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    • 4. 发明公开
    • Online calibration of stereo camera systems including fine vergence movements
    • 在线 - Kalibrierung von Stereokamerasystemen mit Feinvergenzbewegungen
    • EP2026589A1
    • 2009-02-18
    • EP07114176.6
    • 2007-08-10
    • Honda Research Institute Europe GmbH
    • Rodemann, TobiasJoublin, FrankDunn, Mark
    • H04N13/00B25J9/16G05B19/401
    • G05B19/401B25J9/163B25J9/1697G05B2219/39367G05B2219/40003G05B2219/40617H04N13/239H04N13/246H04N13/296
    • The invention relates to the control of a stereo camera system, the stereo camera system comprising a stereo camera (1) and actuator means (41, 42, 43) for controlling an orienting and a vergence action of the stereo camera (1),
      the control method comprising the following steps:
      - (S1) Evaluating pre-action output information of the stereo camera (1) in order to detect the position of a pattern in the input space of the stereo camera (1);
      - (S2) Deciding on a targeted post-action position of said pattern (2) in the input space of the stereo camera (1);
      - (S3) Defining a command for the actuator means (41, 42, 43) by mapping any deviation of the pre-action position and the targeted post-action position in the input space coordinates of the stereo camera (1) to actuator control coordinates using a predefined mapping function;
      - (S4) Orienting the stereo camera (1) by the actuator means (41, 42, 43) according to the defined command in order to carry out an orienting action; and
      - (S5) Detecting the real post-action position of the pattern (2) in the input space of said sensor means (1);
      - (S6) Controlling the actuator means to perform a vergence movement of the stereo camera in order to focus both cameras on the same target,
      - (S7) Calculating a correction signal on the basis of the pre-action position which has actually been moved to the targeted post-action position when carrying out the action, and
      - (S8) adapting the mapping function taking into account the correction signal and the added executed actuator commands for the orienting and the vergence movement.
    • 本发明涉及立体相机系统的控制,该立体相机系统包括立体相机(1)和用于控制立体照相机(1)的定向和聚光动作的致动器装置(41,42,43),其中, 控制方法包括以下步骤: - (S1)评估立体照相机(1)的预动作输出信息,以便检测立体照相机(1)的输入空间中的图案的位置; - (S2)在立体照相机(1)的输入空间中确定所述图案(2)的目标后动作位置; - (S3)通过将立体照相机(1)的输入空间坐标中的预动作位置和目标后动作位置的任何偏差映射到致动器控制来定义致动器装置(41,42,43)的命令 使用预定映射函数进行坐标; - (S4)根据所定义的命令,通过致动器装置(41,42,43)定向立体摄像机(1),以执行定向动作; 和 - (S5)检测所述传感器装置(1)的输入空间中的图案(2)的真实的后动作位置; - (S6)控制致动器装置执行立体摄像机的聚光运动,以便将两个摄像机对准在相同的目标上, - (S7)基于实际移动的动作前位置来计算校正信号 在执行动作时到达目标后动作位置,以及 - (S8)考虑校正信号和附加的执行致动器命令来适应映射功能以进行定向和聚合运动。