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    • 15. 发明申请
    • MOTION CAPTURE USING CROSS-SECTIONS OF AN OBJECT
    • 使用对象的交叉部分的运动捕获
    • US20130182079A1
    • 2013-07-18
    • US13414485
    • 2012-03-07
    • David Holz
    • David Holz
    • H04N13/02G06K9/00
    • G06T7/593G06T2200/08G06T2207/10021
    • An object's position and/or motion in three-dimensional space can be captured. For example, a silhouette of an object as seen from a vantage point can be used to define tangent lines to the object in various planes (“slices”). From the tangent lines, the cross section of the object is approximated using a simple closed curve (e.g., an ellipse). Alternatively, locations of points on an object's surface in a particular slice can also be determined directly, and the object's cross-section in the slice can be approximated by fitting a simple closed curve to the points. Positions and cross sections determined for different slices can be correlated to construct a 3D model of the object, including its position and shape. A succession of images can be analyzed to capture motion of the object.
    • 可以捕获物体在三维空间中的位置和/或运动。 例如,可以使用从有利位置观察的对象的轮廓来在各个平面(“切片”)中定义对象的切线。 从切线,使用简单的闭合曲线(例如,椭圆)近似对象的横截面。 或者,也可以直接确定特定切片中的物体表面上的点的位置,并且可以通过将简单的闭合曲线拟合到点来近似切片中的对象的横截面。 确定不同切片的位置和横截面可以相关,以构建对象的3D模型,包括其位置和形状。 可以分析连续的图像以捕获对象的运动。