KINEMATIC QUANTITY MEASUREMENT FROM AN IMAGE
First Claim
Patent Images
1. A device comprising:
- an image sensor configured to capture an image;
at least one processor and a memory storing instructions that, when executed;
cause the image sensor to capture a first portion of the image at a first moment and to capture a second portion of the image at a second moment,detect a time difference between the first moment and the second moment,detect a position difference of an object in the first portion of the image and in the second portion of the image; and
calculate from the time difference and the position difference a kinematic quantity of the object.
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Abstract
A camera has known parameters that affect image distortions. Different shutters or different image sensor scanning procedures lead to the image having parts that are recorded at different moments. An object in motion may be recorded in different positions, which is usually seen as a distortion effect in the image. Detecting the object in the partial images in different positions enables the calculation of the position difference between two moments. As the time difference is known from the camera parameters, several kinematic quantities relating to the object may be calculated. Examples of the kinematic quantities are speed, velocity, angular velocity, acceleration and angular acceleration.
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20 Claims
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1. A device comprising:
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an image sensor configured to capture an image; at least one processor and a memory storing instructions that, when executed; cause the image sensor to capture a first portion of the image at a first moment and to capture a second portion of the image at a second moment, detect a time difference between the first moment and the second moment, detect a position difference of an object in the first portion of the image and in the second portion of the image; and calculate from the time difference and the position difference a kinematic quantity of the object. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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a camera configured to capture an image; at least one processor and a memory storing instructions that, when executed; cause the camera to capture a first portion of the image at a first moment and to capture a second portion of the image at a second moment, cause the camera to send a time difference between the first moment and the second moment to the at least one processor, cause the at least one processor to detect a position difference of an object in the first portion of the image and in the second portion of the image; and cause the at least one processor to calculate from the time difference and the position difference a kinematic quantity of the object. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method, comprising:
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an image comprising at least one item of camera parameter data; the image comprising a first portion of the image captured at a first moment and a second portion of the image captured at a second moment, the camera parameter comprising a time difference between the first moment and the second moment, detecting a position difference of an object in the first portion of the image and in the second portion of the image; and calculating from the time difference and the position difference a kinematic quantity of the object. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification