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    • 1. 发明申请
    • DETECTING MOTION FOR A MULTIFUNCTION SENSOR DEVICE
    • 检测多功能传感器设备的运动
    • US20110267456A1
    • 2011-11-03
    • US12772735
    • 2010-05-03
    • Stan Adermann
    • Stan Adermann
    • H04N7/18
    • H04N7/181
    • To detect movement of a depth camera in a motion capture system, readings from an accelerometer in the depth camera are processed to provide short and long term moving averages for each of the x, y and z axes. For each axis, a difference between the short and long term averages is obtained. A sum of the differences is obtained by summing the absolute value of each difference, across all three axes. This sum of differences is then compared to a threshold to determine if movement is detected. In another approach, the short and long term averages of the accelerometer readings are converted to pitch and roll values, and the pitch and roll values are separately compared to a threshold to determine if movement is detected. A tracking algorithm can be temporarily halted while movement is detected. Readings in the vertical direction can be attenuated by a scaling factor.
    • 为了检测运动捕捉系统中深度摄像机的运动,处理深度摄像机中加速度计的读数,为x,y和z轴中的每一个提供短期和长期移动平均值。 对于每个轴,获得短期和长期平均值之间的差异。 通过对所有三个轴之间的每个差的绝对值求和来获得差值的和。 然后将该差值之和与阈值进行比较以确定是否检测到移动。 在另一种方法中,将加速度计读数的短期和长期平均值转换为间距和滚动值,并且将间距和滚动值分别与阈值进行比较,以确定是否检测到运动。 当检测到移动时,可以暂时停止跟踪算法。 垂直方向的读数可以通过缩放因子衰减。
    • 4. 发明授权
    • Detecting motion for a multifunction sensor device
    • 检测多功能传感器装置的运动
    • US08284847B2
    • 2012-10-09
    • US12772735
    • 2010-05-03
    • Stan Adermann
    • Stan Adermann
    • H04N11/02H04N7/173
    • H04N7/181
    • To detect movement of a depth camera in a motion capture system, readings from an accelerometer in the depth camera are processed to provide short and long term moving averages for each of the x, y and z axes. For each axis, a difference between the short and long term averages is obtained. A sum of the differences is obtained by summing the absolute value of each difference, across all three axes. This sum of differences is then compared to a threshold to determine if movement is detected. In another approach, the short and long term averages of the accelerometer readings are converted to pitch and roll values, and the pitch and roll values are separately compared to a threshold to determine if movement is detected. A tracking algorithm can be temporarily halted while movement is detected. Readings in the vertical direction can be attenuated by a scaling factor.
    • 为了检测运动捕捉系统中深度摄像机的运动,处理深度摄像机中加速度计的读数,为x,y和z轴中的每一个提供短期和长期移动平均值。 对于每个轴,获得短期和长期平均值之间的差异。 通过对所有三个轴之间的每个差的绝对值求和来获得差值的和。 然后将该差值之和与阈值进行比较以确定是否检测到移动。 在另一种方法中,将加速度计读数的短期和长期平均值转换为间距和滚动值,并且将间距和滚动值分别与阈值进行比较,以确定是否检测到运动。 当检测到移动时,可以暂时停止跟踪算法。 垂直方向的读数可以通过缩放因子衰减。