Display device surveillance detection
AssigneeHewlett-Packard Development Company, L.P.
InventorsChi Wai So, Yun David Tang, Guoxing Yang, Alexander Wayne Clark
Life of this patent
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Abstract
Examples of electronic devices are described herein. In some examples, an electronic device includes a camera. In some examples, the electronic device includes a display device. In some examples, the electronic device includes a processor to detect a scene change in a first set of images captured by the camera. The first set of images has a first resolution. The processor is also to detect surveillance of the display device in response to detecting the scene change. The surveillance detection is based on a second set of images captured by the camera. The second set of images has a second resolution that is higher than the first resolution.
Claims14
An electronic device, comprising:
- a camera;
- a display device;
- and
- a processor to:
- detect a scene change in a first set of images captured by the camera, the first set of images having a first resolution;
- extract a region of interest in an image of the first set of images based on the scene change;
- switch the camera to a high resolution mode and capture a second set of images, the second set of images having a second resolution that is higher than the first resolution;
- map a region in an image of the second set of images based on the region of interest in the image of the first set of images;
- crop a region of the image of the second set of images based on the mapped region;
- and
- process the cropped region of the image of the second set of images captured by the camera to detect surveillance of the display device.
An electronic device, comprising:
- a camera;
- a display device;
- and
- a processor to:
- detect a scene change in a first set of images captured by the camera, the first set of images having a first resolution;
- extract a region of interest in an image of the first set of images based on the scene change;
- switch the camera to a high resolution mode and capture a second set of images, the second set of images having a second resolution that is higher than the first resolution;
- map a region in an image of the second set of images based on the region of interest in the image of the first set of images;
- crop a region of the image of the second set of images based on the mapped region;
- and
- process the cropped region of the image of the second set of images using a machine-learning model to detect surveillance of the display device.
A non-transitory tangible computer-readable medium comprising instructions when executed cause a processor of an electronic device to:
- detect a scene change in a first set of images captured by a camera, the first set of images having a first resolution;
- determine a region in an image of the first set of images with a change greater than a threshold amount;
- map a region in an image of a second set of images captured by the camera having a second resolution higher than the first resolution based on the region in the image of the first set of images;
- crop a region of the image of the second set of images captured by the camera, the cropping being based on the region in the image of the first set of images;
- and
- process the cropped region of the image of the second set of images using a machine-learning model to detect surveillance of a display device.
Dependencies are inferred from the claim text.