Monitoring Method and Device
First Claim
Patent Images
1. A method for monitoring comprising:
- capturing video frames over time;
processing data from said captured video frames into derived data representing a rate of change of said captured data;
creating new frames from said derived data; and
storing said new frames.
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Abstract
A method for monitoring including capturing video frames over time, processing data from the captured video frames into derived data representing a rate of change of the captured data, creating new frames from the derived data, and storing and/or displaying the new frames.
31 Citations
12 Claims
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1. A method for monitoring comprising:
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capturing video frames over time; processing data from said captured video frames into derived data representing a rate of change of said captured data; creating new frames from said derived data; and storing said new frames. - View Dependent Claims (2, 3, 4, 5)
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6. A method for monitoring comprising:
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acquiring a sequence of video frames, each pixel in each said frame having a luminance value; calculating from at least three video frames in said sequence at least a second derivative of said luminance values for each pixel over time; assigning the calculated derived value to each said pixel; and creating a bitmap from said calculated derived values, corresponding to movement of objects in said frames. - View Dependent Claims (7)
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8. A monitoring device comprising:
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an optical sensor for acquiring a sequence of video frames over time; a processor for processing data from said acquired video frames into derived data representing a rate of change of said acquired data and for creating new frames from said derived data. - View Dependent Claims (9, 10, 11, 12)
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Specification