Patents by Inventor Petronel Bigioi
Petronel Bigioi 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: 11941897Abstract: A vehicle occupant monitoring system, OMS, comprises an image acquisition device with a rolling shutter image sensor configured to selectively operate in either: a full-resolution image mode where an image frame corresponding to the full image sensor is provided; or a region of interest, ROI, mode, where an image frame corresponding to a limited portion of the image sensor is provided. An object detector is configured to receive a full-resolution image from the image sensor and to identify a ROI corresponding to an object of interest within the image. A controller is configured to obtain an image corresponding to the ROI from the image sensor operating in ROI mode, the image having an exposure time long enough for all rows of the ROI to be illuminated by a common pulse of light from at least one infra-red light source and short enough to limit motion blur within the image.Type: GrantFiled: December 9, 2021Date of Patent: March 26, 2024Assignee: FotoNation LimitedInventors: Istvan Andorko, Petronel Bigioi, Piotr Stec
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Patent number: 11902496Abstract: A depth sensing camera system that comprises one or more fisheye lenses and infrared and/or near-infrared image sensors. In some examples, the image sensors may generate output signals based at least in part on receiving radiation via the fisheye lenses. A depth measurement may be calculated based at least in part on the output signals. For example, these output signals may be provided as input to a depth model, which may determine the depth measurement. In some examples, such a depth model may be integrated into an application-specific integrated circuit and/or may be operated by an application processor.Type: GrantFiled: April 19, 2019Date of Patent: February 13, 2024Inventors: Petronel Bigioi, Piotr Stec
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Patent number: 11902671Abstract: A vehicle occupant monitoring system, OMS, comprises: an image acquisition device comprising an image sensor and a lens assembly having a varying transmissivity across a field of view of the image sensor; at least one infra-red, IR, light source disposed within a cabin of the vehicle and being configured to illuminate at least one occupant of the vehicle with varying illumination across the field of view of the image sensor; and an image processing pipeline configured to obtain and pre-process an image acquired from the image sensor in accordance with a lens shading map and a cabin illumination map in order to compensate for both the varying transmissivity and the varying illumination in order to provide a more uniformly illuminated image to a controller for further analysis.Type: GrantFiled: December 9, 2021Date of Patent: February 13, 2024Inventors: Istvan Andorko, Petronel Bigioi, Piotr Stec
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Patent number: 11875573Abstract: An image processing system is configured to receive a first high resolution stream of images and a second lower resolution stream of images from image sources with substantially the same field of view. The system comprises a localizer component configured to provide a location for any object of interest independently of class within successive images of the second stream of images; a classifier configured to: receive one or more locations selectively provided by the localizer, identify a corresponding portion of an image acquired from the first stream at substantially the same time at which an image from the second stream in which an object of interest was identified and return a classification for the type of object within the identified portion of the image from the first stream; and a tracker configured to associate the classification with the location through acquisition of successive images in the second stream.Type: GrantFiled: April 28, 2021Date of Patent: January 16, 2024Inventors: Cosmin Toca, Bogdan Sandoi, Petronel Bigioi
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Patent number: 11863556Abstract: A method operable by a computing device for configuring access for a limited user interface (UI) device to a network service via a local network access point is disclosed. The method comprises the steps of: obtaining from the limited UI device a device identifier via a first out-of-band channel. The device identifier is provided to the network service via a secure network link. A zero knowledge proof (ZKP) challenge is received from the network service. Configuration information is provided to the limited-UI device via a second out-of-band channel, the configuration information including information sufficient to enable the limited-UI device to connect to the local network access point. The ZKP challenge is provided to the limited-UI device via the second out-of-band channel.Type: GrantFiled: April 28, 2021Date of Patent: January 2, 2024Inventors: Peter Corcoran, Ilariu Raducan, Petronel Bigioi
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Publication number: 20230421886Abstract: A method and system for detecting facial expressions in digital images and applications therefore are disclosed. Analysis of a digital image determines whether or not a smile and/or blink is present on a person's face. Face recognition, and/or a pose or illumination condition determination, permits application of a specific, relatively small classifier cascade.Type: ApplicationFiled: June 23, 2023Publication date: December 28, 2023Applicant: Adeia Imaging LLCInventors: Catalina Neghina, Mihnea Gangea, Stefan Petrescu, Emilian David, Petronel Bigioi, Eric Zarakov, Eran Steinberg
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Patent number: 11838634Abstract: A method of generating a digital video image uses a wide-angle field of view (WFOV) lens positioned closely in front of an image sensor array so that the image field of the lens is so curved at the sensor array that different regions of the image field are substantially in focus on the sensor array for different positions of the lens. The method comprises selecting a desired region of interest in the image field of the lens, and adjusting the lens/array distance to bring the region of interest into focus on the sensor array. The in-focus region of interest is stored and at least partially corrected for field-of-view distortion due to the WFOV lens. The corrected image is displayed, locally and/or remotely. These steps are cyclically repeated to provide the video image.Type: GrantFiled: March 5, 2020Date of Patent: December 5, 2023Inventors: Petronel Bigioi, Christopher Dainty, Peter Corcoran
