深度貼圖

深度貼圖（參見英文：depth map）係三維電腦圖像上會用到嘅影像。深度貼圖會記錄住場景入面各物件表面離視出發點幾遠。換句話講，深度貼圖每一點嘅灰階值（幾黑或者幾白）反映嗰點同觀察者之間嘅遠近：一般嚟講係值越淺，代表越近；值越深，代表越遠。

應用

喺 Blender 呢類三維建模軟件入面，深度貼圖可以配合位移修改器^[1]等嘅功能一齊用。喺呢種做法中，設計者可以用網上工具將相或者其他圖片轉化為深度貼圖，然後入去建模軟件，用細分咗嘅平面作為基礎模型，然後落位移修改器，將深度貼圖設定為位移貼圖，簡單講即係攞住塊平面，用深度貼圖教部電腦「塊平面嘅每一點要移幾多」，從而造出想要嘅形狀。呢種技術可以用嚟建構地形、浮雕、硬幣等物件嘅立體模型。^[2]

睇埋

立體建模

引咗

↑ Displace Modifier
↑ Krutikova, O., Sisojevs, A., & Kovalovs, M. (2017). Creation of a depth map from stereo images of faces for 3D model reconstruction. Procedia Computer Science, 104, 452-459，佢個 abstract 講到："One of the existing methods of reconstructing 3D models of faces uses stereo cameras. The reconstruction process usually consists of several steps: calibration of cameras, acquiring the depth map (disparity map) and the creation of the 3D model."

呢篇深度貼圖係仲未搞掂嘅楔位文。歡迎幫維基百科擴寫佢。

[1] Displace Modifier

[2] Krutikova, O., Sisojevs, A., & Kovalovs, M. (2017). Creation of a depth map from stereo images of faces for 3D model reconstruction. Procedia Computer Science, 104, 452-459，佢個 abstract 講到："One of the existing methods of reconstructing 3D models of faces uses stereo cameras. The reconstruction process usually consists of several steps: calibration of cameras, acquiring the depth map (disparity map) and the creation of the 3D model."

[1]

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