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    • 3. 发明申请
    • MEASURING DEVICE, METHOD, AND COMPUTER PROGRAM PRODUCT
    • 测量设备,方法和计算机程序产品
    • US20140132759A1
    • 2014-05-15
    • US14070872
    • 2013-11-04
    • KABUSHIKI KAISHA TOSHIBA
    • Yuta ITOHAkihito SekiKenichi ShimoyamaSatoshi ItoMasaki Yamazaki
    • G01C11/20G01C11/02
    • G01C25/00G01C15/00G06T7/80
    • According to an embodiment, a measuring device includes a measuring unit, a capturing unit, an estimation unit, a calculator, and a detector. The estimation unit estimates, for each irradiated point, an estimated projection position on the image, using a direction and a distance of the irradiated point and calibration information based on calibration of a measuring unit and a capturing unit. The calculator calculates, for each irradiated point, an amount of change in reflection intensity and obtains a reflection intensity change point. The calculator calculates, for each estimated projection position, an amount of change in brightness and obtains a brightness change point. The detector detects a calibration shift between the measuring unit and the capturing unit by comparing the reflection intensity change point and the brightness change point.
    • 根据实施例,测量装置包括测量单元,捕获单元,估计单元,计算器和检测器。 估计单元对于每个照射点,基于测量单元和捕获单元的校准,使用照射点的方向和距离以及校准信息来估计图像上的估计投影位置。 对于每个照射点,计算器计算反射强度的变化量并获得反射强度变化点。 对于每个估计的投影位置,计算器计算亮度变化量并获得亮度变化点。 检测器通过比较反射强度变化点和亮度变化点来检测测量单元和捕获单元之间的校准位移。