Patents by Inventor Stefan Petrescu

Stefan Petrescu 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).

  • Patent number: 12167119
    Abstract: 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: Grant
    Filed: June 23, 2023
    Date of Patent: December 10, 2024
    Assignee: Adeia Imaging LLC
    Inventors: Catalina Neghina, Mihnea Gangea, Stefan Petrescu, Emilian David, Petronel Bigioi, Eric Zarakov, Eran Steinberg
  • Publication number: 20240373117
    Abstract: 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: Application
    Filed: July 18, 2024
    Publication date: November 7, 2024
    Applicant: Adeia Imaging LLC
    Inventors: Catalina Neghina, Mihnea Gangea, Stefan Petrescu, Emilian David, Petronel Bigioi, Eric Zarakov, Eran Steinberg
  • Publication number: 20230421886
    Abstract: 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: Application
    Filed: June 23, 2023
    Publication date: December 28, 2023
    Applicant: Adeia Imaging LLC
    Inventors: Catalina Neghina, Mihnea Gangea, Stefan Petrescu, Emilian David, Petronel Bigioi, Eric Zarakov, Eran Steinberg
  • Patent number: 11715333
    Abstract: Related methods are provided for establishing a baseline value to represent an eyelid opening dimension for a person engaged in an activity, where the activity may be driving a vehicle, operating industrial equipment, or performing a monitoring or control function; and for operating a system for monitoring eyelid opening values with real time video data.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: August 1, 2023
    Inventors: Florin Nanu, Stefan Petrescu, Florin Oprea, Emanuela Haller
  • Patent number: 11689796
    Abstract: 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: Grant
    Filed: December 7, 2021
    Date of Patent: June 27, 2023
    Assignee: Adeia Imaging LLC
    Inventors: Catalina Neghina, Mihnea Gangea, Stefan Petrescu, Emilian David, Petronel Bigioi, Eric Zarakov, Eran Steinberg
  • Patent number: 11600013
    Abstract: Tracking units for facial features with advanced training for natural rendering of human faces in real-time are provided. An example device receives a video stream, and upon detecting a visual face, selects a 3D model from a comprehensive set of head orientation classes. The device determines modifications to the selected 3D model to describe the face, then projects a 2D model of tracking points of facial features based on the 3D model, and controls, actuates, or animates hardware based on the facial features tracking points. The device can switch among an example comprehensive set of 35 different head orientation classes for each video frame, based on suggestions computed from a previous video frame or from yaw and pitch angles of the visual head orientation. Each class of the comprehensive set is trained separately based on a respective collection of automatically marked images for that head orientation class.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: March 7, 2023
    Inventors: Mihai Ciuc, Stefan Petrescu, Emanuela Haller, Florin Oprea, Alexandru Nicolaescu, Florin Nanu, Iulian Palade
  • Patent number: 11470241
    Abstract: 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: Grant
    Filed: September 14, 2020
    Date of Patent: October 11, 2022
    Inventors: Catalina Neghina, Mihnea Gangea, Stefan Petrescu, Emilian David, Petronel Bigioi, Eric Zarakov, Eran Steinberg
  • Publication number: 20220262139
    Abstract: Related methods are provided for establishing a baseline value to represent an eyelid opening dimension for a person engaged in an activity, where the activity may be driving a vehicle, operating industrial equipment, or performing a monitoring or control function; and for operating a system for monitoring eyelid opening values with real time video data.
    Type: Application
    Filed: May 3, 2022
    Publication date: August 18, 2022
    Inventors: Florin Nanu, Stefan Petrescu, Florin Oprea, Emanuela Haller
  • Patent number: 11341756
    Abstract: Related methods are provided for establishing a baseline value to represent an eyelid opening dimension for a person engaged in an activity, where the activity may be driving a vehicle, operating industrial equipment, or performing a monitoring or control function; and for operating a system for monitoring eyelid opening values with real time video data.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: May 24, 2022
    Assignee: FotoNation Limited
    Inventors: Florin Nanu, Stefan Petrescu, Florin Oprea, Emanuela Haller
  • Publication number: 20220103749
    Abstract: 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: Application
    Filed: December 7, 2021
    Publication date: March 31, 2022
    Applicant: FotoNation Limited
    Inventors: Catalina Neghina, Mihnea Gangea, Stefan Petrescu, Emilian David, Petronel Bigioi, Eric Zarakov, Eran Steinberg
  • Publication number: 20210067686
    Abstract: 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: Application
    Filed: September 14, 2020
    Publication date: March 4, 2021
    Inventors: Catalina NEGHINA, Mihnea GANGEA, Stefan PETRESCU, Emilian DAVID, Petronel BIGIOI, Eric ZARAKOV, Eran STEINBERG
  • Publication number: 20200334853
    Abstract: Tracking units for facial features with advanced training for natural rendering of human faces in real-time are provided. An example device receives a video stream, and upon detecting a visual face, selects a 3D model from a comprehensive set of head orientation classes. The device determines modifications to the selected 3D model to describe the face, then projects a 2D model of tracking points of facial features based on the 3D model, and controls, actuates, or animates hardware based on the facial features tracking points. The device can switch among an example comprehensive set of 35 different head orientation classes for each video frame, based on suggestions computed from a previous video frame or from yaw and pitch angles of the visual head orientation. Each class of the comprehensive set is trained separately based on a respective collection of automatically marked images for that head orientation class.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 22, 2020
