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).

  • RED-EYE FILTER METHOD AND APPARATUS
    Publication number: 20110134287
    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: Application
    Filed: February 14, 2011
    Publication date: June 9, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi, Michael J. DeLuca
  • Foreground/background segmentation in digital images
    Patent number: 7957597
    Abstract: An analysis and classification tool compares at least a portion of a captured image and a reference image of nominally the same scene. One of the captured and reference images is taken with flash and the other is taken without flash. The tool provides a measure of the difference in illumination between the captured image and the reference image. The tool compares the measure with a threshold and segments a foreground region from a background region based on the measure.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: June 7, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • REAL-TIME FACE TRACKING IN A DIGITAL IMAGE ACQUISITION DEVICE
    Publication number: 20110129121
    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: Application
    Filed: January 3, 2011
    Publication date: June 2, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Peter Corcoran, Alexandru Drimbarean, Alexei Pososin, Petronel Bigioi, Eran Steinberg, Stefan Petrescu, Florin Nanu
  • Method and apparatus for detection and correction of flash-induced eye defects within digital images using preview or other reference images
    Patent number: 7953251
    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: November 16, 2010
    Date of Patent: May 31, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Eran Steinberg, Peter Corcoran, Yury Prilutsky, Petronel Bigioi, Adrian Zamfir, Florin Nanu, Alexandru Drimbarean
  • Method and apparatus for red-eye detection in an acquired digital image
    Patent number: 7953250
    Abstract: A method for red-eye detection in an acquired digital image comprises acquiring a first image and analyzing the first acquired image to provide a plurality of characteristics indicative of image quality. The process then determines if one or more corrective processes can be beneficially applied to the first acquired image according to the characteristics. Any such corrective processes are then applied to the first acquired image. Red-eye defects are then detected in a second acquired image using the corrected first acquired image. Defect detection can comprise applying a chain of one or more red-eye filters to the first acquired image. In this case, prior to the detecting step, it is determined if the red-eye filter chain can be adapted in accordance with the plurality of characteristics; and the red-eye filter is adapted accordingly.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: May 31, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Petronel Bigioi, Florin Nanu
  • Two stage detection for photographic eye artifacts
    Patent number: 7953252
    Abstract: A digital image acquisition device is for acquiring digital images including one or more preview images. A face detector analyzes the one or more preview images to ascertain information relating to candidate face regions therein. A speed-optimized filter produces a first set of candidate red-eye regions based on the candidate face region information provided by the face detector.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: May 31, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Florin Nanu, Adrian Capata, Eran Steinberg, Peter Corcoran, Petronel Bigioi, Alexei Pososin, Mihai Ciuc
  • METHOD AND APPARATUS FOR DETECTION AND CORRECTION OF FLASH-INDUCED EYE DEFECTS WITHIN DIGITAL IMAGES USING PREVIEW OR OTHER REFERENCE IMAGES
    Publication number: 20110122297
    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: Application
    Filed: November 16, 2010
    Publication date: May 26, 2011
    Inventors: Eran Steinberg, Peter Corcoran, Yury Prilutsky, Petronel Bigioi, Adrian Zamfir, Florin Nanu, Alexandru Drimbarean
  • Image Acquisition Method and Apparatus
    Publication number: 20110115928
    Abstract: An image acquisition sensor of a digital image acquisition apparatus is coupled to imaging optics for acquiring a sequence of images. Images acquired by the sensor are stored. A motion detector causes the sensor to cease capture of an image when the degree of movement in acquiring the image exceeds a threshold. A controller selectively transfers acquired images for storage. A motion extractor determines motion parameters of a selected, stored image. An image re-constructor corrects the selected image with associated motion parameters. A selected plurality of images nominally of the same scene are merged and corrected by the image re-constructor to produce a high quality image of the scene.
    Type: Application
    Filed: October 19, 2010
    Publication date: May 19, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Peter Corcoran, Eran Steinberg, Petronel Bigioi, Alexandru Drimbarean, Adrian Zamfir, Corneliu Florea
  • ENHANCED REAL-TIME FACE MODELS FROM STEREO IMAGING
    Publication number: 20110102553
    Abstract: A stereoscopic image of a face is generated. A depth map is created based on the stereoscopic image. A 3D face model of the face region is generated from the stereoscopic image and the depth map. The 3D face model is applied to process an image.
    Type: Application
    Filed: June 27, 2010
    Publication date: May 5, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Peter Corcoran, Petronel Bigioi, Mircea C. Ionita
  • Partial Face Detector Red-Eye Filter Method and Apparatus
    Publication number: 20110102643
    Abstract: A digital camera has an integral flash and stores and displays a digital image. Under certain conditions, a flash photograph taken with the camera may result in a red-eye phenomenon due to a reflection within an eye of a subject of the photograph. A digital apparatus has a red-eye filter which analyzes at least one partial face region identified within the digital image for the red-eye phenomenon and modifies the image to eliminate the red-eye phenomenon by changing the red area to black. The modification of the image is enabled when a photograph is taken under conditions indicative of the red-eye phenomenon. The modification is subject to anti-falsing analysis which further examines the area around the red-eye area for indicia of the eye of the subject. The detection and correction can be optimized for performance and quality by operating on subsample versions of the image when appropriate.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 5, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Florin Nanu, Eran Steinberg, Peter Corcoran, Alexei Pososin, Petronel Bigioi, Alexandru Drimbarean, Stefan Petrescu, Mihnea Gangea, Adrian Capata, Mihai Ciuc, Adrian Zamfir
  • Digital Image Processing Using Face Detection Information
    Publication number: 20110096187
    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: December 4, 2010
    Publication date: April 28, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • Two Stage Detection For Photographic Eye Artifacts
    Publication number: 20110090363
    Abstract: A digital image acquisition device is for acquiring digital images including one or more preview images. A face detector analyzes the one or more preview images to ascertain information relating to candidate face regions therein. A speed-optimized filter produces a first set of candidate red-eye regions based on the candidate face region information provided by the face detector.
