Non-contact detection of physiological characteristics of experimental animals
First Claim
1. A respiration rate detector for determining a rate of respiration of an experimental animal, the respiration rate detector comprising:
- one or more optical detectors to observe an experimental animal and generate a video signal relating to the experimental animal; and
a controller to;
process the video signal to determine an optical flow of the video signal and generate an optical-flow signal,process the optical-flow signal to determine a spatial region-of-interest of the optical-flow signal, the spatial region-of-interest comprising one or more spatial cells of the optical-flow signal, wherein processing the optical-flow signal to determine the spatial region-of-interest comprises evaluating the optical-flow signal in frequency space and selecting one or more spatial cells having a value in frequency space that exceeds a threshold value,analyze the optical-flow signal within the spatial region-of-interest to determine the respiration rate of the experimental animal based on a detected repetitive movement of the experimental animal, anddisplay the determined respiration rate to an operator,wherein the respiration rate is detected without requiring physical contact with the experimental animal.
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Abstract
A respiration rate detector is provided for determining a rate of respiration of an experimental animal. The respiration rate detector includes one or more optical detectors to observe an experimental animal and generate a video signal relating to the experimental animal. A controller is provided to process the video signal to determine an optical flow of the video signal and generate an optical-flow signal, and analyze the optical-flow signal to determine the respiration rate of the experimental animal based on a detected repetitive movement of the experimental animal. The respiration rate is thereby detected without requiring physical contact with the experimental animal.
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Citations
26 Claims
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1. A respiration rate detector for determining a rate of respiration of an experimental animal, the respiration rate detector comprising:
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one or more optical detectors to observe an experimental animal and generate a video signal relating to the experimental animal; and a controller to; process the video signal to determine an optical flow of the video signal and generate an optical-flow signal, process the optical-flow signal to determine a spatial region-of-interest of the optical-flow signal, the spatial region-of-interest comprising one or more spatial cells of the optical-flow signal, wherein processing the optical-flow signal to determine the spatial region-of-interest comprises evaluating the optical-flow signal in frequency space and selecting one or more spatial cells having a value in frequency space that exceeds a threshold value, analyze the optical-flow signal within the spatial region-of-interest to determine the respiration rate of the experimental animal based on a detected repetitive movement of the experimental animal, and display the determined respiration rate to an operator, wherein the respiration rate is detected without requiring physical contact with the experimental animal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of determining a rate of respiration of an experimental animal, the method comprising:
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observing an experimental animal with one or more optical detectors to generate a video signal; processing the video signal to determine an optical flow of the video signal and generate an optical-flow signal; processing the optical-flow signal to determine a spatial region-of-interest of the optical-flow signal, the spatial region-of-interest comprising one or more spatial cells of the optical-flow signal, wherein processing the optical-flow signal to determine the spatial region-of-interest comprises evaluating the optical-flow signal in frequency space and selecting one or more spatial cells having a value in frequency space that exceeds a threshold value; analyzing the optical-flow signal to determine the respiration rate of the experimental animal based on a detected repetitive movement of the experimental animal; and displaying the determined respiration rate to an operator, wherein the respiration rate is detected without requiring physical contact with the experimental animal. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification