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    • 24. 发明授权
    • True space tracking of axisymmetric object flight using diameter measurement
    • 使用直径测量的轴对称飞行的真实空间跟踪
    • US08908922B2
    • 2014-12-09
    • US14157354
    • 2014-01-16
    • Pillar Vision, Inc.
    • Alan W. MartyJohn Carter
    • G06K9/00G06T7/20
    • G06T7/246G06T7/80G06T2207/10016G06T2207/30224G06T2207/30241H04N5/2252
    • Methods and apparatus for determining a trajectory of a axisymmetric object in 3-D physical space using a digital camera which records 2-D image data are described. In particular, based upon i) a characteristic length of the axisymmetric object, ii) a physical position of the camera determined from sensors associated with the camera (e.g., accelerometers) and iii) captured 2-D digital images from the camera including a time at which each image is generated relative to one another, a position, a velocity vector and an acceleration vector can be determined in three dimensional physical space for axisymmetric object objects as a function of time. In one embodiment, the method and apparatus can be applied to determine the trajectories of objects in games which utilize axisymmetric object objects, such as basketball, baseball, bowling, golf, soccer, rugby or football.
    • 描述了使用记录2-D图像数据的数字照相机确定3-D物理空间中的轴对称物体的轨迹的方法和装置。 特别地,基于i)轴对称对象的特征长度,ii)从与相机相关联的传感器(例如,加速度计)确定的相机的物理位置,以及iii)从相机捕获的2-D数字图像,包括时间 每个图像相对于彼此生成的位置,速度矢量和加速度矢量可以作为时间的函数在轴对称对象对象的三维物理空间中被确定。 在一个实施例中,可以应用该方法和装置来确定使用诸如篮球,棒球,保龄球,高尔夫,足球,橄榄球或足球之类的轴对称物体的游戏中的物体的轨迹。