Title:
OBJECT DETECTION DEVICE, OBJECT DETECTION METHOD AND OBJECT DETECTION PROGRAM
Document Type and Number:
Japanese Patent JP2019036030
Kind Code:
A
Abstract:
To improve detection accuracy of a cylindrical body or a spherical body form an image.SOLUTION: An object detection device 1 detects a cylindrical or spherical object from an image, and includes a projection transformation unit 11 which performs projection transformation of an original image which is obtained by imaging an object from an inclined angle with respect to a plane in a space into a front image obtained by imaging the object from a direction perpendicular to the plane, a foreground region extraction unit 12 which extracts a foreground region located in front of the plane from the front image, a designated color extraction unit 13 which extracts a designated color region matching the designated color from the foreground region, a profile detection unit 14 which approximates a profile surrounding the designated color region with an ellipse, and a shape verification unit 15 which determines whether the ellipse is a circle or not, and outputs the ellipse as a cylindrical object of a spherical object if the ellipse is a circle.SELECTED DRAWING: Figure 2
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Inventors:
SHIMAMURA JUN
TOKUNAGA TETSUO
TONOMURA YOSHIHIDE
TOKUNAGA TETSUO
TONOMURA YOSHIHIDE
Application Number:
JP2017155605A
Publication Date:
March 07, 2019
Filing Date:
August 10, 2017
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
G06T7/60; G06T7/70; G06T7/90
Attorney, Agent or Firm:
Hidekazu Miyoshi
Rie Kudo
Rie Kudo