True, their method differs from Dual Quaternion Skinning, but the implicit surface is generated after performing Dual Quat skinning first.
The video explains their method pretty well: "Implicit Skinning: Real-Time Skin Deformation with Contact Modeling" - SIGGRAPH 2013
Description on YouTube has links for more information.
[youtube]RHySGIqEgyk[/youtube]
Improved Dual Quat Skinning (SIGGRAPH 2013)
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- Halfling
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