| 摘要 |
PROBLEM TO BE SOLVED: To enable a tracking of an object of separation separating midway through an observation.SOLUTION: A target separation determination unit 7 is provided that is configured to compare likelihood &phgr;(Z|X-hat) of a tracking candidate X-hatselected by a detail search unit 5 with a separation target threshold Thto be determined based on a total length of trackings of a host machine and a separation target, and determine that the tracking of the separation target is established when the likelihood &phgr;(Z|X-hat) of the tracking candidate X-hatis more than the separation target threshold Th. When it is determined by the target separation determination unit 7 that the tracking of the separation target is established, a tracking establishment output unit 9 is configured to output the tracking candidate X-hatselected by the detail search unit 5 as a tracking of the separation target. |
