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公开(公告)号：US20230079355A1
公开(公告)日：2023-03-16
申请号：US17987280
申请日：2022-11-15
申请人： STMicroelectronics SA , STMicroelectronics, Inc. , STMicroelectronics (Research & Development) Limited
发明人： Darin K. Winterton , Donald Baxter , Andrew Hodgson , Gordon Lunn , Olivier Pothier , Kalyan-Kumar Vadlamudi-Reddy
IPC分类号： H04N5/232
摘要： 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.
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公开(公告)号：US11528407B2
公开(公告)日：2022-12-13
申请号：US17122667
申请日：2020-12-15
申请人： STMicroelectronics, Inc. , STMicroelectronics SA , STMicroelectronics (Research & Development) Limited
发明人： Darin K. Winterton , Donald Baxter , Andrew Hodgson , Gordon Lunn , Olivier Pothier , Kalyan-Kumar Vadlamudi-Reddy
IPC分类号： H04N5/232
摘要： 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.
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公开(公告)号：US20220196834A1
公开(公告)日：2022-06-23
申请号：US17554825
申请日：2021-12-17
申请人： STMicroelectronics SA , STMicroelectronics (Research & Development) Limited , STMicroelectronics, Inc.
IPC分类号： G01S17/08
摘要： 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.
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公开(公告)号：US20220191402A1
公开(公告)日：2022-06-16
申请号：US17122667
申请日：2020-12-15
申请人： STMicroelectronics, Inc. , STMicroelectronics SA , STMicroelectronics (Research & Development) Limited
发明人： Darin K. Winterton , Donald Baxter , Andrew Hodgson , Gordon Lunn , Olivier Pothier , Kalyan-Kumar Vadlamudi-Reddy
摘要： 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.
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公开(公告)号：US20240015400A1
公开(公告)日：2024-01-11
申请号：US18470702
申请日：2023-09-20
申请人： STMicroelectronics SA , STMicroelectronics, Inc. , STMicroelectronics (Research & Development) Limited
发明人： Darin K. Winterton , Donald Baxter , Andrew Hodgson , Gordon Lunn , Olivier Pothier , Kalyan-Kumar Vadlamudi-Reddy
CPC分类号： H04N23/675 , H04N23/61 , H04N23/671
摘要： 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.
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公开(公告)号：US11800224B2
公开(公告)日：2023-10-24
申请号：US17987280
申请日：2022-11-15
申请人： STMicroelectronics SA , STMicroelectronics, Inc. , STMicroelectronics (Research & Development) Limited
发明人： Darin K. Winterton , Donald Baxter , Andrew Hodgson , Gordon Lunn , Olivier Pothier , Kalyan-Kumar Vadlamudi-Reddy
CPC分类号： H04N23/675 , H04N23/61 , H04N23/671
摘要： 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.
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公开(公告)号：US10796191B2
公开(公告)日：2020-10-06
申请号：US16142544
申请日：2018-09-26
发明人： Francois De Salivet de Fouchecour , Stuart McLeod , Donald Baxter , Olivier Pothier , Thierry Lebihen
摘要： 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.
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公开(公告)号：US20200097752A1
公开(公告)日：2020-03-26
申请号：US16142544
申请日：2018-09-26
发明人： Francois De Salivet de Fouchecour , Stuart McLeod , Donald Baxter , Olivier Pothier , Thierry Lebihen
摘要： 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.
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9.发明授权公开(公告)号：US11086000B2
公开(公告)日：2021-08-10
申请号：US16000512
申请日：2018-06-05
发明人： Victor Macela , Ed Hawkins , Olivier Pothier , Manu Alibay
IPC分类号： G01S7/48 , G01S7/4865 , G01S17/66 , G06F3/01 , G01S17/88 , G01S17/58 , G01S17/04 , G01S17/894
摘要： 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.
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公开(公告)号：US20240201383A1
公开(公告)日：2024-06-20
申请号：US18538800
申请日：2023-12-13
IPC分类号： G01S17/894 , G01B11/22 , G01S7/481 , G01S7/4865
CPC分类号： G01S17/894 , G01B11/22 , G01S7/4816 , G01S7/4865
摘要： A method includes estimating first distance values associated with a plurality of first pixels, based on light pulses of a first light pulse train having a first period, estimating second distance values associated with a plurality of second pixels, the second distance values being estimated for each second pixel based on a second light pulse train having a second period different from the first period, for each of the first pixels being adjacent to one of the second pixels, validating or invalidating the first distance values, based on a comparison between the estimations of the first distance value and at least one of the second distance values of at least one second adjacent pixel, and storing an indication of the first pixels having been validated and/or invalidated.
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