Patents Assigned to Polaris Sensor Technologies, Inc.
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Patent number: 11386648Abstract: In a method of using a polarimeter for improved mapping and perception of objects on the ground, the polarimeter records raw image data to obtain polarized images of an area. The raw image data is processed to form processed images. The processed images are enhanced, and objects are detected and tracked. The polarimeter may be in a vehicle on the ground or in the air.Type: GrantFiled: August 27, 2019Date of Patent: July 12, 2022Assignee: Polaris Sensor Technologies, Inc.Inventors: Todd M. Aycock, David B. Chenault, John S. Harchanko
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Patent number: 11068700Abstract: A method for enhancing an image for facial recognition comprises capturing an image of the face with a polarizer and correcting the polarized image for non-uniformity. Stokes Parameters S0, S1, S2 are obtained by weighted subtraction of the polarized image to form Stokes images. DoLP is computed from the Stokes images, and facial recognition algorithms are applied to the DoLP image. A system for enhancing images for facial recognition comprises a polarimeter configured to record polarized image data of a subject's face, a signal processing unit and logic configured to receive and store in memory the image data from the polarimeter, calculate Stokes parameters from the image data, and compute a DoLP image from the Stokes parameters.Type: GrantFiled: June 4, 2019Date of Patent: July 20, 2021Assignee: POLARIS SENSOR TECHNOLOGIES, INC.Inventors: J. Larry Pezzaniti, David B. Chenault
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Patent number: 11022541Abstract: A method for detecting the presence of foreign fluids on surface comprises estimating an expected polarization response for a foreign fluid desired to be detected. Oil from an oil spill is one such foreign fluid. A polarimeter records raw image data of a surface (e.g., the surface of water) to obtain polarized images of the surface. IR and polarization data products are computed from the polarized images. The IR and polarization data products are converted to multi-dimensional data set to form multi-dimensional imagery. Contrast algorithms are applied to the multi-dimensional imagery to form enhanced contrast images, from which foreign fluids can be automatically detected.Type: GrantFiled: July 30, 2019Date of Patent: June 1, 2021Assignee: Polaris Sensor Technologies, Inc.Inventor: David B. Chenault
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Patent number: 10962625Abstract: In a method of determining the position of an object, raw image data of the sky is recorded using a celestial imaging unit. The last known position, orientation, date, and time data of the object are obtained, and the position of a celestial body is measured. A latitude and longitude of the object is determined by matching the measured celestial body position to the expected celestial body position based on the input parameters. A system for determining a new position of an object comprises a celestial imaging unit configured to record image data of the sky, a signal processing unit, and a signal processing unit configured to receive and store in memory the image data received from the celestial imaging unit. The signal processing unit filters the image to find the positions of celestial objects in the sky. The signal processing unit is further configured to use roll and pitch from an IMU, and date and time from a clock to determine the object's position (latitude and longitude).Type: GrantFiled: June 27, 2019Date of Patent: March 30, 2021Assignee: Polaris Sensor Technologies, Inc.Inventors: Todd M. Aycock, Arthur Lompado, David Chenault, Adam Smith
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Patent number: 10713490Abstract: A system and method for monitoring vehicle traffic and collecting data indicative of pedestrian right of way violations by vehicles is provided. The system comprises memory and logic for monitoring traffic intersections and recording evidence indicating that vehicles have violated pedestrian right of way. Two sensor modalities collecting video data and radar data of the intersection under observation are employed in one embodiment of the system. The violation evidence can be accessed remotely by a traffic official for issuing of traffic citations.Type: GrantFiled: November 20, 2017Date of Patent: July 14, 2020Assignee: Polaris Sensor Technologies, Inc.Inventors: Richard P. Edmondson, Jonathan B. Hanks
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Publication number: 20200110022Abstract: A method for detecting the presence of foreign fluids on surface comprises estimating an expected polarization response for a foreign fluid desired to be detected. Oil from an oil spill is one such foreign fluid. A polarimeter records raw image data of a surface (e.g., the surface of water) to obtain polarized images of the surface. IR and polarization data products are computed from the polarized images. The IR and polarization data products are converted to multi-dimensional data set to form multi-dimensional imagery. Contrast algorithms are applied to the multi-dimensional imagery to form enhanced contrast images, from which foreign fluids can be automatically detected.Type: ApplicationFiled: July 30, 2019Publication date: April 9, 2020Applicant: Polaris Sensor Technologies, Inc.Inventor: David B. Chenault
