我想知道什么是臀部中心的方向 [英] i wonder what is orientation of hip center

问题描述

i 我想知道3件事。请回答我的问题。

1。即使我站在相机（我的背部看起来相机），臀部中心联合z轴面向相机？ <我读到"髋关节中心关节z轴面向相机"？

2。我想知道计算的等式= hierarchicalRotation矩阵（4by4）。我可以得到矩阵中每个元素的等式和含义吗？ 

3。当我伸出手臂并扭动手腕时，可以kinect计算手腕的hierarchyRotation矩阵吗？

我在购买前研究kinect。如果你回答我的问题，我会很高兴购买精美的小工具

谢谢你阅读。

解决方案

提供联合方向作为四元数或矩阵。 对于v1方向，这些是简单的旋转，并且不会在Y轴周围扭曲（y总是面向父母的骨骼方向）。 看看Avateering
示例，了解如何应用此代码。

http://msdn.microsoft.com/en-us/library/hh973073.aspx

i am wondering 3 things. please answer my questions.

1. even though i stand against camera(my back looks camera), does hip center joint the z-axis face the camera? < i read " Hip Center joint the z-axis faces the camera"?

2. i want to know equation of calculating  hierarchicalRotation matrix(4by4). can i have the equation and meaning of each element of the matrix? 

3. when i extend my arm and twist only wrist, can kinect calculate hierarchicalRotation matrix of wrist?

i research kinect before buying. if you answer my question, i am going to buy wonderful gadget with a glad heart

thank you for reading.

解决方案

Joint orientations are provided as a quaternion or matrix. For v1 orientations these are simple rotations and do not provide a twist around the Y axis(y always faces the direction of the bone from the parent). Have a look at the Avateering sample for code on how this can be applied.

http://msdn.microsoft.com/en-us/library/hh973073.aspx

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