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Dynamic Affine-Invariant Shape-Appearance Handshape Features and Classification in Sign Language Videos

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Figure

Figure 1: Output of the initial hands and head tracking in two videos of two different signers, fromdifferent databases
Figure 2: Skin color modeling. Training samples in the a∗-b∗ space and fitted pdf ps(a∗,b∗)
Figure 3: Results of skin mask extraction and morphological segmentation. (a) Input. (b) Initialskin mask estimation S0
Figure 4: Construction of Shape-Appearance images. (a) Cropped hand images I(x). (b) Corre-sponding Shape-Appearance images f(x)
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