如何将关节位置映射到相同的骨架尺寸？ [英] How to map joint positions to the same skeleton size?

问题描述

亲爱的所有人：

   我想知道是否有一种简单的方法可以将关节位置（从kinect）映射到相同的骨架尺寸？众所周知，身体大小因用户而异。我想使用具有固定骨骼长度的骨架
来显示来自kinect的关节位置数据。这听起来像是在动画中重新定位。  有关于此的任何想法？  提前致谢!!

   最好！

    Leo

解决方案

我会说它是更多重新缩放。

1）首先需要定义要用作基本参考的骨骼或元素。例如肩膀距离或头部到脊柱的距离。

2）然后，您需要计算缩放因子以将现有骨架转换为重新缩放的骨架。

 float scalingFactor = shoulderDistance / targetShoulderDistance; 

3）最后你必须将此缩放应用于所有关节位置：

< pre class ="prettyprint"> foreach（在skeleton.Joints中联合关节）
{
joint.Position.X * = scalingFactor;
joint.Position.Y * = scalingFactor;
joint.Position.Z * = scalingFactor;
}

Dear all:

   I wonder if there is a simple way to map the joint positions (from kinect) to the same skeleton size? As we know, the body size varies between different users. I want to visualize the joint position data from kinect using a skeleton with fixed bone length. It sounds like retargeting in animation.  Any ideas about this?  Thanks in advance!!

   Best!

   Leo

解决方案

I would say it's more rescaling.

1) You first need to define which bones or elements you want to use as a base reference. For example shoulders distance or head to spine distance.

2) You then need to compute the scaling factor to convert the existing skeleton to rescaled skeleton.

float scalingFactor = shoulderDistance / targetShoulderDistance;

3) and finally you must apply this scaling to all joint positions:

foreach (Joint joint in skeleton.Joints)
{
    joint.Position.X *= scalingFactor;
    joint.Position.Y *= scalingFactor;
    joint.Position.Z *= scalingFactor;
}

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