Title:
DEVICE AND METHOD FOR DETECTING POSITION OF MOVING OBJECT
Document Type and Number:
Japanese Patent JP2003256842
Kind Code:
A
Abstract:
To configure an inexpensive system by reducing the arithmetic quantity of the position detection of a moving object projected on a highly precise image obtained by photographing the scene of a whole lecture by a remote lecture system.
A difference between an image and the temporally past image obtained by photographing the same range is calculated, and the changed position is defined as the movement destination of a moving object. In this case, only the pixel data of linearly arranged comparison points extracted from the image are compared to calculate the different so that the arithmetic quantity required for detecting the position of the moving object can be reduced.
Inventors:
YAGO SHIGEO
TOKURA NOBUYUKI
TAKANO TOMOHIDE
TOKURA NOBUYUKI
TAKANO TOMOHIDE
Application Number:
JP2002050140A
Publication Date:
September 12, 2003
Filing Date:
February 26, 2002
Export Citation:
Assignee:
OPTOWAVE LAB INC
International Classes:
G09B5/06; G06T7/20; H04N7/18; (IPC1-7): G06T7/20; G09B5/06; H04N7/18
Attorney, Agent or Firm:
Naotaka Ide (1 person outside)
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