OBJECT TRACKING APPARATUS, OBJECT TRACKING METHOD, AND PROGRAM
An object tracking apparatus ( 10 ) includes a target determination information acquisition unit ( 110 ), an image processing unit ( 120 ), and a control unit ( 130 ). The target determination information acquisition unit ( 110 ) acquires target determination information determining an object to be tracked. The image processing unit ( 120 ) detects the object to be tracked and tracks the detected object by performing image processing on a to-be-processed region being a partial region of an image acquired from an imaging apparatus ( 20 ). The control unit ( 130 ) controls an imaging range of the imaging apparatus ( 20 ) in such a way that the object to be tracked is included in the to-be-processed region.
1 . An object tracking apparatus comprising:
a target determination information acquisition unit that acquires target determination information determining an object to be tracked;
an image processing unit that detects the object to be tracked and tracks the detected object by performing image processing on a to-be-processed region being a partial region of an image acquired from an imaging apparatus; and
a control unit that controls an imaging range of the imaging apparatus in such a way that the object to be tracked is included in the to-be-processed region.
2 . The object tracking apparatus according to claim 1 , wherein
the target determination information acquisition unit acquires the target determination information in response to an input of a position of the object to be tracked on the image.
3 . The object tracking apparatus according to claim 2 , wherein
the target determination information acquisition unit acquires the target determination information in response to an input for selecting a position of the object to be tracked on the image displayed on a display.
4 . The object tracking apparatus according to claim 1 , wherein
the target determination information acquisition unit executes processing of acquiring information indicating a position of the object to be tracked on the image when detection of the object to be tracked fails in the image processing.
5 . The object tracking apparatus according to claim 1 , wherein
the to-be-processed region is a region including a central portion of the image.
6 . The object tracking apparatus according to claim 5 , wherein
the control unit controls the imaging range of the imaging apparatus in such a way that the object to be tracked is included in a predetermined region including a central portion
of the image and being a part of the to-be-processed region.
7 . The object tracking apparatus according to claim 1 , wherein
a size of the to-be-processed region is determined in advance.
8 . The object tracking apparatus according to claim 7 , wherein
a size of the to-be-processed region is determined based on a size of a resource allocatable to an image processing on the to-be-processed region.
9 . The object tracking apparatus according to claim 1 , further comprising
a recording unit that stores, as recorded data, an image acquired from the imaging apparatus during a period from when the object to be tracked is detected to when a predetermined end condition is satisfied.
10 . The object tracking apparatus according to claim 1 , wherein
the image processing unit displays, on a display, information indicating the to-be-processed region in such a way as to be superimposed over the image.
11 . The object tracking apparatus according to claim 1 , wherein
the control unit controls the imaging range of the imaging apparatus by operating at least any one of a mechanism controlling a zoom of the imaging apparatus, a mechanism controlling a direction of the imaging apparatus, and a mechanism controlling a position of the imaging apparatus.
12 . An object tracking method executed by a computer, the object tracking method comprising:
acquiring target determination information determining an object to be tracked;
detecting the object to be tracked and tracking the detected object by performing image processing on a to-be-processed region being a partial region of an image acquired from an imaging apparatus; and
controlling an imaging range of the imaging apparatus in such a way that the object to be tracked is included in the to-be-processed region.
13 . A non-transitory computer readable medium storing a program causing a computer to execute an object tracking method, the method comprising:
acquiring target determination information determining an object to be tracked;
detecting the object to be tracked and tracking the detected object by performing image processing on a to-be-processed region being a partial region of an image acquired from an imaging apparatus; and
controlling an imaging range of the imaging apparatus in such a way that the object to be tracked is included in the to-be-processed region.