Fig. 4From: Inner lips feature extraction based on CLNF with hybrid dynamic template for Cued SpeechExamples of 20 CLNF landmarks placed in the full lips region. Eight points describe the inner lips contour. a Good inner lips contour of CLNF with hand occlusion. The green curve is the inner lips contour using interpolation. b Mistaken CLNF landmarks in the case of the B parameter). c Mistaken CLNF two end landmarks for round open inner lips (mistaken A parameter)Back to article page