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2次元マトリックスコードを利用した 拡張現実感の構成手法 暦本純一 ソニーコンピュータサイエンス研究所 w i s s ‘ 9 6 Copyright (C) 1996  Jun Rekimoto Dec. 6, 1996, Ikeda-cho, Hokkaido w i s s 9   6
背景 ,[object Object],[object Object],[object Object],[object Object],KARMA  [Feiner et al.]
現実と仮想の位置整合 世界座標系 Origin-to-Object Origin-to-Camera オブジェクト 座標系 カメラ 座標系 VR よりはるかに高精度な位置計測が要求される
現実と仮想の位置整合 世界座標系 Origin-to-Object Origin-to-Camera Object-to-Camera オブジェクト 座標系 カメラ 座標系
マーカー方式 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
関連研究 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
本研究の手法 ,[object Object],[object Object],[object Object],[object Object],オブジェクト種別 外枠から 位置情報を 推定 2    種類 16
提案方式の概要 座標系推定 オブジェクト認識 画像合成 CG 画像 合成画像 マトリックス コード 実世界オブジェクト ビデオカメラ
結果
認識アルゴリズム 2値化 連結領域選別 コード枠当てはめ コード認識 座標系認識 オブジェクト ID カメラ位置・姿勢 入力画像
原画像 2値化 連結成分抽出 連結成分の サイズ、縦横比 による選別
[object Object],逆射影変換 1 0 1 1 1 1 1 1 1 0 1 1 1 0 1 1 0 0 0 0 0 0 0 0 0 エラー検出 オブジェクト ID
[object Object],X Y Z = R x y z T + 実世界座標 カメラ座標 n v1 .. v4  が正方形の 幾何条件を満たすように 放線ベクトル  n   を最適化 v 1 v 2 v 3 v 4 ( R を正規直行行列として求める )
結果
オーバーレイ情報の定義 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
試作システム ,[object Object],[object Object],[object Object],[object Object],[object Object]
議論 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
まとめ ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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