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Patent number: 11778315Abstract: A vehicle occupant monitoring system, OMS, comprises an image acquisition device with a rolling shutter image sensor comprising an array of sub-pixels which are respectively selectively sensitive to: red and infra-red; blue and infra-red; and green and infra-red light. The device is configured to selectively operate in either: a colour mode where a multi-plane image frame corresponding to the full image sensor is provided, each plane derived from red, green or blue sensitive sub-pixels respectively; or a monochrome mode, where sensor information from sub-pixels is aggregated to provide a single image plane.Type: GrantFiled: December 9, 2021Date of Patent: October 3, 2023Inventors: Istvan Andorko, Petronel Bigioi, Piotr Stec
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Patent number: 11727426Abstract: A method of responding to a criterion-based request for information collected from users meeting the criterion while complying with a user-requested privacy requirement. In one embodiment a request is received for data comprising facial or audio expressions for users who meet the criterion. A program monitors activities indicative of user attention or user reaction based on face tracking, face detection, face feature detection, eye gaze determination, eye tracking, audio expression determination, or determination of an emotional state. When a user requests a high level of privacy, the timestream data collected for the user is aggregated with timestream data collected for other users into a statistical dataset by processing the timestreams to ensure the high level of privacy in the statistical dataset which is provided to a content provider without providing data collected for the user who has requested the high level of privacy.Type: GrantFiled: August 26, 2019Date of Patent: August 15, 2023Inventors: Petronel Bigioi, Peter Corcoran
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Patent number: 11689796Abstract: A method and system for detecting facial expressions in digital images and applications therefore are disclosed. Analysis of a digital image determines whether or not a smile and/or blink is present on a person's face. Face recognition, and/or a pose or illumination condition determination, permits application of a specific, relatively small classifier cascade.Type: GrantFiled: December 7, 2021Date of Patent: June 27, 2023Assignee: Adeia Imaging LLCInventors: Catalina Neghina, Mihnea Gangea, Stefan Petrescu, Emilian David, Petronel Bigioi, Eric Zarakov, Eran Steinberg
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Publication number: 20230188838Abstract: A vehicle occupant monitoring system, OMS, comprises an image acquisition device with a rolling shutter image sensor comprising an array of sub-pixels which are respectively selectively sensitive to: red and infra-red; blue and infra-red; and green and infra-red light. The device is configured to selectively operate in either: a colour mode where a multi-plane image frame corresponding to the full image sensor is provided, each plane derived from red, green or blue sensitive sub-pixels respectively; or a monochrome mode, where sensor information from sub-pixels is aggregated to provide a single image plane.Type: ApplicationFiled: December 9, 2021Publication date: June 15, 2023Applicant: FotoNation LimitedInventors: Istvan ANDORKO, Petronel BIGIOI, Piotr STEC
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Publication number: 20230188860Abstract: A vehicle occupant monitoring system, OMS, comprises: an image acquisition device comprising an image sensor and a lens assembly having a varying transmissivity across a field of view of the image sensor; at least one infra-red, IR, light source disposed within a cabin of the vehicle and being configured to illuminate at least one occupant of the vehicle with varying illumination across the field of view of the image sensor; and an image processing pipeline configured to obtain and pre-process an image acquired from the image sensor in accordance with a lens shading map and a cabin illumination map in order to compensate for both the varying transmissivity and the varying illumination in order to provide a more uniformly illuminated image to a controller for further analysis.Type: ApplicationFiled: December 9, 2021Publication date: June 15, 2023Applicant: FotoNation LimitedInventors: Istvan ANDORKO, Petronel BIGIOI, Piotr STEC
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Publication number: 20230186650Abstract: A vehicle occupant monitoring system, OMS, comprises an image acquisition device with a rolling shutter image sensor configured to selectively operate in either: a full-resolution image mode where an image frame corresponding to the full image sensor is provided; or a region of interest, ROI, mode, where an image frame corresponding to a limited portion of the image sensor is provided. An object detector is configured to receive a full-resolution image from the image sensor and to identify a ROI corresponding to an object of interest within the image. A controller is configured to obtain an image corresponding to the ROI from the image sensor operating in ROI mode, the image having an exposure time long enough for all rows of the ROI to be illuminated by a common pulse of light from at least one infra-red light source and short enough to limit motion blur within the image.Type: ApplicationFiled: December 9, 2021Publication date: June 15, 2023Applicant: FotoNation LimitedInventors: Istvan ANDORKO, Petronel BIGIOI, Piotr STEC
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Publication number: 20230169771Abstract: An image processing system comprising a processer configured to receive a sequence of images frames from an image acquisition device and configured to: analyze at least a currently acquired image frame to determine if activity is occurring in an environment with a field of view of the image acquisition device; responsive to analyzing a subsequent image frame acquired after the currently acquired image frame and determining that no activity is occurring in the environment, retrieve an image frame acquired before the currently acquired image frame which has been analyzed and where it has been determined that no activity is occurring in the environment; analyze the subsequent image frame and the retrieved image frame to identify a state of one or more objects within the field of view of the image acquisition device; and responsive to a change in state of the one or more objects, notify a user accordingly.Type: ApplicationFiled: December 1, 2021Publication date: June 1, 2023Applicant: FotoNation LimitedInventors: Petronel BIGIOI, Cosmin TOCA, Ana BALABAN
