Device and method for detecting non-visible content in a non-contact manner
First Claim
1. A device for detecting non-visible content of an object in a non-contact manner, the device comprising:
- a light source configured to emit light toward a surface of an object over a period of time, wherein the light source includes a first laser configured to emit a first laser light toward a first surface of the object, and a second laser light source configured to emit a second laser light at a second surface of the object;
an optical sensing component configured to receive a pattern of light from the surface of the object, and to record the received pattern of light at plural points in time, wherein the received pattern of light includes a first interference pattern received from the first surface of the object based on the first laser light, and a second interference pattern received from the second surface of the object based on the second laser light; and
a processing component configured to determine temporal changes in the pattern of light during the plural points in time, and to detect whether motion is present in the object based on determined temporal changes in the pattern of light, the motion representing a frequency source of non-visible content in the object, whereinthe optical sensing component is configured to record a plurality of images of the received pattern at the plural points in time, andthe processing component is configured to calculate motion of corresponding identified segments in the plurality of images by determining which of the identified segments have at least a predetermined rate of change within the plural points in time.
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Accused Products
Abstract
A method and device are provided for detecting non-visible content of an object in a non-contact manner. The device includes a light source configured to emit light toward a surface of an object over a period of time. The device also includes an optical sensing component configured to receive a pattern of light from the surface of the object, and to record the received pattern at plural points in time. In addition, the device includes a processing component configured to determine temporal changes in the pattern during the plural points in time, and to detect whether motion is present in the object based on determined temporal changes in the pattern, where the motion represents a frequency source of non-visible content in the object.
10 Citations
29 Claims
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1. A device for detecting non-visible content of an object in a non-contact manner, the device comprising:
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a light source configured to emit light toward a surface of an object over a period of time, wherein the light source includes a first laser configured to emit a first laser light toward a first surface of the object, and a second laser light source configured to emit a second laser light at a second surface of the object; an optical sensing component configured to receive a pattern of light from the surface of the object, and to record the received pattern of light at plural points in time, wherein the received pattern of light includes a first interference pattern received from the first surface of the object based on the first laser light, and a second interference pattern received from the second surface of the object based on the second laser light; and a processing component configured to determine temporal changes in the pattern of light during the plural points in time, and to detect whether motion is present in the object based on determined temporal changes in the pattern of light, the motion representing a frequency source of non-visible content in the object, wherein the optical sensing component is configured to record a plurality of images of the received pattern at the plural points in time, and the processing component is configured to calculate motion of corresponding identified segments in the plurality of images by determining which of the identified segments have at least a predetermined rate of change within the plural points in time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for detecting non-visible content of an object in a non-contact manner, the method comprising:
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emitting light from a light source toward a surface of an object over a period of time, wherein the light source includes a first laser configured to emit a first laser light toward a first surface of the object, and a second laser light source configured to emit a second laser light at a second surface of the object; receiving, by an optical sensing component, a pattern of light from the surface of the object, and to record the received pattern of light at plural points in time, wherein the received pattern of light includes a first interference pattern received from the first surface of the object based on the first laser light, and a second interference pattern received from the second surface of the object based on the second laser light; and determining, by a processor of a computer processing device, temporal changes in the pattern of light during the plural points in time; and detecting, by the processor, whether motion is present in the object based on determined temporal changes in the pattern of light, the motion representing a frequency source of non-visible content in the object, wherein the optical sensing component is configured to record a plurality of images of the received pattern at the plural points in time, and the processing component is configured to calculate motion of corresponding identified segments in the plurality of images by determining which of the identified segments have at least a predetermined rate of change within the plural points in time. - View Dependent Claims (26, 27)
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28. A non-transitory computer-readable recording medium having a computer program tangibly recorded thereon that, when executed by a processor of a computer processing device, causes the processor to carry out operations for detecting non- visible content of an object in a non-contact manner, the operations comprising:
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emitting light toward a surface of an object over a period of time, wherein the light source includes a first laser configured to emit a first laser light toward a first surface of the object, and a second laser light source configured to emit a second laser light at a second surface of the object; receiving a pattern of light from the surface of the object, and to record the received pattern of light at plural points in time, wherein the received pattern of light includes a first interference pattern received from the first surface of the object based on the first laser light, and a second interference pattern received from the second surface of the object based on the second laser light; and determining temporal changes in the pattern of light during the plural points in time; and detecting whether motion is present in the object based on determined temporal changes in the pattern of light, the motion representing a frequency source of non-visible content in the object, wherein the optical sensing component is configured to record a plurality of images of the received pattern at the plural points in time, and the processing component is configured to calculate motion of corresponding identified segments in the plurality of images by determining which of the identified segments have at least a predetermined rate of change within the plural points in time.
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29. A device for detecting non-visible content of an object in a non-contact manner, the device comprising:
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a light source configured to emit light toward a surface of an object over a period of time1 wherein the light source includes a first laser configured to emit a first laser light toward a first surface of the object, and a second laser light source configured to emit a second laser light at a second surface of the object; an optical sensing component configured to receive a pattern of light from the surface of the object, and to record the received pattern of light at plural points in time, wherein the received pattern of light includes a first interference pattern received from the first surface of the object based on the first laser light, and a second interference pattern received from the second surface of the object based on the second laser light; and a processing component configured to define the pattern recorded at at least one of the plural points in time as a reference pattern, to determine temporal changes in the pattern of light during the plural points in time by comparing the pattern of light during the plural points in time with the reference pattern, and to detect whether motion is present in the object when determined temporal changes in the pattern of light differ a predetermined amount the reference pattern, the motion representing non-visible content in the object, wherein the optical sensing component is configured to record a plurality of images of the received pattern at the plural points in time, and the processing component is configured to calculate motion of corresponding identified segments in the plurality of images by determining which of the identified segments have at least a predetermined rate of change within the plural points in time.
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Specification