Patents by Inventor Olivier Pothier
Olivier Pothier 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: 11915438Abstract: The method of determination of a depth map of a scene comprises generation of a distance map of the scene obtained by time of flight measurements, acquisition of two images of the scene from two different viewpoints, and stereoscopic processing of the two images taking into account the distance map. The generation of the distance map includes generation of distance histograms acquisition zone by acquisition zone of the scene, and the stereoscopic processing includes, for each region of the depth map corresponding to an acquisition zone, elementary processing taking into account the corresponding histogram.Type: GrantFiled: September 17, 2021Date of Patent: February 27, 2024Assignee: STMicroelectronics FranceInventors: Manu Alibay, Olivier Pothier, Victor Macela, Alain Bellon, Arnaud Bourge
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Publication number: 20240015400Abstract: A method includes dividing a field of view into a plurality of zones and sampling the field of view to generate a photon count for each zone of the plurality of zones, identifying a focal sector of the field of view and analyzing each zone to select a final focal object from a first prospective focal object and a second prospective focal object.Type: ApplicationFiled: September 20, 2023Publication date: January 11, 2024Inventors: Darin K. Winterton, Donald Baxter, Andrew Hodgson, Gordon Lunn, Olivier Pothier, Kalyan-Kumar Vadlamudi-Reddy
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Patent number: 11800224Abstract: A method includes dividing a field of view into a plurality of zones and sampling the field of view to generate a photon count for each zone of the plurality of zones, identifying a focal sector of the field of view and analyzing each zone to select a final focal object from a first prospective focal object and a second prospective focal object.Type: GrantFiled: November 15, 2022Date of Patent: October 24, 2023Assignees: STMicroelectronics SA, STMicroelectronics, Inc., STMicroelectronics (Research & Development) LimitedInventors: Darin K. Winterton, Donald Baxter, Andrew Hodgson, Gordon Lunn, Olivier Pothier, Kalyan-Kumar Vadlamudi-Reddy
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Publication number: 20230079355Abstract: A method includes dividing a field of view into a plurality of zones and sampling the field of view to generate a photon count for each zone of the plurality of zones, identifying a focal sector of the field of view and analyzing each zone to select a final focal object from a first prospective focal object and a second prospective focal object.Type: ApplicationFiled: November 15, 2022Publication date: March 16, 2023Inventors: Darin K. Winterton, Donald Baxter, Andrew Hodgson, Gordon Lunn, Olivier Pothier, Kalyan-Kumar Vadlamudi-Reddy
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Patent number: 11528407Abstract: A method includes dividing a field of view into a plurality of zones and sampling the field of view to generate a photon count for each zone of the plurality of zones, identifying a focal sector of the field of view and analyzing each zone to select a final focal object from a first prospective focal object and a second prospective focal object.Type: GrantFiled: December 15, 2020Date of Patent: December 13, 2022Assignees: STMICROELECTRONICS SA, STMICROELECTRONICS, INC., STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITEDInventors: Darin K. Winterton, Donald Baxter, Andrew Hodgson, Gordon Lunn, Olivier Pothier, Kalyan-Kumar Vadlamudi-Reddy
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Patent number: 11500097Abstract: A method includes emitting, by a single sensor of a device, a signal into a region; receiving, by the single sensor, a reflected signal; and detecting motion in a detection cone comprising a central axis based on the reflected signal, wherein detecting motion comprises detecting a first type of motion from a first position to a second position, and detecting a second type of motion from the second position to the first position.Type: GrantFiled: April 3, 2019Date of Patent: November 15, 2022Assignees: STMicroelectronics SA, STMicroelectronics (Grenoble 2) SASInventors: Giovanni Scozzola, Olivier Pothier
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Publication number: 20220308173Abstract: Method, having detecting from a first histogram signal delivered by a sensor device, successive sets of targets at respective successive instants, determining for a current set of current detected targets, a current histogram output, the current histogram output having for each current detected target of the current set, a current group of parameters stored in a memory including a confidence indicator, performing a matching operation between the current set of detected targets and previous sets of detected targets stored in the memory, and performing a filtering operation of at least one parameter of the current group of parameters of at least some of the current detected targets of the current set, on the basis of the result of the matching operation, the filtering operation being weighted on the basis of at least the confidence indicators of current and previous sets of detected targets.Type: ApplicationFiled: March 21, 2022Publication date: September 29, 2022Inventors: Olivier Pothier, Victor Macela, Thierry Lebihen, Arnaud Bourge
