000067

Publication Date:

August 05, 1993

Filing Date:

January 20, 1993

Export Citation:

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Assignee:

FANUC LTD (JP)

International Classes:

B25J13/08; B25J19/04; G06F3/033; G06F3/048; G06F17/30; G06T7/00; (IPC1-7): G06F15/70

Foreign References:

JPH01173180A

1989-07-07

Other References: