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    • 3. 发明申请
    • FULLY AUTOMATIC DYNAMIC ARTICULATED MODEL CALIBRATION
    • 全自动动态模型校准
    • WO2012177643A3
    • 2013-02-21
    • PCT/US2012043154
    • 2012-06-19
    • MICROSOFT CORP
    • LEE KYUNGSUK DAVIDBALAN ALEXANDRU
    • G06T7/00G06T7/20G06T7/60
    • G06T17/00G06T13/40
    • A depth sensor obtains images of articulated portions of a user's body such as the hand. A predefined model of the articulated body portions is provided. The model is matched to corresponding depth pixels which are obtained from the depth sensor, to provide an initial match. The initial match is then refined using distance constraints, collision constraints, angle constraints and a pixel comparison using a rasterized model. Distance constraints include constraints on distances between the articulated portions of the hand. Collision constraints can be enforced when the model meets specified conditions, such as when at least two adjacent finger segments of the model are determined to be in a specified relative position, e.g., parallel. The rasterized model includes depth pixels of the model which are compared to identify overlapping pixels. Dimension of the articulated portions of the model are individually adjusted.
    • 深度传感器获得诸如手的用户身体的关节部分的图像。 提供了铰接体部分的预定模型。 该模型与从深度传感器获得的相应深度像素匹配,以提供初始匹配。 然后使用距离约束,碰撞约束,角度约束和使用光栅化模型的像素比较来精简初始匹配。 距离约束包括对手的铰接部分之间距离的约束。 当模型满足指定的条件时,例如当模型的至少两个相邻手指段被确定为处于指定的相对位置(例如并行)时,可以强制执行冲突约束。 光栅化模型包括与识别重叠像素进行比较的模型的深度像素。 模型的铰接部分的尺寸被单独调整。