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Publication number: 20200012841Abstract: In a method of using a polarimeter for improved mapping and perception of objects on the ground, the polarimeter records raw image data to obtain polarized images of an area. The raw image data is processed to form processed images. The processed images are enhanced, and objects are detected and tracked. The polarimeter may be in a vehicle on the ground or in the air.Type: ApplicationFiled: August 27, 2019Publication date: January 9, 2020Applicant: Polaris Sensor Technologies, Inc.Inventors: Todd M. Aycock, David B. Chenault, John S. Harchanko
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Patent number: 10451483Abstract: A short wave infrared polarimeter comprising a pixelated polarizer array and an Indium-Gallium-Arsenide (“InGaAs”) focal plane array. The short wave infrared polarimeter optionally includes a micro-lens array and/or an aperture layer.Type: GrantFiled: June 29, 2018Date of Patent: October 22, 2019Assignee: Polaris Sensor Technologies, Inc.Inventor: J. Larry Pezzaniti
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Patent number: 10408918Abstract: In a method for determining orientation of an object, raw image data of the sky is recorded using a sky polarimeter. One or more of Stokes parameters (S0, S1, S2), degree of linear polarization (DoLP), and angle of polarization (AoP) are calculated from the image data to produce a set of processed images. Last known position and time data of the object are obtained, and a known Sun azimuth and elevation are calculated using the last known position and time data. Roll and pitch of the object are found, and the roll and pitch data are used to find a zenith in the processed images. The yaw/heading of the object is determined using the difference between a polarization angle at the zenith and a calculated Sun azimuth.Type: GrantFiled: May 8, 2018Date of Patent: September 10, 2019Assignee: Polaris Sensor Technologies, Inc.Inventors: Todd Michael Aycock, David B. Chenault, Arthur Lompado, J. Larry Pezzaniti
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Patent number: 10395113Abstract: A method for detecting and tracking aerial objects and vehicles comprises recording raw image data using a polarimeter to obtain polarized images of the sky. The images are then corrected for non-uniformity, optical distortion, and registration. IR and polarization data products are computed, and the resultant data products are converted to a multi-dimensional data set for exploitation. Contrast enhancement algorithms are applied to the multi-dimensional imagery to form enhanced object images. The enhanced object images may then be displayed to a user, and/or an annunciator may announce the presence of an object.Type: GrantFiled: March 6, 2017Date of Patent: August 27, 2019Assignee: Polaris Sensor Technologies, Inc.Inventors: Todd M. Aycock, David B. Chenault, John S. Harchanko
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Patent number: 10365210Abstract: A method for detecting the presence of foreign fluids on surface comprises estimating an expected polarization response for a foreign fluid desired to be detected. Oil from an oil spill is one such foreign fluid. A polarimeter records raw image data of a surface (e.g., the surface of water) to obtain polarized images of the surface. IR and polarization data products are computed from the polarized images. The IR and polarization data products are converted to multi-dimensional data set to form multi-dimensional imagery. Contrast algorithms are applied to the multi-dimensional imagery to form enhanced contrast images, from which foreign fluids can be automatically detected.Type: GrantFiled: May 10, 2018Date of Patent: July 30, 2019Assignee: Polaris Sensor Technologies, Inc.Inventor: David B. Chenault
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Patent number: 10311285Abstract: A method for enhancing an image for facial recognition comprises capturing an image of the face with a polarizer and correcting the polarized image for non-uniformity. Stokes Parameters S0, S1, S2 are obtained by weighted subtraction of the polarized image to form Stokes images. DoLP is computed from the Stokes images, and facial recognition algorithms are applied to the DoLP image. A system for enhancing images for facial recognition comprises a polarimeter configured to record polarized image data of a subject's face, a signal processing unit and logic configured to receive and store in memory the image data from the polarimeter, calculate Stokes parameters from the image data, and compute a DoLP image from the Stokes parameters.Type: GrantFiled: January 22, 2015Date of Patent: June 4, 2019Assignee: POLARIS SENSOR TECHNOLOGIES, INC.Inventors: J. Larry Pezzaniti, David B. Chenault
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Publication number: 20180328836Abstract: A method for detecting the presence of foreign fluids on surface comprises estimating an expected polarization response for a foreign fluid desired to be detected. Oil from an oil spill is one such foreign fluid. A polarimeter records raw image data of a surface (e.g., the surface of water) to obtain polarized images of the surface. IR and polarization data products are computed from the polarized images. The IR and polarization data products are converted to multi-dimensional data set to form multi-dimensional imagery. Contrast algorithms are applied to the multi-dimensional imagery to form enhanced contrast images, from which foreign fluids can be automatically detected.Type: ApplicationFiled: May 10, 2018Publication date: November 15, 2018Applicant: Polaris Sensor Technologies, Inc.Inventor: David B. Chenault