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Publication number: 20230127692Abstract: A method for calibrating a vehicle cabin camera having: a pitch, yaw and roll angle; and a field of view capturing vehicle cabin features which are symmetric about a vehicle longitudinal axis comprises: selecting points from within an image of the vehicle cabin and projecting the points onto a 3D unit circle in accordance with a camera projection model. For each of one or more rotations of a set of candidate yaw and roll rotations, the method comprises: rotating the projected points with the rotation; flipping the rotated points about a pitch axis; counter-rotating the projected points with an inverse of the rotation; and mapping the counter-rotated points back into an image plane to provide a set of transformed points. A candidate rotation which provides a best match between the set of transformed points and the locations of the selected points in the image plane is selected.Type: ApplicationFiled: December 23, 2022Publication date: April 27, 2023Inventors: Petronel Bigioi, Piotr Stec
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Patent number: 11627262Abstract: A handheld computing device comprises a display comprising an array of pixels illuminated by a plurality of visible light sources, and a plurality of infra-red light sources interleaved between the visible light sources, the IR light sources being actuable to emit diffuse IR light with a first intensity. A camera has an image sensor comprising an array of pixels responsive to infra-red light and a lens assembly with an optical axis extending from the image sensor through the surface of the display. A dedicated illumination source is located outside the display and is actuable to emit infra-red light with a second greater intensity. A processor is configured to switch between an iris region processing mode in which a subject is illuminated at least by the dedicated light source and a face region processing mode in which a subject is illuminated by the plurality of IR light sources.Type: GrantFiled: November 4, 2019Date of Patent: April 11, 2023Inventors: Piotr Stec, Petronel Bigioi, Istvan Andorko
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Publication number: 20230107097Abstract: A method for identifying a gesture from one of a plurality of dynamic gestures, each dynamic gesture comprising a distinct movement made by a user over a period of time within a field of view of an image acquisition device comprises iteratively: acquiring a current image from said image acquisition device at a given time; and passing at least a portion of the current image through a bidirectionally recurrent multi-layer classifier. A final layer of the multi-layer classifier comprises an output indicating a probability that a gesture from the plurality of dynamic gestures is being made by a user during the time of acquiring the image.Type: ApplicationFiled: October 6, 2021Publication date: April 6, 2023Applicant: FotoNation LimitedInventors: Tudor TOPOLEANU, Szabolcs FULOP, Petronel BIGIOI, Cian RYAN, Joseph LEMLEY
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Patent number: 11544966Abstract: An image acquisition system determines first and second sets of points defining an iris-pupil boundary and an iris-sclera boundary in an acquired image; determines respective ellipses fitting the first and second sets of points; determines a transformation to transform one of the ellipses into a circle on a corresponding plane; using the determined transformation, transforms the selected ellipse into a circle on the plane; using the determined transformation, transforms the other ellipse into a transformed ellipse on the plane; determines a plurality of ellipses on the plane for defining an iris grid, by interpolating a plurality of ellipses between the circle and the transformed ellipse; moves the determined grid ellipses onto the iris in the image using an inverse transformation of the determined transformation; and extracts an iris texture by unwrapping the iris and interpolating image pixel values at each grid point defined along each of the grid ellipses.Type: GrantFiled: February 1, 2021Date of Patent: January 3, 2023Assignee: FotoNation LimitedInventors: Brian O'Sullivan, Barry McCullagh, Serghei Carateev, Istvan Andorko, Petronel Bigioi
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Patent number: 11538192Abstract: A method for calibrating a vehicle cabin camera having: a pitch, yaw and roll angle; and a field of view capturing vehicle cabin features which are symmetric about a vehicle longitudinal axis comprises: selecting points from within an image of the vehicle cabin and projecting the points onto a 3D unit circle in accordance with a camera projection model. For each of one or more rotations of a set of candidate yaw and roll rotations, the method comprises: rotating the projected points with the rotation; flipping the rotated points about a pitch axis; counter-rotating the projected points with an inverse of the rotation; and mapping the counter-rotated points back into an image plane to provide a set of transformed points. A candidate rotation which provides a best match between the set of transformed points and the locations of the selected points in the image plane is selected.Type: GrantFiled: August 10, 2021Date of Patent: December 27, 2022Assignee: FotoNation LimitedInventors: Piotr Stec, Petronel Bigioi
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Patent number: 11470241Abstract: A method and system for detecting facial expressions in digital images and applications therefore are disclosed. Analysis of a digital image determines whether or not a smile and/or blink is present on a person's face. Face recognition, and/or a pose or illumination condition determination, permits application of a specific, relatively small classifier cascade.Type: GrantFiled: September 14, 2020Date of Patent: October 11, 2022Inventors: Catalina Neghina, Mihnea Gangea, Stefan Petrescu, Emilian David, Petronel Bigioi, Eric Zarakov, Eran Steinberg