Patents by Inventor Kevin F. Kelly
Kevin F. Kelly has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9521306Abstract: Compressive imaging apparatus employing multiple modulators in various optical schemes to generate the modulation patterns before the signal is recorded at a detector. The compressive imaging apparatus is equally valid when applying compressive imaging to structured light embodiments where the placement is shifted from the acquisition path between the subject and the detector into the illumination path between the source and the subject to be imaged.Type: GrantFiled: July 28, 2015Date of Patent: December 13, 2016Assignee: William Marsh Rice UniversityInventors: Kevin F Kelly, Richard G Baraniuk, Gary Woods, Ting Sun, Matthew Turner
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Publication number: 20160014310Abstract: Compressive imaging apparatus employing multiple modulators in various optical schemes to generate the modulation patterns before the signal is recorded at a detector. The compressive imaging apparatus is equally valid when applying compressive imaging to structured light embodiments where the placement is shifted from the acquisition path between the subject and the detector into the illumination path between the source and the subject to be imaged.Type: ApplicationFiled: July 28, 2015Publication date: January 14, 2016Inventors: Kevin F. Kelly, Richard G. Baraniuk, Gary Woods, Ting Sun, Matthew Turner
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Patent number: 9124755Abstract: Compressive imaging apparatus employing multiple modulators in various optical schemes to generate the modulation patterns before the signal is recorded at a detector. The compressive imaging apparatus is equally valid when applying compressive imaging to structured light embodiments where the placement is shifted from the acquisition path between the subject and the detector into the illumination path between the source and the subject to be imaged.Type: GrantFiled: December 7, 2010Date of Patent: September 1, 2015Assignee: William Marsh Rice UniversityInventors: Kevin F. Kelly, Richard G. Baraniuk, Gary Woods, Ting Sun, Matthew Turner
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Patent number: 8885073Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.Type: GrantFiled: September 4, 2013Date of Patent: November 11, 2014Assignee: InView Technology CorporationInventors: Richard G. Barnaiuk, Kevin F. Kelly, Robert F. Bridge, Sujoy Chatterjee, Lenore McMackin
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Patent number: 8860835Abstract: Mechanisms for increasing the rate of acquisition of compressed/encoded image representations are disclosed. An imaging system may deliver subsets of a modulated light stream onto respective light sensing devices. The light sensing devices may be sampled in parallel. Samples from each light sensing device may be used to construct a respective sub-image of a final image. The parallelism allows compressed images to be acquired at a higher rate. The number of light sensing devices and/or the number of pixels per image may be selected to achieve a target image acquisition rate. In another embodiment, spatial portions of the incident light stream are separated and delivered to separate light modulators. In yet another embodiment, the incident light stream is split into a plurality of beams, each of which retains the image present in the incident light stream and is delivered to a separate light modulator.Type: GrantFiled: August 3, 2011Date of Patent: October 14, 2014Assignee: InView Technology CorporationInventors: Kevin F. Kelly, Richard G. Baraniuk, Lenore McMackin, Robert F. Bridge, Sujoy Chatterjee, Tyler H. Weston
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Patent number: 8848091Abstract: A new digital image/video camera that directly acquires random projections of the incident light field without first collecting the pixels/voxels. In one preferred embodiment, the camera employs a digital micromirror array to perform optical calculations of linear projections of an image onto pseudorandom binary patterns. Its hallmarks include the ability to obtain an image with only a single detection element while measuring the image/video fewer times than the number of pixels or voxels—this can significantly reduce the computation required for image/video acquisition/encoding. Since the system features a single photon detector, it can also be adapted to image at wavelengths that are currently impossible with conventional CCD and CMOS imagers.Type: GrantFiled: May 2, 2012Date of Patent: September 30, 2014Assignee: William Marsh Rice UniversityInventors: Richard g. Baraniuk, Dror Z. Baron, Marco F. Duarte, Kevin F. Kelly, Courtney C. Lane, Jason N. Laska, Dharmpal Takhar, Michael B. Wakin
