--Starting notes file: general idea for this is 3 steps:
  1) proposals (machine-detected bounding boxes for objects within images)
  2) similarity measure (a measure of the match between boxed objects in
     successive frames)
  3) graphical model solution (formulate boxes with similarity measures as graph
     and then find max score path through graph by some method).
--Beginning with tang2014co paper and associated co-localize-v1 code.  Also have
  the other 10 papers on co-detection that Haonan posted to Mendeley.
--Need to look through robot video to find examples of frames with objects in
  the field of view.  Right now just need series of frames of same object, not
  necessarily from the same video.