Title:
DEVICE TO DISPLAY AREA AROUND BODY OF WORKING MACHINE
Document Type and Number:
WIPO Patent Application WO/2014/103683
Kind Code:
A1
Abstract:
Provided is a device to display an area around the body of a working machine capable of improving the accuracy of corrections for a camera mounting position error and mounting angle error for an image obtained by combining images taken around the vehicle body. A device to display an area around the body of a dump truck (1) comprises an image combining unit to combine images captured by cameras (11a to 11d), a calibration unit to calculate the correction value for a mounting position error and a mounting angle error for the cameras (11a to 11d) with respect to the images to be combined by the image combining unit, and a processing unit to apply the correction value calculated by the calibration unit to the images to be combined by the image combining unit, and displays an image processed by the processing unit on a monitor (15). The device is provided with four calibration sheets (21) that are used in the correction value calculations by the calibration unit and that are disposed in an imaging range (11A to 11D) of the cameras (11a to 11d), and each calibration sheet (21) has a calibration marker (21A) formed by a plurality of straight lines.
Inventors:
KOWATARI YOICHI (JP)
INANOBE YOSHIHIRO (JP)
ISHIMOTO HIDEFUMI (JP)
OOTA MORITAKA (JP)
INANOBE YOSHIHIRO (JP)
ISHIMOTO HIDEFUMI (JP)
OOTA MORITAKA (JP)
Application Number:
PCT/JP2013/082985
Publication Date:
July 03, 2014
Filing Date:
December 09, 2013
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY (JP)
International Classes:
E02F9/26; B60R1/00; H04N7/18; H04N17/00
Foreign References:
| JP2010244326A | 2010-10-28 | |||
| JP2012112108A | 2012-06-14 | |||
| JP2011085403A | 2011-04-28 | |||
| JP2003283964A | 2003-10-03 | |||
| JP2011228857A | 2011-11-10 |
Attorney, Agent or Firm:
The Patent Body Corporate TAKEWA INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation Takekazu international patent firm (JP)
Patent business corporation Takekazu international patent firm (JP)
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