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).

  • Face recognition training method and apparatus
    Patent number: 8363951
    Abstract: A device is trained for face recognition. A first acquired digital image of a scene includes a face. Face image data is extracted and stored in a face image library along with an unique identifier. A second acquired digital image may or may not include the face of the same person as the face in the first acquired digital image. Face recognition is applied to extracted face data of the second digital image, and the face of the first digital image is displayed as a match to the face of the second digital image when the first and second images are determined to match or the second digital image or a face therein is identified with biometric data stored along with the first digital image when the faces in the first and second images are determined to match.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: January 29, 2013
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Petronel Bigioi, Eran Steinberg, Peter Corcoran
  • Foreground / background separation in digital images
    Patent number: 8363908
    Abstract: A method for providing improved foreground/background separation in a digital image of a scene is disclosed. The method comprises providing a first map comprising one or more regions provisionally defined as one of foreground or background within the digital image; and providing a subject profile corresponding to a region of interest of the digital image. The provisionally defined regions are compared with the subject profile to determine if any of the regions intersect with the profile region. The definition of one or more of the regions in the map is changed based on the comparison.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: January 29, 2013
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Eran Steinberg, Peter Corcoran, Yury Prilutsky, Petronel Bigioi, Alexei Pososin, Mihai Ciuc, Adrian Zamfir, Adrian Capata
  • Face recognition training method and apparatus
    Patent number: 8363952
    Abstract: A device is trained for face recognition. A first acquired digital image of a scene includes a face. Face image data is extracted and stored in a face image library along with an unique identifier. A second acquired digital image may or may not include the face of the same person as the face in the first acquired digital image. Face recognition is applied to extracted face data of the second digital image, and the face of the first digital image is displayed as a match to the face of the second digital image when the first and second images are determined to match or the second digital image or a face therein is identified with biometric data stored along with the first digital image when the faces in the first and second images are determined to match.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: January 29, 2013
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Petronel Bigioi, Eran Steinberg, Peter Corcoran
  • Foreground/background separation in digital images
    Patent number: 8358841
    Abstract: A method for providing improved foreground/background separation in a digital image of a scene is disclosed. The method comprises providing a first map comprising one or more regions provisionally defined as one of foreground or background within the digital image; and providing a subject profile corresponding to a region of interest of the digital image. The provisionally defined regions are compared with the subject profile to determine if any of the regions intersect with the profile region. The definition of one or more of the regions in the map is changed based on the comparison.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: January 22, 2013
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Eran Steinberg, Peter Corcoran, Yury Prilutsky, Petronel Bigioi, Alexei Pososin, Mihai Ciuc, Adrian Zamfir, Adrian Capata
  • Digital Camera with an Image Processor
    Publication number: 20130010138
    Abstract: A method operable in a digital image acquisition system having no photographic film is provided. The method comprises receiving a relatively low resolution image of a scene from an image stream, wherein the scene potentially includes one or more faces. At least one high quality face classifier is applied to the image to identify relatively large and medium sized face regions and at least one relaxed face classifier is applied to the image to identify relatively small sized face regions. A relatively high resolution image of nominally the same scene is received and at least one high quality face classifier is applied to the identified small sized face regions in the higher resolution version of said image.
    Type: Application
    Filed: April 9, 2012
    Publication date: January 10, 2013
    Inventors: Petronel Bigioi, Alexei Pososin, Mihnea Gangea, Stefan Petrescu, Peter Corcoran, Alexandru Drimbarean, Adrian Zamfir, Corneliu Florea
  • Digital image processing using face detection information
    Patent number: 8331715
    Abstract: A method of processing a digital image using face detection within the image achieves one or more desired image processing parameters. A group of pixels is identified that correspond to an image of a face within the digital image. Default values are determined of one or more parameters of at least some portion of the digital image. Values are adjusted of the one or more parameters within the digitally-detected image based upon an analysis of the digital image including the image of the face and the default values.
