Control apparatus, method of controlling image sensing device, and non-transitory computer-readable storage medium that controls an image sensing device for tracking and sensing a tracking target
AssigneeCanon Kabushiki Kaisha
InventorEiichiro Kitagawa
Life of this patent
Estimating the term…
Abstract
A control apparatus includes at least one processor operatively coupled to a memory, serving as a sensing unit configured to sense a tracking target that appears in a sensed video, a recording unit configured to record a size of the tracking target, and a search unit configured to obtain a predicted size of the tracking target in the sensed video, based on the size recorded by the recording unit, for a case of zooming out at a predetermined scaling factor, and, if the predicted size is larger than a predetermined size, to zoom out by the predetermined scaling factor, and then to search for the tracking target in the sensed video after the zoom out.
Claims18
A control apparatus that controls an image sensing device for tracking and sensing a tracking target, the apparatus comprising:
- at least one processor operatively coupled to a memory, serving as:
- (a) a detection unit configured to detect a tracking target that appears in a sensed video sensed by the image sensing device;
- (b) a recording unit configured to record a size of the tracking target that appears in the sensed video;
- (c) a determination unit configured, when a state in which the tracking target is detected in the sensed video becomes a state in which the tracking target is not detected in the sensed video, to determine a predicted size of the tracking target in the sensed video, based on the size recorded by the recording unit, for a case of zooming out at a predetermined scaling factor;
- and
- (d) a search unit configured to zoom out by the predetermined scaling factor, if the predicted size is larger than a predetermined size, and then to search for the tracking target in the sensed video after the zoom out.
A method of controlling an image sensing device for tracking and sensing a tracking target, by a processor executing a program stored in a memory, the method comprising:
- detecting a tracking target that appears in a sensed video sensed by the image sensing device;
- recording a size of the tracking target that appears in the sensed video;
- determining a predicted size of the tracking target in the sensed video, based on the recorded size, for a case of zooming out at a predetermined scaling factor, when a state in which the tracking target is detected in the sensed video becomes a state in which the tracking target is not detected in the sensed video;
- and
- zooming out by the predetermined scaling factor, if the predicted size is larger than a predetermined size, and then searching for the tracking target in the sensed video after the zoom out.
A non-transitory computer-readable storage medium that stores a program for causing a computer of a control apparatus that controls an image sensing device for tracking and sensing a tracking target to function as:
- (a) a detection unit configured to detect a tracking target that appears in a sensed video sensed by the image sensing device;
- (b) a recording unit configured to record a size of the tracking target that appears in the sensed video;
- and
- (c) a determining unit configured, when a state in which the tracking target is detected in the sensed video becomes, a state in which the tracking target is not detected in the sensed video, to determine a predicted size of the tracking target in the sensed video, based on the size recorded by the recording unit, for a case of zooming out at a predetermined scaling factor;
- and
- (d) search unit configured to zoom out by the predetermined scaling factor, if the predicted size is larger than a predetermined size, and then to search for the tracking target in the sensed video after the zoom out.
Dependencies are inferred from the claim text.