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    • 31. 发明授权
    • Motion detection device for a photographic apparatus
    • 用于摄影器材的运动检测装置
    • US5878286A
    • 1999-03-02
    • US926472
    • 1997-09-10
    • Hiroyuki TomitaHideki Yamaguchi
    • Hiroyuki TomitaHideki Yamaguchi
    • G01C19/00G01H17/00G02B27/64G03B5/00G03B17/00
    • G03B5/00G03B2205/0015G03B2217/005
    • A motion detection device for a motion compensation system, suitable for use in a camera, to precisely and quickly compute an omega zero as a reference value for motion compensation, and to perform highly accurate camera motion compensation by using an angular displacement signal which has been accurately calculated with an omega zero as a reference. A mean computation device computes an integration mean value which is a central value of the angular velocity signal based on a signal output from an angular velocity sensor. A setting device sets an omega zero initial estimate value to compute the omega zero reference value. An omega zero computation device computes the omega zero value based on the integration mean value and the omega zero initial estimate value. An integration device converts the omega zero to an angular displacement signal. The integration average value and the omega zero initial estimate value are assigned weights by a reducing function that decreases as time progresses after the beginning of the computation function. A greater weight is placed on the omega zero initial estimate value immediately after the beginning of the computation function, while a greater weight is placed on the integration mean value as time passes after the beginning of the computation function.
    • 一种用于运动补偿系统的运动检测装置,适用于摄像机,精确地并且快速地计算作为运动补偿的基准值的欧米茄零点,并且通过使用已经被使用的角位移信号来执行高精度的相机运动补偿 以欧米加零精确计算为参考。 平均计算装置基于从角速度传感器输出的信号计算作为角速度信号的中心值的积分平均值。 设置装置设置ω零初始估计值以计算ω零参考值。 ω零计算装置基于积分平均值和ω零初始估计值计算ω-0值。 积分装置将ω零转换成角位移信号。 积分平均值和欧米茄零初始估计值通过在计算功能开始后随时间推移而减小的减小函数分配权重。 在计算功能开始之后立即对欧米加零初始估计值进行更大的权重,而在计算功能开始之后经过时间越大,积分平均值的权重越大。