公开(公告)号：US20070043293A1

公开(公告)日：2007-02-22

申请号：US11590569

申请日：2006-10-30

申请人： Paul Jones ,  Paul Freiburger ,  Craig Robinson ,  Stephen Czenszak ,  Christian Deforge

发明人： Paul Jones ,  Paul Freiburger ,  Craig Robinson ,  Stephen Czenszak ,  Christian Deforge

IPC分类号： A61B8/00

CPC分类号： A61B8/4254 ,  A61B8/00 ,  A61B8/483

摘要： Methods and systems for measuring transducer movement are provided. For example, free-hand scanning for three-dimensional imaging is provided. An optical sensor within the transducer measures motion along the skin surface similar to measuring movement of a personal computer mouse with an optical sensor. Alternatively or additionally, the transducer is tilted at an angle other than perpendicular to the skin surface generally towards or away from the direction in which the transducer is translated. The transducer is then translated while maintaining the angle. Motion to or from the transducer is measured, and a component of the motion measured while the transducer is maintained at an angle is parallel to the direction of translation. The component of motion is angle corrected and used to determine a distance of travel.

摘要翻译： 提供了测量传感器运动的方法和系统。 例如，提供用于三维成像的自由扫描。 换能器内的光学传感器测量皮肤表面的运动，类似于使用光学传感器测量个人计算机鼠标的移动。 或者或另外，换能器以与换能器平移方向大致相反或远离换能器方向的角度倾斜，而不是垂直于皮肤表面。 然后在保持角度的同时平移换能器。 测量与传感器的运动，并且在换能器保持一定角度时测量的运动的分量平行于平移方向。 运动的分量被角度校正，用于确定行驶距离。