1+4: inner brow raiser + brow lowerer
AU1+4 AU 1 + 4 – blendshape – blendshapes – blend shape – blend shapes – FACS – Facial Action Coding System
Facial Expressions in Art, Science, & Technology
1+4: inner brow raiser + brow lowerer
AU1+4 AU 1 + 4 – blendshape – blendshapes – blend shape – blend shapes – FACS – Facial Action Coding System