ToF(Time of Flight)深度相机是获取三维点云数据的重要手段之一,但ToF深度相机受到自身硬件和外部环境的限制,其测量数据存在一定的误差。本文针对ToF深度相机的非系统误差进行研究,通过实验验证了被测目标的颜色、距离和相对运动等因...ToF(Time of Flight)深度相机是获取三维点云数据的重要手段之一,但ToF深度相机受到自身硬件和外部环境的限制,其测量数据存在一定的误差。本文针对ToF深度相机的非系统误差进行研究,通过实验验证了被测目标的颜色、距离和相对运动等因素均会对深度相机获取的数据产生影响,且影响均不相同。本文提出了一种新的测量误差模型对颜色和距离产生的误差进行校正,对于相对运动产生的误差,建立了三维运动模糊函数进行恢复,通过对所建立的校正模型进行数值分析,距离和颜色的残余误差小于4 mm,相对运动所带来的误差小于0.7 mm。本文所做工作改善了ToF深度相机的测量数据的质量,为开展三维点云重建等工作提供了更精准的数据支持。展开更多
Evaluation of traditional Chinese medicines after the market has achieved fruitful results after years of development.The real-world research concept has been first proposed by Chief Researcher Xie Yanming in 2010 and...Evaluation of traditional Chinese medicines after the market has achieved fruitful results after years of development.The real-world research concept has been first proposed by Chief Researcher Xie Yanming in 2010 and to 2020 with the approval of the National Medical Products Administration to use real-world evidence to support drug development and review in 2020.Real-world data application and transformation continue to cause heated discussions in the industry.Real-world research concepts have been added new motivation into the evaluation of Chinese medicines after they are marketed.The development of the Chinese patent medicine industry is facing unprecedented opportunities and challenges.展开更多
文摘ToF(Time of Flight)深度相机是获取三维点云数据的重要手段之一,但ToF深度相机受到自身硬件和外部环境的限制,其测量数据存在一定的误差。本文针对ToF深度相机的非系统误差进行研究,通过实验验证了被测目标的颜色、距离和相对运动等因素均会对深度相机获取的数据产生影响,且影响均不相同。本文提出了一种新的测量误差模型对颜色和距离产生的误差进行校正,对于相对运动产生的误差,建立了三维运动模糊函数进行恢复,通过对所建立的校正模型进行数值分析,距离和颜色的残余误差小于4 mm,相对运动所带来的误差小于0.7 mm。本文所做工作改善了ToF深度相机的测量数据的质量,为开展三维点云重建等工作提供了更精准的数据支持。
文摘Evaluation of traditional Chinese medicines after the market has achieved fruitful results after years of development.The real-world research concept has been first proposed by Chief Researcher Xie Yanming in 2010 and to 2020 with the approval of the National Medical Products Administration to use real-world evidence to support drug development and review in 2020.Real-world data application and transformation continue to cause heated discussions in the industry.Real-world research concepts have been added new motivation into the evaluation of Chinese medicines after they are marketed.The development of the Chinese patent medicine industry is facing unprecedented opportunities and challenges.