Efficient Sampling of Light Ray Data by Sequential Camera Control
نویسندگان
چکیده
3次元空間の視覚情報を, 個別の入出力方式(多眼, ホ ログラフィなど)に依存しない中立的な形 で記述する ためには, 光線情報による記述が有効である . 3次元 空間中の光線は, 位置 (X,Y, Z)における伝搬方向 (θ, φ) をパラメータとして5次元の情報空間 f(X,Y, Z, θ, φ)の 中に記述される . この光線情報による空間記述に よって, 3次元画像の処理や符号化を「光線群の記述, 処 理, 符号化」として統一的に論ずることが可能となる. 最 近では, CGの分野においても, 同様の考え方が注目を集 めている . しかし3次元空間における光線の情報量は膨大であり, 適切な光線情報をいかに効率的に取得するかが問題とな る. 本研究速報では, 情報空間 f(X,Y, Z, θ, φ)に対して サンプリングと補間の概念を導入し, 光線情報を効率的 に取得する方式について検討する. 具体的には, すでに
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تاریخ انتشار 2001