Object tracking apparatus, object tracking method, and program

Abstract

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.

What is claimed is: 
     
         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.