Title:
映像位置関係補正装置、該映像位置関係補正装置を備えた操舵支援装置、及び映像位置関係補正方法
Document Type and Number:
Japanese Patent JP4196841
Kind Code:
B2
Abstract:
A video image positional relationship correction apparatus is disclosed. Coordinate conversion parameters including internal parameters of a camera and attachment parameters are used as unknown numbers. Relational expressions are produced such that the number of the relational expressions is larger than the number of the coordinate conversion parameters to be calculated. Values of the coordinate conversion parameters are calculated based on deviations between monitor coordinates of video image reference points Q1 to Q6 actually captured by the camera and displayed, and the corresponding monitor coordinates of virtual target points R1 to R6. The monitor coordinates of the virtual target points are derived from the actual coordinates of the reference points based on the values of the calculated coordinate conversion parameters. The coordinate conversion parameters are determined such that the square-sum of the deviations between the monitor coordinates of the virtual target points and the monitor coordinates of the actually captured video image reference points is the minimum. Based on the determined values of the coordinate conversion parameters, the relative positional relationship between the actual video image and the virtual video image is corrected.
Inventors:
Shima Saki Wonori
Application Number:
JP2004023673A
Publication Date:
December 17, 2008
Filing Date:
January 30, 2004
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
B60R21/00; H04N7/18; B60R1/00; G06T1/00; G06T3/00; G06T7/00
Domestic Patent References:
| JP2001187552A | ||||
| JP2004004043A | ||||
| JP2001285681A |
Attorney, Agent or Firm:
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order