1. A method comprising: determining a plurality of image matching distances for a captured object depicted in a video frame, each image matching distance being indicative of a quality of a match between the captured object and a respective object match result; including, in a candidate pool, an indication of the object match results having image matching distances in a candidate region; discarding the object match results having image matching distances in a non-candidate region; and analyzing the object match results with image matching distances in a potential candidate region to include, in the candidate pool, indications of select object match results with image matching distances in the potential candidate region.