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Title:
METHOD AND DEVICE FOR DETECTING SPECIFIC POINT
Document Type and Number:
Japanese Patent JP3437555
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To securely detect a specific point from a photographed image even when an appearance of the specific point varies due to an environmental change at shooting.
SOLUTION: A template image preparing module 102 produces a template image corresponding to a landmark existing in an actual space from a fixed viewpoint image obtained from a fixed camera 101 at predetermined timing, and provides the template image to a landmark detection module 113 to update a template image for use in template matching. The landmark detection module 113 performs the template matching using the template image updated in the template image preparing module 102 against a photographed image from an observer's viewpoint camera 111 which is mounted on an HMD 110 and moves together with the observer, and detects the position of the landmark in the photographed image.


Inventors:
Kiyohide Satoh
Application Number:
JP2001062222A
Publication Date:
August 18, 2003
Filing Date:
March 06, 2001
Export Citation:
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Assignee:
Canon Inc
International Classes:
G06T7/00; G06K9/46; G06T7/20; G06T7/60; (IPC1-7): G06T7/00; G06T7/20; G06T7/60
Domestic Patent References:
JP11136706A
JP2000275013A
Other References:
AR2ホッケー:協調型複合現実感システムの実現,日本バーチャルリアリティ学会論文誌,日本,1998年,Vol.3 No.2,pp.55−60
多視点画像の補間・再構成による視点追従型立体画像表示法,電子情報通信学会論文誌,日本,1996年 5月,Vol.J79−D−II No.5,pp.803−811
屋外装着型複合現実感実感システムの検討と試作,日本バーチャルリアリティ学会第5回大会論文集,日本,2000年 9月,pp.407−410
座標系対連動法による仮想環境内ナビゲーションのための鳥瞰カメラ視点の直感的制御,電子情報通信学会論文誌,日本,2000年 9月,Vol.J83−D−II No.9,pp.1905−1915
複合現実感,映像情報メディア学会誌,日本,1998年,Vol.52,No.3,pp.266−272
距離変換処理を用いた多視点画像による手姿勢推定法,映像情報メディア学会誌,日本,1997年,Vol.51No.12,pp.2116−2125
Attorney, Agent or Firm:
Yasunori Otsuka