    Type: Grant
    Filed: September 25, 2011
    Date of Patent: December 11, 2012
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • Method of gathering visual meta data using a reference image
    Patent number: 8330831
    Abstract: A digital image processing technique gathers visual meta data using a reference image. A main image and one or more reference images are captured on a hand-held or otherwise portable or spatial or temporal performance-based image capture device. The reference images are analyzed based on predefined criteria in comparison to the main image. Based on said analyzing, supplemental meta data are created and added to the main image at a digital data storage location.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: December 11, 2012
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Alexei Pososin, Petronel Bigioi, Adrian Zamfir, Alexandru Drimbarean, Peter Corcoran
  • Method and apparatus for red-eye detection using preview or other reference images
    Patent number: 8320641
    Abstract: A method for red-eye detection in an acquired digital image acquiring one or more preview or other reference images without a flash. Any red regions that exist within the one or more reference images are determined. A main image is acquired with a flash of approximately a same scene as the one or more reference images. The main image is analyzed to determine any candidate red eye defect regions that exist within the main image. Any red regions determined to exist within the one or more reference images are compared with any candidate red eye defect regions determined to exist within the main image. Any candidate red eye defect regions within the main image corresponding to red regions determined also to exist within the one or more reference images are removed as candidate red eye defect regions.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: November 27, 2012
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Eran Steinberg, Peter Corcoran, Yury Prilutsky, Petronel Bigioi, Adrian Zamfir, Florin Nanu, Alexandru Drimbarean
  • Method and apparatus for selective disqualification of digital images
    Patent number: 8285001
    Abstract: An unsatisfactory scene is disqualified as an image acquisition control for a camera. An image is acquired. One or more eye regions are determined. The eye regions are analyzed to determine whether they are blinking, and if so, then the scene is disqualified as a candidate for a processed, permanent image while the eye is completing the blinking.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: October 9, 2012
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Eran Steinberg, Peter Corcoran, Petronel Bigioi
  • FACE AND OTHER OBJECT TRACKING IN OFF-CENTER PERIPHERAL REGIONS FOR NONLINEAR LENS GEOMETRIES
    Publication number: 20120249725
    Abstract: A technique of enhancing a scene containing one or more off-center peripheral regions within an initial distorted image captured with a large field of view includes determining and extracting an off-center region of interest (hereinafter “ROI”) within the image. Geometric correction is applied to reconstruct the off-center ROI into a rectangular or otherwise undistorted or less distorted frame of reference as a reconstructed ROI.
    Type: Application
    Filed: April 2, 2011
    Publication date: October 4, 2012
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Peter Corcoran, Petronel Bigioi, Piotr Stec
  • SUPERRESOLUTION ENHANCMENT OF PERIPHERAL REGIONS IN NONLINEAR LENS GEOMETRIES
    Publication number: 20120249727
    Abstract: A technique of enhancing a scene containing one or more off-center peripheral regions within an initial distorted image captured with a large field of view includes determining and extracting an off-center region of interest (hereinafter “ROI”) within the image. Geometric correction is applied to reconstruct the off-center ROI into a rectangular or otherwise undistorted or less distorted frame of reference as a reconstructed ROI. A quality of reconstructed pixels is determined within the reconstructed ROI. One or more additional initially distorted images is/are acquired, and matching additional ROIs are extracted and reconstructed to combine with reduced quality pixels of the first reconstructed ROI using a super-resolution technique to provide one or more enhanced ROIs.
    Type: Application
    Filed: April 11, 2011
    Publication date: October 4, 2012
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Peter Corcoran, Petronel Bigioi, Piotr Stec
  • SCENE ENHANCEMENTS IN OFF-CENTER PERIPHERAL REGIONS FOR NONLINEAR LENS GEOMETRIES
    Publication number: 20120250937
    Abstract: A technique of enhancing a scene containing one or more off-center peripheral regions within an initial distorted image captured with a large field of view includes determining and extracting an off-center region of interest (hereinafter “ROI”) within the image. Geometric correction is applied to reconstruct the off-center ROI into a rectangular frame of reference as a reconstructed ROI. A quality of reconstructed pixels is determined within the reconstructed ROI. Image analysis is selectively applied to the reconstructed ROI based on the quality of the reconstructed pixels.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Peter Corcoran, Petronel Bigioi, Piotr Stec
  • SCENE ENHANCEMENTS IN OFF-CENTER PERIPHERAL REGIONS FOR NONLINEAR LENS GEOMETRIES
    Publication number: 20120249841
    Abstract: A technique of enhancing a scene containing one or more off-center peripheral regions within an initial distorted image captured with a large field of view includes determining and extracting an off-center region of interest (hereinafter “ROI”) within the image. Geometric correction is applied to reconstruct the off-center ROI into a rectangular or otherwise undistorted or less distorted frame of reference as a reconstructed ROI. A quality of reconstructed pixels is determined within the constructed ROI. Image analysis is selectively applied to the reconstructed ROI based on the quality of the reconstructed pixels.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Peter Corcoran, Petronel Bigioi, Piotr Stec
  • FACE AND OTHER OBJECT DETECTION AND TRACKING IN OFF-CENTER PERIPHERAL REGIONS FOR NONLINEAR LENS GEOMETRIES
    Publication number: 20120249726
    Abstract: A technique of enhancing a scene containing one or more off-center peripheral regions within an initial distorted image captured with a large field of view includes determining and extracting an off-center region of interest (hereinafter “ROI”) within the image. Geometric correction is applied to reconstruct the off-center ROI into a rectangular or otherwise undistorted or less distorted frame of reference as a reconstructed ROI.
