Image analysis using a pre-calibrated pattern of radiation
First Claim
Patent Images
1. An image content analysis security system comprising:
- one or more non-visible electromagnetic radiation emitters attached in a pattern to a wall or floor;
a camera configured to perceive the pattern of non-visible electromagnetic radiation, capture images including an object and at least a portion of the pattern, and output captured images as image data; and
an image analysis device configured to receive calibration information, receive the image data, and determine attributes of the object based on the image data and calibration information.
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Abstract
A system and method of image content analysis using a pattern generator that emits a regular and pre-calibrated pattern of non-visible electromagnetic radiation from a surface in range of a camera adapted to perceive the pattern. The camera captures images of the perceived pattern and other objects within the camera'"'"'s range, and outputs image data. The image data is analyzed to determine attributes of the objects and area within the camera'"'"'s range. The pattern provides a known background, which enables an improved and simplified image analysis.
51 Citations
20 Claims
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1. An image content analysis security system comprising:
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one or more non-visible electromagnetic radiation emitters attached in a pattern to a wall or floor; a camera configured to perceive the pattern of non-visible electromagnetic radiation, capture images including an object and at least a portion of the pattern, and output captured images as image data; and an image analysis device configured to receive calibration information, receive the image data, and determine attributes of the object based on the image data and calibration information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of analyzing image content for a security system comprising the steps of:
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attaching one or more non-visible electromagnetic radiation emitters to a wall or a floor in a pattern; providing calibration information to an image analysis device; emitting a pattern of non-visible electromagnetic radiation from the one or more non-visible electromagnetic radiation emitters; positioning a camera at a location so that the camera perceives the pattern of non-visible electromagnetic radiation; capturing images with the camera of an area containing an object and at least a portion of the pattern; outputting the captured images as image data to the image analysis device; determining attributes of the object based on the image data and the calibration information; and outputting at least one determined attribute. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An image content analysis security system comprising:
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a pattern generator means to produce a pattern of non-visible electromagnetic radiation, the pattern generator means attached to a wall or floor; a camera means to perceive the pattern of non-visible electromagnetic radiation, capture images including an object and at least a portion of the pattern, and output captured images as image data; and an image analysis means to receive calibration information, receive the image data, and determine attributes of the object based on the image data and calibration information. - View Dependent Claims (18, 19, 20)
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Specification