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Patent number: 8717466Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.Type: GrantFiled: September 4, 2013Date of Patent: May 6, 2014Assignee: InView Technology CorporationInventors: Richard G. Baraniuk, Kevin F. Kelly, Robert F. Bridge, Sujoy Chatterjee, Lenore McMackin
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Patent number: 8634009Abstract: A compressive imaging system for optimizing dynamic range during the acquisition of compressed images. A light modulator modulates incident light with spatial patterns to produced modulated light. A light sensing device generates an electrical signal representing intensity of the modulated light over time. The system amplifies a difference between the electrical signal and an adjustable baseline voltage and captures samples of the amplified signal. The adjustable baseline voltage is set to be approximately equal to the average value of the electrical signal. A compressive imaging system for identifying and correcting hot spot(s) in the incident light field. Search patterns are sent to the light modulator and the corresponding samples of the electrical signal are analyzed. Once the hot spot is located, the light modulating elements corresponding to the hot spot may be turned off or their duty cycle may be reduced.Type: GrantFiled: August 10, 2011Date of Patent: January 21, 2014Assignee: InView Technology CorporationInventors: Kevin F. Kelly, Gary L. Woods, Lenore McMackin, Robert F. Bridge, James M. Tidman, Donna E. Hewitt
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Publication number: 20140009638Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.Type: ApplicationFiled: September 4, 2013Publication date: January 9, 2014Applicant: InView Technology CorporationInventors: Richard G. Baraniuk, Kevin F. Kelly, Robert F. Bridge, Sujoy Chatterjee, Lenore McMackin
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Publication number: 20140002721Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.Type: ApplicationFiled: September 4, 2013Publication date: January 2, 2014Applicant: InView Technology CorporationInventors: Richard G. Baraniuk, Kevin F. Kelly, Robert F. Bridge, Sujoy Chatterjee, Lenore McMackin
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Patent number: 8570405Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.Type: GrantFiled: July 28, 2011Date of Patent: October 29, 2013Assignee: InView Technology CorporationInventors: Kevin F. Kelly, Richard G. Baraniuk, Leonore McMackin, Robert F. Bridge, Sujoy Chatterjee, Donna E. Hewitt, Tyler H. Weston
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Patent number: 8570406Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.Type: GrantFiled: July 28, 2011Date of Patent: October 29, 2013Assignee: InView Technology CorporationInventors: Kevin F. Kelly, Richard G. Baraniuk, Lenore McMackin, Robert F. Bridge, Sujoy Chatterjee, Donna E. Hewitt, Tyler H. Weston
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Publication number: 20130070138Abstract: A method and apparatus using the techniques of compressive sensing, which has so far been applied mostly to improving a single-pixel detector into an effectively N-pixel detector, for improving a P-pixel detector array into an effectively P×N-pixel detector array.Type: ApplicationFiled: February 22, 2011Publication date: March 21, 2013Inventors: Richard G Baraniuk, Kevin F. Kelly, Gary Woods
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Publication number: 20120314099Abstract: Compressive imaging apparatus employing multiple modulators in various optical schemes to generate the modulation patterns before the signal is recorded at a detector. The compressive imaging apparatus is equally valid when applying compressive imaging to structured light embodiments where the placement is shifted from the acquisition path between the subject and the detector into the illumination path between the source and the subject to be imaged.Type: ApplicationFiled: December 7, 2010Publication date: December 13, 2012Inventors: Kevin F Kelly, Richard G. Baraniuk, Gary Woods, Ting Sun, Matthew Turner