    Type: Application
    Filed: November 22, 2010
    Publication date: April 21, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Florin Nanu, Adrian Capata, Eran Steinberg, Peter Corcoran, Petronel Bigioi, Alexei Pososin, Mihai Ciuc
  • RED-EYE FILTER METHOD AND APPARATUS
    Publication number: 20110080499
    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: Application
    Filed: June 14, 2010
    Publication date: April 7, 2011
    Applicant: Tessera Technologies Ireland Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi, Michael J. DeLuca
  • FACE RECOGNITION PERFORMANCE USING ADDITIONAL IMAGE FEATURES
    Publication number: 20110081052
    Abstract: A technique is provided for recognizing faces in an image stream using a digital image acquisition device. A first acquired image is received from an image stream. A first face region is detected within the first acquired image having a given size and a respective location within the first acquired image. First faceprint data uniquely identifying the first face region are extracted along with first peripheral region data around the first face region. The first faceprint and peripheral region data are stored, and the first peripheral region data are associated with the first face region. The first face region is tracked until a face lock is lost. A second face region is detected within a second acquired image from the image stream. Second peripheral region data around the second face region are extracted. The second face region is identified upon matching the first and second peripheral region data.
    Type: Application
    Filed: October 2, 2009
    Publication date: April 7, 2011
    Applicant: FOTONATION IRELAND LIMITED
    Inventors: Petronel Bigioi, Gabriel Costache, Alexandru Drimbarean, Peter Corcoran
  • Two stage detection for photographic eye artifacts
    Patent number: 7920723
    Abstract: A digital image acquisition device is for acquiring digital images including one or more preview images. A face detector analyzes the one or more preview images to ascertain information relating to candidate face regions therein. A speed-optimized filter produces a first set of candidate red-eye regions based on the candidate face region information provided by the face detector.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: April 5, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Florin Nanu, Adrian Capata, Eran Steinberg, Peter Corcoran, Petronel Bigioi, Alexei Pososin, Mihai Ciuc
  • Digital Image Processing Using Face Detection Information
    Publication number: 20110075895
    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: December 3, 2010
    Publication date: March 31, 2011
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • Digital Image Processing Using Face Detection Information
    Publication number: 20110075894
    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: December 3, 2010
    Publication date: March 31, 2011
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • Remote Control Apparatus for Consumer Electronic Appliances
    Publication number: 20110078348
    Abstract: An apparatus for the remote wireless control of a consumer electronic audio visual appliance such as a TV set, and/or for internet uploading, includes a remote control handset and a wireless receiver for connection to the appliance. The remote control unit is adapted to transmit audio and/or visual data (A/V data) and control codes to the receiver. The receiver is responsive to the A/V data and control codes to control the appliance to play and/or display the A/V data. The remote control unit includes a reader for a storage medium for A/V data, or a cable or wireless interface to an A/V acquisition device such as digital video or digital still camera or digital music player or recorder.
    Type: Application
    Filed: December 3, 2010
    Publication date: March 31, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Eran Steinberg, Sumat Mehra, Petronel Bigioi
  • Detecting Red Eye Filter and Apparatus Using Meta-Data
    Publication number: 20110074975
    Abstract: A method of filtering a red-eye phenomenon from an acquired digital image including a multiplicity of pixels indicative of color, the pixels forming various shapes of the image, includes analyzing meta-data information, determining one or more regions within the digital image suspected as including red eye artifact, and determining, based at least in part on the meta-data analysis, whether the regions are actual red eye artifact. The meta-data information may include information describing conditions under which the image was acquired, captured and/or digitized, acquisition device-specific information, and film information.
    Type: Application
    Filed: December 1, 2010
    Publication date: March 31, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Michael J. DeLuca, Yury Prilutsky, Eran Steinberg, Peter Corcoran, Petronel Bigioi, Alexei Pososin
  • Image processing method and apparatus
    Patent number: 7916971
    Abstract: An image processing technique includes acquiring a main image of a scene and determining one or more facial regions in the main image. The facial regions are analysed to determine if any of the facial regions includes a defect. A sequence of relatively low resolution images nominally of the same scene is also acquired. One or more sets of low resolution facial regions in the sequence of low resolution images are determined and analysed for defects. Defect free facial regions of a set are combined to provide a high quality defect free facial region. At least a portion of any defective facial regions of the main image are corrected with image information from a corresponding high quality defect free facial region.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: March 29, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Petronel Bigioi, Peter Corcoran, Eran Steinberg