    Inventors: Mihai CIUC, Stefan PETRESCU, Emanuela HALLER, Florin OPREA, Alexandru NICOLAESCU, Florin NANU, Iulian PALADE
  • Patent number: 10778885
    Abstract: 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: Grant
    Filed: April 9, 2018
    Date of Patent: September 15, 2020
    Assignee: FotoNation Limited
    Inventors: Catalina Neghina, Mihnea Gangea, Stefan Petrescu, Emilian David, Petronel Bigioi, Eric Zarakov, Eran Steinberg
  • Patent number: 10740633
    Abstract: Method for monitoring eyelid opening values. In one embodiment video image data is acquired with a camera which data are representative of a person engaged in an activity, where the activity may be driving a vehicle, operating industrial equipment, or performing a monitoring or control function. When the person's head undergoes a change in yaw angle, such that eyelids of both eyes of the person are captured with the camera, but one eye is closer to the camera than the other eye, a weighting factor is applied, which factor varies as a function of the yaw angle such that a value representative of eyelid opening data based on both eyes is calculated.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: August 11, 2020
    Assignee: FotoNation Limited
    Inventors: Florin Nanu, Stefan Petrescu, Florin Oprea, Emanuela Haller
  • Patent number: 10706577
    Abstract: Tracking units for facial features with advanced training for natural rendering of human faces in real-time are provided. An example device receives a video stream, and upon detecting a visual face, selects a 3D model from a comprehensive set of head orientation classes. The device determines modifications to the selected 3D model to describe the face, then projects a 2D model of tracking points of facial features based on the 3D model, and controls, actuates, or animates hardware based on the facial features tracking points. The device can switch among an example comprehensive set of 35 different head orientation classes for each video frame, based on suggestions computed from a previous video frame or from yaw and pitch angles of the visual head orientation. Each class of the comprehensive set is trained separately based on a respective collection of automatically marked images for that head orientation class.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: July 7, 2020
    Assignee: FotoNation Limited
    Inventors: Mihai Ciuc, Stefan Petrescu, Emanuela Haller, Florin Oprea, Alexandru Nicolaescu, Florin Nanu, Iulian Palade
  • Patent number: 10455147
    Abstract: A method of processing an image comprises: acquiring an image of a scene including an object having a recognizable feature. A lens actuator setting providing a maximum sharpness for a region of the image including the object and a lens displacement corresponding to the lens actuator setting are determined. A distance to the object based on the lens displacement is calculated. A dimension of the feature as a function of the distance to the object, the imaged object size and a focal length of a lens assembly with which the image was acquired, is determined. The determined dimension of the feature is employed instead of an assumed dimension of the feature for subsequent processing of images of the scene including the object.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: October 22, 2019
    Assignee: FotoNation Limited
    Inventors: Alexandru Malaescu, Florin Nanu, Stefan Petrescu, Peter Corcoran, Petronel Bigioi
  • Publication number: 20190279393
    Abstract: Tracking units for facial features with advanced training for natural rendering of human faces in real-time are provided. An example device receives a video stream, and upon detecting a visual face, selects a 3D model from a comprehensive set of head orientation classes. The device determines modifications to the selected 3D model to describe the face, then projects a 2D model of tracking points of facial features based on the 3D model, and controls, actuates, or animates hardware based on the facial features tracking points. The device can switch among an example comprehensive set of 35 different head orientation classes for each video frame, based on suggestions computed from a previous video frame or from yaw and pitch angles of the visual head orientation. Each class of the comprehensive set is trained separately based on a respective collection of automatically marked images for that head orientation class.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 12, 2019
    Inventors: Mihai CIUC, Stefan PETRESCU, Emanuela HALLER, Florin OPREA, Alexandru NICOLAESCU, Florin NANU, Iulian PALADE
  • Publication number: 20190102637
    Abstract: Related methods are provided for establishing a baseline value to represent an eyelid opening dimension for a person engaged in an activity, where the activity may be driving a vehicle, operating industrial equipment, or performing a monitoring or control function; and for operating a system for monitoring eyelid opening values with real time video data.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 4, 2019
    Inventors: Florin NANU, Stefan PETRESCU, Florin OPREA, Emanuela HALLER
  • Publication number: 20190102638
    Abstract: Method for monitoring eyelid opening values. In one embodiment video image data is acquired with a camera which data are representative of a person engaged in an activity, where the activity may be driving a vehicle, operating industrial equipment, or performing a monitoring or control function. When the person's head undergoes a change in yaw angle, such that eyelids of both eyes of the person are captured with the camera, but one eye is closer to the camera than the other eye, a weighting factor is applied, which factor varies as a function of the yaw angle such that a value representative of eyelid opening data based on both eyes is calculated.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 4, 2019
    Inventors: Florin NANU, Stefan PETRESCU, Florin OPREA, Emanuela HALLER
  • Publication number: 20180295279
    Abstract: 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: Application
    Filed: April 9, 2018
    Publication date: October 11, 2018
    Inventors: Catalina NEGHINA, Mihnea GANGEA, Stefan PETRESCU, Emilian DAVID, Petronel BIGIOI, Erik ZARAKOV, Eran STEINBERG