pdp has no analysis objects as such, but yves' pidip extention has a couple: pdp_ctrack colour tracker, outputs the coordinates of a colour(+luminosity) in a video stream.. pdp_mgrid outputs cell coordinates of a grid where motion is detected..
just a hint:
there is a "workaround" to analyze pictures by using pdp_scanxy~ this object works like tabplay~, but it scans the luminocity channel of a video frame, instead of an array. it accepts coordinates as signal input. (0,0) is top left and (1,1) is bottom right. you could use a phasor~ object to generate coordinates.
if you use the audio output of pdp_scanxy~ in combination with env~ and some lop~ and hip~ objects, you can construct some very basic motion (hip) and intensity (lop) detection objects.
tom