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    • 6. 发明申请
    • Markerless motion capture system
    • 无标记运动捕捉系统
    • US20080031512A1
    • 2008-02-07
    • US11716130
    • 2007-03-09
    • Lars MundermannStefano CorazzaThomas Andriacchi
    • Lars MundermannStefano CorazzaThomas Andriacchi
    • G06K9/20
    • G06K9/00342
    • A markerless motion capture system is provided for measurements accurate enough for biomechanical, clinical, sport, entertainment, animation, game and movie, design, ergonomics, surveillance applications. The system has multiple cameras distributed around a viewing volume. The cameras allow for the creation of three-dimensional mesh representations of an object dynamically moving within the viewing volume. A model of the object that incorporates specific morphological and kinematic model information (including soft joint constraints) is then matched to the captured three-dimensional mesh representations. The matching routine aims to embed the model into each of the three-dimensional representations using (i) iterative closest point or simulated annealing algorithms and (ii) using soft joint constraints. This unique combination of routines offers a simple, time-efficient, accurate and thus more meaningful assessment of movements. The system further offers feasibility of accurately and precisely measuring three-dimensional kinematics of the dynamically moving object or human.
    • 提供无标记运动捕捉系统,用于足够精确的生物力学,临床,运动,娱乐,动画,游戏和电影,设计,人体工程学,监视应用。 该系统具有围绕观看体积分布的多个摄像机。 相机允许创建在观看体积内动态移动的对象的三维网格表示。 然后将包含特定形态和运动学模型信息(包括软关节约束)的对象的模型与捕获的三维网格表示匹配。 匹配例程旨在使用(i)迭代最近点或模拟退火算法和(ii)使用软关节约束将模型嵌入到每个三维表示中。 这种独特的例程组合为运动提供了一种简单,及时,准确,因而更有意义的评估。 该系统进一步提供准确和精确地测量动态移动物体或人类的三维运动学的可行性。