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Publication number: 20180259617Abstract: In a method for determining orientation of an object, raw image data of the sky is recorded using a sky polarimeter. One or more of Stokes parameters (S0, S1, S2), degree of linear polarization (DoLP), and angle of polarization (AoP) are calculated from the image data to produce a set of processed images. Last known position and time data of the object are obtained, and a known Sun azimuth and elevation are calculated using the last known position and time data. Roll and pitch of the object are found, and the roll and pitch data are used to find a zenith in the processed images. The yaw/heading of the object is determined using the difference between a polarization angle at the zenith and a calculated Sun azimuth.Type: ApplicationFiled: May 8, 2018Publication date: September 13, 2018Applicant: Polaris Sensor Technologies, Inc.Inventors: Todd Michael Aycock, David B. Chenault, Arthur Lompado, J. Larry Pezzaniti
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Patent number: 10031026Abstract: A short wave infrared polarimeter comprising a pixelated polarizer array and an Indium-Gallium-Arsenide (“InGaAs”) focal plane array. The short wave infrared polarimeter optionally includes a micro-lens array and/or an aperture layer.Type: GrantFiled: April 26, 2017Date of Patent: July 24, 2018Assignee: Polaris Sensor Technologies, Inc.Inventor: J Larry Pezzaniti
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Patent number: 9989625Abstract: A system for determining a new orientation and/or position of an object comprises a sky polarimeter configured to record image data of the sky, a signal processing unit, and logic configured to receive and store in memory the image data received from the sky polarimeter. The logic calculates the Stokes parameters (S0, S1, S2,), DoLP, and AoP from the image data, detects obscurants and filters the obscurants (such as clouds and trees) from the image data to produce a filtered image. The logic is further configured to find the Sun and zenith in the filtered image, and to determine the roll, pitch, yaw, latitude and longitude of the object using the filtered image.Type: GrantFiled: August 18, 2016Date of Patent: June 5, 2018Assignee: Polaris Sensor Technologies, Inc.Inventors: Todd Michael Aycock, David B. Chenault, Arthur Lompado, J. Larry Pezzaniti
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Patent number: 9970861Abstract: A method using Infrared Imaging Polarimetry for detecting the presence of foreign fluids on water comprises estimating an expected polarization response for a foreign fluid desired to be detected. Oil from an oil spill is one such foreign fluid. An optimal position of a polarimeter to take images of the water's surface is determined from the expected polarization response. The polarimeter is positioned at the optimal position and records raw image data of the water's surface to obtain polarized images of the area. The polarized images are corrected, and IR and polarization data products are computed. The IR and polarization data products are converted to multi-dimensional data set to form multi-dimensional imagery. Contrast algorithms are applied to the multi-dimensional imagery to form enhanced contrast images, from which foreign fluids can be automatically detected.Type: GrantFiled: December 22, 2016Date of Patent: May 15, 2018Assignee: Polaris Sensor Technologies, Inc.Inventor: David B. Chenault
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Publication number: 20180075303Abstract: A system and method for monitoring vehicle traffic and collecting data indicative of pedestrian right of way violations by vehicles is provided. The system comprises memory and logic for monitoring traffic intersections and recording evidence indicating that vehicles have violated pedestrian right of way. Two sensor modalities collecting video data and radar data of the intersection under observation are employed in one embodiment of the system. The violation evidence can be accessed remotely by a traffic official for issuing of traffic citations.Type: ApplicationFiled: November 20, 2017Publication date: March 15, 2018Applicant: Polaris Sensor Technologies, Inc.Inventors: Richard P. Edmondson, Jonathan B. Hanks
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Publication number: 20180005012Abstract: A method for detecting and tracking aerial objects and vehicles comprises recording raw image data using a polarimeter to obtain polarized images of the sky. The images are then corrected for non-uniformity, optical distortion, and registration. IR and polarization data products are computed, and the resultant data products are converted to a multi-dimensional data set for exploitation. Contrast enhancement algorithms are applied to the multi-dimensional imagery to form enhanced object images. The enhanced object images may then be displayed to a user, and/or an annunciator may announce the presence of an object.Type: ApplicationFiled: March 6, 2017Publication date: January 4, 2018Applicant: Polaris Sensor Technologies, Inc.Inventors: Todd M. Aycock, David B. Chenault, Jonathan B. Hanks, John S. Harchanko
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Patent number: 9829384Abstract: A long wave infrared imaging polarimeter (LWIP) is disclosed including a pixilated polarizing array (PPA) in close proximity to a microbolometer focal plane array (MFPA), along with an alignment engine for aligning and bonding the PPA and MFPA and method for assembly.Type: GrantFiled: September 15, 2015Date of Patent: November 28, 2017Assignee: Polaris Sensor Technologies, Inc.Inventors: J Larry Pezzaniti, Justin Parker Vaden, Michael Ernest Roche