Image processing apparatus, image processing method, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorKoichi Magai
Life of this patent
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Abstract
An image processing apparatus includes an image acquisition unit configured to extract an image from a video image, a history management unit configured to generate movement history of an object, a setting unit configured to set a search range in the image based on the movement history, and a tracking unit configured to detect a target object in the search range and associate a currently detected target object with a previously detected target object, to perform tracking on the target object.
Claims17
An image processing apparatus comprising:
- a processor;
- and
- a memory storing executable instructions which, when executed by the processor, cause the image processing apparatus to perform operations including:
- generating a movement history for each area among a plurality of areas into which an image is divided;
- setting a search range in the image based on the movement history;
- detecting a target object in the search range;
- and
- associating a currently detected target object with a previously detected target object, to perform tracking on the target object,
- wherein an error rate for an area of the plurality of areas is calculated based on a number of times when the target object is not detected in the area, and the movement history of an area where an error rate is greater than or equal to a predetermined threshold is re-generated.
An image processing method comprising:
- generating a movement history for each area among a plurality of areas into which an image is divided;
- setting a search range in the image based on the movement history;
- and
- detecting a target object in the search range;
- and
- associating a currently detected target object with a previously detected target object, to perform tracking on the target object,
- wherein an error rate for an area of the plurality of areas is calculated based on a number of times when the target object is not detected in the area, and the movement history of an area where an error rate is greater than or equal to a predetermined threshold is re-generated.
A non-transitory computer-readable storage medium that stores a program for causing an image processing apparatus to execute a image processing method, the method comprising:
- generating a movement history for each area among a plurality of areas into which an image is divided;
- setting a search range in the image based on the movement history;
- and
- detecting a target object in the search range;
- and
- associating a currently detected target object with a previously detected target object, to perform tracking on the target object,
- wherein an error rate for an area of the plurality of areas is calculated based on a number of times when the target object is not detected in the area, and the movement history of an area where an error rate is greater than or equal to a predetermined threshold is re-generated.
Dependencies are inferred from the claim text.