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Publication number: 20220196834Abstract: A method can be used to detect the presence an object within a field of view of a time-of-flight sensor. A histogram generated by the time-of-flight sensor is obtained. The histogram includes a number of bins associating a number of detected photons to a given acquisition time. A portion of the bins of the histogram is transformed into points in a transformed domain that features a first area containing only points associated to bins representative of the presence of the object and a second area having only points associated to bins not representative of the presence of the object. The bins of the histogram representative of the presence of the object are identified from the points located in the first area.Type: ApplicationFiled: December 17, 2021Publication date: June 23, 2022Inventors: Olivier Pothier, Philippe Legeard, Donald Baxter, Edward Hawkins
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Publication number: 20220191402Abstract: A method includes dividing a field of view into a plurality of zones and sampling the field of view to generate a photon count for each zone of the plurality of zones, identifying a focal sector of the field of view and analyzing each zone to select a final focal object from a first prospective focal object and a second prospective focal object.Type: ApplicationFiled: December 15, 2020Publication date: June 16, 2022Inventors: Darin K. Winterton, Donald Baxter, Andrew Hodgson, Gordon Lunn, Olivier Pothier, Kalyan-Kumar Vadlamudi-Reddy
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Publication number: 20220005214Abstract: The method of determination of a depth map of a scene comprises generation of a distance map of the scene obtained by time of flight measurements, acquisition of two images of the scene from two different viewpoints, and stereoscopic processing of the two images taking into account the distance map. The generation of the distance map includes generation of distance histograms acquisition zone by acquisition zone of the scene, and the stereoscopic processing includes, for each region of the depth map corresponding to an acquisition zone, elementary processing taking into account the corresponding histogram.Type: ApplicationFiled: September 17, 2021Publication date: January 6, 2022Inventors: Manu Alibay, Olivier Pothier, Victor Macela, Alain Bellon, Arnaud Bourge
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Patent number: 11138749Abstract: The method of determination of a depth map of a scene comprises generation of a distance map of the scene obtained by time of flight measurements, acquisition of two images of the scene from two different viewpoints, and stereoscopic processing of the two images taking into account the distance map. The generation of the distance map includes generation of distance histograms acquisition zone by acquisition zone of the scene, and the stereoscopic processing includes, for each region of the depth map corresponding to an acquisition zone, elementary processing taking into account the corresponding histogram.Type: GrantFiled: August 22, 2019Date of Patent: October 5, 2021Assignee: STMICROELECTRONICS SAInventors: Manu Alibay, Olivier Pothier, Victor Macela, Alain Bellon, Arnaud Bourge
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Patent number: 11086000Abstract: A method for acquiring tracking points belonging to a trajectory of a target object in motion, includes: emitting a radiation towards the target object; receiving a reflection of the radiation from the target object in respective fields of view of each detection zone of a network of detection zones; processing the reflection by determining distances separating the target object from an origin point by measuring a time of flight of the radiation in each detection zone; determining a degree of coverage of each detection zone; and estimating, based on the distances and on the degree of coverage of each detection zone, a position of a tracking point corresponding to a position of an extremity of the target object inside a respective detection zone chosen in a direction of motion of the target object.Type: GrantFiled: June 5, 2018Date of Patent: August 10, 2021Assignees: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED, STMICROELECTRONICS S.A.Inventors: Victor Macela, Ed Hawkins, Olivier Pothier, Manu Alibay
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Patent number: 10796191Abstract: An example device has optical emitters for emitting incident radiation within a field of view and optical detectors for receiving reflected radiation. Based on the incident radiation and the reflected radiation, a histogram indicative of a number of photon events that are detected by the optical detectors over time bins is generated. The time bins is indicative of time differences between emission of the incident radiation and reception of the reflected radiation. The device further includes; a processor programmed to iteratively process the histogram by executing an expectation-maximization algorithm to detect a presence of objects located in the field of view of the device.Type: GrantFiled: September 26, 2018Date of Patent: October 6, 2020Assignees: STMicroelectronics SA, STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITEDInventors: Francois De Salivet de Fouchecour, Stuart McLeod, Donald Baxter, Olivier Pothier, Thierry Lebihen