    Type: Application
    Filed: April 2, 2011
    Publication date: October 4, 2012
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Peter Corcoran, Petronel Bigioi, Piotr Stec
  • Red-eye filter method and apparatus
    Patent number: 8279301
    Abstract: A digital image acquisition system having no photographic film, such as a digital camera, has a flash unit for providing illumination during image capture and a red-eye filter for detecting a region within a captured image indicative of a red-eye phenomenon, the detection being based upon a comparison of the captured image and a reference image of nominally the same scene taken without flash. In the embodiment the reference image is a preview image of lower pixel resolution than the captured image, the filter matching the pixel resolutions of the captured and reference images by up-sampling the preview image and/or sub-sampling the captured image. The filter also aligns at least portions of the captured image and reference image prior to comparison to allow for, e.g. movement in the subject.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: October 2, 2012
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi, Michael J. DeLuca
  • Real-time face tracking in a digital image acquisition device
    Patent number: 8270674
    Abstract: An image processing apparatus for tracking faces in an image stream iteratively receives an acquired image from the image stream potentially including one or more face regions. The acquired image is sub-sampled at a specified resolution to provide a sub-sampled image. An integral image is then calculated for a least a portion of the sub-sampled image. Fixed size face detection is applied to at least a portion of the integral image to provide a set of candidate face regions. Responsive to the set of candidate face regions produced and any previously detected candidate face regions, the resolution is adjusted for sub-sampling a subsequent acquired image.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: September 18, 2012
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Peter Corcoran, Eran Steinberg, Stefan Petrescu, Alexandru Drimbarean, Florin Nanu, Alexei Pososin, Petronel Bigioi
  • Digital Image Processing Using Face Detection Information
    Publication number: 20120229694
    Abstract: A method of processing a digital image using face detection within the image achieves one or more desired image processing parameters. A group of pixels is identified that correspond to an image of a face within the digital image. Default values are determined of one or more parameters of at least some portion of the digital image. Values are adjusted of the one or more parameters within the digitally-detected image based upon an analysis of the digital image including the image of the face and the default values.
    Type: Application
    Filed: September 25, 2011
    Publication date: September 13, 2012
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • Digital image acquisition control and correction method and apparatus
    Patent number: 8265348
    Abstract: An unsatisfactory scene is disqualified as an image acquisition control for a camera. An image is acquired. One or more mouth regions are determined. The mouth regions are analyzed to determined whether they are frowning, and if so, then the scene is disqualified as a candidate for a processed, permanent image while the mouth is completing the frowning.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: September 11, 2012
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Eran Steinberg, Peter Corcoran, Petronel Bigioi
  • Analyzing partial face regions for red-eye detection in acquired digital images
    Patent number: 8265388
    Abstract: A method for red-eye detection in an acquired digital image includes acquiring a first image, and analyzing one or more partial face regions within the first image. One or more characteristics of the first image are determined. One or more corrective processes are identified including red eye correction that can be beneficially applied to the first image according to the one or more characteristics. The one or more corrective processes are applied to the first image.
    Type: Grant
    Filed: September 25, 2011
    Date of Patent: September 11, 2012
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Florin Nanu, Eran Steinberg, Peter Corcoran, Alexei Pososin, Petronel Bigioi, Alexandru Drimbarean, Stefan Petrescu, Mihnea Gangea, Adrian Capata, Mihai Ciuc, Adrian Zamfir
  • Detecting orientation of digital images using face detection information
    Patent number: 8265399
    Abstract: A method of automatically establishing the correct orientation of an image using facial information. This method is based on the exploitation of the inherent property of image recognition algorithms in general and face detection in particular, where the recognition is based on criteria that is highly orientation sensitive. By applying a detection algorithm to images in various orientations, or alternatively by rotating the classifiers, and comparing the number of successful faces that are detected in each orientation, one may conclude as to the most likely correct orientation. Such method can be implemented as an automated method or a semi automatic method to guide users in viewing, capturing or printing of images.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: September 11, 2012
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi, Leo Blonk, Mihnea Gângea, Constantin Vertran