An increasing number of applications depend on accurate and fast 3d scene analysis, such as geometry reconstruction, collision prevention, mixed reality, and gesture recognition.

越来越多的应用如几何重建、碰撞检测、混合现实、手势识别等，都依赖于对三维场景准确且快速的分析。

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The patent pre-defines a number of gestures, such as ones for facial recognition, a selection gesture and a pointing gesture (to identify a specific section of an onscreen image).

CNN: Apple patent uses 3-D gestures to control an iPad