Ideas for detecting separate dancers in a tango couple

1. Face detection

2. Skin detection -- used to supplement #1 & also to detect ladies' bare legs

3.  Shoe/Foot detection - template matching? look for shoe-like blobs in segmented image. The ones near skin are ladies. The other ones are men.

4. Background subtraction is going to be useful even having depth ( I KNEW IT)

5. Thinning to get skeletal shapes? If have head & feet, could get CoM & possibly extrapolate which blobs are legs...

6. Optical flow to estimate where things are if they go out of frame.