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Publication number: 20120213270Abstract: A new digital image/video camera that directly acquires random projections of the incident light field without first collecting the pixels/voxels. In one preferred embodiment, the camera employs a digital micromirror array to perform optical calculations of linear projections of an image onto pseudorandom binary patterns. Its hallmarks include the ability to obtain an image with only a single detection element while measuring the image/video fewer times than the number of pixels or voxels—this can significantly reduce the computation required for image/video acquisition/encoding. Since the system features a single photon detector, it can also be adapted to image at wavelengths that are currently impossible with conventional CCD and CMOS imagers.Type: ApplicationFiled: May 2, 2012Publication date: August 23, 2012Inventors: Richard G. Baraniuk, Dror Z. Baron, Marco F. Duarte, Kevin F. Kelly, Courtney C. Lane, Jason N. Laska, Dharmpal Takhar, Michael B. Wakin
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Patent number: 8199244Abstract: A new digital image/video camera that directly acquires random projections of the incident light field without first collecting the pixels/voxels. In one preferred embodiment, the camera employs a digital micromirror array to perform optical calculations of linear projections of an image onto pseudorandom binary patterns. Its hallmarks include the ability to obtain an image with only a single detection element while measuring the image/video fewer times than the number of pixels or voxels—this can significantly reduce the computation required for image/video acquisition/encoding. Since the system features a single photon detector, it can also be adapted to image at wavelengths that are currently impossible with conventional CCD and CMOS imagers.Type: GrantFiled: June 1, 2010Date of Patent: June 12, 2012Assignee: William Marsh Rice UniversityInventors: Richard G. Baraniuk, Dror Z. Baron, Marco F. Duarte, Kevin F. Kelly, Courtney C. Lane, Jason N. Laska, Dharmpal Takhar, Michael B. Wakin
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Publication number: 20120038790Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.Type: ApplicationFiled: July 28, 2011Publication date: February 16, 2012Inventors: Kevin F. Kelly, Richard G. Baraniuk, Lenore McMackin, Robert F. Bridge, Sujoy Chatterjee, Donna E. Hewitt, Tyler H. Weston
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Publication number: 20120038786Abstract: Mechanisms for increasing the rate of acquisition of compressed/encoded image representations are disclosed. An imaging system may deliver subsets of a modulated light stream onto respective light sensing devices. The light sensing devices may be sampled in parallel. Samples from each light sensing device may be used to construct a respective sub-image of a final image. The parallelism allows compressed images to be acquired at a higher rate. The number of light sensing devices and/or the number of pixels per image may be selected to achieve a target image acquisition rate. In another embodiment, spatial portions of the incident light stream are separated and delivered to separate light modulators. In yet another embodiment, the incident light stream is split into a plurality of beams, each of which retains the image present in the incident light stream and is delivered to a separate light modulator.Type: ApplicationFiled: August 3, 2011Publication date: February 16, 2012Inventors: Kevin F. Kelly, Richard G. Baraniuk, Lenore McMackin, Robert F. Bridge, Sujoy Chatterjee, Tyler H. Weston
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Publication number: 20120038789Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.Type: ApplicationFiled: July 28, 2011Publication date: February 16, 2012Inventors: Kevin F. Kelly, Richard G. Baraniuk, Lenore McMackin, Robert F. Bridge, Sujoy Chatterjee, Donna E. Hewitt, Tyler H. Weston
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Publication number: 20120038805Abstract: A compressive imaging system for optimizing dynamic range during the acquisition of compressed images. A light modulator modulates incident light with spatial patterns to produced modulated light. A light sensing device generates an electrical signal representing intensity of the modulated light over time. The system amplifies a difference between the electrical signal and an adjustable baseline voltage and captures samples of the amplified signal. The adjustable baseline voltage is set to be approximately equal to the average value of the electrical signal. A compressive imaging system for identifying and correcting hot spot(s) in the incident light field. Search patterns are sent to the light modulator and the corresponding samples of the electrical signal are analyzed. Once the hot spot is located, the light modulating elements corresponding to the hot spot may be turned off or their duty cycle may be reduced.Type: ApplicationFiled: August 10, 2011Publication date: February 16, 2012Inventors: Kevin F. Kelly, Richard G. Baraniuk, Gary L. Woods, Lenore McMackin, Robert F. Bridge, James M. Tidman, Donna E. Hewitt