PointClouds:開放式點雲資料庫平臺是一個基於點雲2D/3D和點雲處理的開放式原始碼開發資料庫資料網站,對於開發人員可以下載點雲資料庫運行於多作業系統,支援window、Mac os。


點雲(point cloud)是指透過3D掃瞄儀所取得之資料型式。掃描資料以點的型式記錄,每一個點包含有三維座標,有些可能含有色彩資訊(R,G,B)或物體反射面強度。

點雲資料除了具有幾何位置以外,還有強度(Intensity)資訊,強度資訊的獲取是鐳射掃描器接受裝置採集到的回波強度,此強度資訊與目標的表面材質、粗糙度、入射角方向,以及儀器的發射能量,鐳射波長有關。 點雲也是逆向工程中通過儀器測量外表的點資料集合。在電腦動畫領域, 皮克斯的玩具總動員3使用了點雲技術

A point cloud is a set of data points in some coordinate system.In a three-dimensional coordinate system, these points are usually defined by X, Y, and Z coordinates, and often are intended to represent the external surface of an object.

Point clouds may be created by 3D scanners. These devices measure in an automatic way a large number of points on the surface of an object, and often output a point cloud as a data file. The point cloud represents the set of points that the device has measured.

As the result of a 3D scanning process point clouds are used for many purposes, including to create 3D CAD models for manufactured parts, metrology/quality inspection, and a multitude of visualization, animation, rendering and mass customization applications.



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