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Publication number: 20200097752Abstract: An embodiment device includes: a plurality of optical emitters configured to emit incident radiation within a field of view of the device; a plurality of optical detectors configured to receive reflected radiation and to generate a histogram based on the incident radiation and the reflected radiation, the histogram being indicative of a number of photon events detected by the plurality of optical detectors over a plurality of time bins, the plurality of time bins being indicative of a plurality of time differences between emission of the incident radiation and reception of the reflected radiation; and a processor configured to iteratively process the histogram by executing an expectation-maximization algorithm to detect a presence of objects located in the field of view of the device.Type: ApplicationFiled: September 26, 2018Publication date: March 26, 2020Inventors: Francois De Salivet de Fouchecour, Stuart McLeod, Donald Baxter, Olivier Pothier, Thierry Lebihen
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Publication number: 20190385320Abstract: The method of determination of a depth map of a scene comprises generation of a distance map of the scene obtained by time of flight measurements, acquisition of two images of the scene from two different viewpoints, and stereoscopic processing of the two images taking into account the distance map. The generation of the distance map includes generation of distance histograms acquisition zone by acquisition zone of the scene, and the stereoscopic processing includes, for each region of the depth map corresponding to an acquisition zone, elementary processing taking into account the corresponding histogram.Type: ApplicationFiled: August 22, 2019Publication date: December 19, 2019Inventors: Manu Alibay, Olivier Pothier, Victor Macela, Alain Bellon, Arnaud Bourge
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Publication number: 20190331798Abstract: A method includes emitting, by a single sensor of a device, a signal into a region; receiving, by the single sensor, a reflected signal; and detecting motion in a detection cone comprising a central axis based on the reflected signal, wherein detecting motion comprises detecting a first type of motion from a first position to a second position, and detecting a second type of motion from the second position to the first position.Type: ApplicationFiled: April 3, 2019Publication date: October 31, 2019Inventors: Giovanni Scozzola, Olivier Pothier
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Patent number: 10445892Abstract: The method of determination of a depth map of a scene comprises generation of a distance map of the scene obtained by time of flight measurements, acquisition of two images of the scene from two different viewpoints, and stereoscopic processing of the two images taking into account the distance map. The generation of the distance map includes generation of distance histograms acquisition zone by acquisition zone of the scene, and the stereoscopic processing includes, for each region of the depth map corresponding to an acquisition zone, elementary processing taking into account the corresponding histogram.Type: GrantFiled: August 31, 2017Date of Patent: October 15, 2019Assignee: STMICROELECTRONICS SAInventors: Manu Alibay, Olivier Pothier, Victor Macela, Alain Bellon, Arnaud Bourge
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Patent number: 10429940Abstract: An electronic device includes at least one laser source configured to direct laser radiation toward a user's hand. Laser detectors are configured to receive reflected laser radiation from the user's hand. A controller is coupled to the at least one laser source and laser detectors and configured to determine a set of distance values to the user's hand for each respective laser detector and based upon a time-of-flight of the laser radiation. The controller also determines a hand gesture from among a plurality of possible hand gestures based upon the sets of distance values using Bayesian probabilities.Type: GrantFiled: December 28, 2017Date of Patent: October 1, 2019Assignee: STMicroelectronics SAInventor: Olivier Pothier
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Patent number: 10379619Abstract: A method for controlling an apparatus, includes steps of: determining distance measurements of an object in a first direction, using distance sensors defining between them a second direction different from the first direction, assessing a first inclination of the object in relation to a second direction based on the distance measurements, and determining a first command of the apparatus according to the inclination assessment.Type: GrantFiled: November 25, 2014Date of Patent: August 13, 2019Assignees: STMicroelectronics SA, STMicroelectronics (Grenoble 2) SASInventors: Marc Drader, Jérémie Teyssier, Olivier Pothier
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Patent number: 10303254Abstract: An electronic device includes a laser source configured to direct laser radiation toward a user's hand. A laser detector is configured to receive reflected laser radiation from the user's hand. A controller is coupled to the laser source and laser detector and configured to determine a plurality of distance values to the user's hand based upon a time-of-flight of the laser radiation, calculate a mean absolute deviation (MAD) value based upon the plurality of distance values, and identify whether the user's hand is moving in a first or second gesture based upon the MAD value.Type: GrantFiled: September 24, 2015Date of Patent: May 28, 2019Assignee: STMicroelectronics SAInventor: Olivier Pothier