# PersonTrack.msg — stable cross-camera person identity track (Issue #322)
#
# track_id     : monotonically-increasing track ID, stable across camera views
# camera_id    : source camera label ("front", "right", "rear", "left")
# bbox         : last-known bounding box in the source image (centre + size, pixels)
# confidence   : cosine-similarity of the matched appearance feature (0–1);
#                1.0 for tracks created from a first-time observation
# first_seen   : wall-clock time when this track was first created
# last_seen    : wall-clock time of the most recent appearance observation
# is_stale     : true when (now − last_seen) > stale_timeout_s
#
std_msgs/Header header
uint32  track_id
string  camera_id
vision_msgs/BoundingBox2D bbox
float32 confidence
builtin_interfaces/Time first_seen
builtin_interfaces/Time last_seen
bool    is_stale