A range image segmentation algorithm based on Gaussian mixture model of surface normal is proposed.
提出了一种基于表面法向的高斯混合模型的距离图像分割算法。
The effect of transverse shear deformation is considered and Angle of rotation of surface normal for each layer is different.
这类板的横向剪切变形效应必须予以考虑，因而层板不同层的表面法线的转角是不同的。
Also, a solution is offered to solve the problem of generating tool axis vector when the surface normal ts perpendicular to rotary plane.
同时解决了曲面法矢垂直于回转平面时刀轴矢量难以确定的关键问题。
The intersection of sweep volume with complicated surface normal is transformed into computation of intersection between triangular mesh and directed line segment.
将扫描体与复杂曲面法矢的求交问题，转化为三角网格与有向线段之间的求交计算。
Results 30 cases of skin graft healed well, a little graft skin necrosis in 2 cases, all patients the wound healed well, beautiful shape, smooth surface, normal color, skin texture and good function.
结果30例患者移植皮肤愈合良好；2例患者少许移植皮肤坏死，换药后愈合。术后3月随访，全部患者创面愈合良好，外形美观，表面平坦，颜色正常，皮肤质地良好，肢体功能良好。
Results 30 cases of skin graft healed well, a little graft skin necrosis in 2 cases, all patients the wound healed well, beautiful shape, smooth surface, normal color, skin texture and good function.
结果30例患者移植皮肤愈合良好；2例患者少许移植皮肤坏死，换药后愈合。术后3月随访，全部患者创面愈合良好，外形美观，表面平坦，颜色正常，皮肤质地良好，肢体功能良好。
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