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US 11,144,762 B2Granted
Image processing apparatus, image processing method, and medium
AssigneeCanon Kabushiki Kaisha
InventorTomoyori Iwao
Life of this patent
Estimating the term…
Abstract
There is provided with an image processing apparatus. A target image including an object, for a predetermined imaging range, is obtained. A background image, which is obtained from a selected image selected from a captured image for the predetermined imaging range based on brightness of the target image, is obtained. A region of the object in the target image based on the background image is obtained.
Claims15
An image processing apparatus, comprising:
- one or more memories storing instructions;
- and
- one or more processors that execute the instructions to:
- obtain a movie including a plurality of frame images for a predetermined imaging range, the plurality of frame images including a target image including an object, wherein brightness of the plurality of frame images included in the movie varies at a cycle;
- specify brightness of the obtained target image;
- specify the cycle at which the brightness of the plurality of frame images included in the movie varies;
- select an image from the obtained plurality of frame images based on the specified cycle and a similarity between a feature reflecting brightness of the target image and a feature reflecting brightness of an image that is included in the plurality of frame images and is different from the target image;
- obtain a background image using the selected image, wherein the similarity of the feature reflecting brightness of the selected image to the feature reflecting brightness of the target image is not smaller than a threshold value;
- and
- determine a region of the object in the target image based on the background image.
7 more elements
An image processing method, comprising:
- obtaining a movie including a plurality of frame images for a predetermined imaging range, the plurality of frame images including a target image including an object, wherein brightness of the plurality of frame images included in the movie varies at a cycle;
- specifying brightness of the obtained target image;
- specifying the cycle at which the brightness of the plurality of frame images included in the movie varies;
- selecting an image from the obtained plurality of frame images based on the specified cycle and a similarity between a feature reflecting brightness of the target image and a feature reflecting brightness of an image that is included in the plurality of frame images and is different from the target image;
- obtaining a background image using the selected image, wherein the similarity of the feature reflecting brightness of the selected image to the feature reflecting brightness of the target image is not smaller than a threshold value;
- and
- determining a region of the object in the target image based on the background image.
4 more elements
A non-transitory computer-readable medium storing a program including instructions which, when the program is executed by a computer, cause the computer to perform:
- obtaining a movie including a plurality of frame images for a predetermined imaging range, the plurality of frame images including a target image including an object, wherein brightness of the plurality of frame images included in the movie varies at a cycle;
- specifying brightness of the obtained target image;
- specifying the cycle at which the brightness of the plurality of frame images included in the movie varies;
- selecting an image from the obtained plurality of frame images based on the specified cycle and a similarity between a feature reflecting brightness of the target image and a feature reflecting brightness of an image that is included in the plurality of frame images and is different from the target image;
- obtaining a background image using the selected image, wherein the similarity of the feature reflecting brightness of the selected image to the feature reflecting brightness of the target image is not smaller than a threshold value;
- and
- determining a region of the object in the target image based on the background image.
4 more elements
Dependencies are inferred from the claim text.