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).

  • A METHOD AND APPARATUS FOR MOTION ESTIMATION
    Publication number: 20160035104
    Abstract: A method of estimating motion between a pair of image frames of a given scene comprises calculating respective integral images for each of the image frames and selecting at least one corresponding region of interest within each frame. For each region of interest, an integral image profile from each integral image is calculated, each profile comprising an array of elements, each element comprising a sum of pixel intensities from successive swaths of the region of interest for the frame. Integral image profiles are correlated to determine a relative displacement of the region of interest between the pair of frames. Each region of interest is divided into a plurality of further regions of interest before repeating until a required hierarchy of estimated motion for successively divided regions of interest is provided.
    Type: Application
    Filed: March 14, 2014
    Publication date: February 4, 2016
    Inventors: PETRONEL BIGIOI, PETER CORCORAN, PIOTR STEC
  • Rearview imaging systems for vehicle
    Patent number: 9242602
    Abstract: A rearview imaging system for a vehicle includes at least one video camera mounted at the rear of the vehicle for providing a wide angle horizontal field of view (FoV) rearwardly of the vehicle, and a display device in the vehicle at a position viewable by the driver. A video processor subdivides the camera FoV into three horizontally disposed sub-FOVs and displaying said sub-FoVs on visually separated side-by-side regions of the display device screen. The horizontal position and/or extent of at least one sub-FoV is variable as a function of the motion of the vehicle.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: January 26, 2016
    Assignee: Fotonation Limited
    Inventors: Peter Corcoran, Petronel Bigioi, Piotr Stec
  • Digital Image Processing Using Face Detection and Skin Tone Information
    Publication number: 20160014333
    Abstract: A technique for processing a digital image uses face detection to achieve one or more desired image processing parameters. A group of pixels is identified that corresponds to a face image within the digital image. A skin tone is detected for the face image by determining one or more default color or tonal values, or combinations thereof, for the group of pixels. Values of one or more parameters are adjusted for the group of pixels that correspond to the face image based on the detected skin tone.
    Type: Application
    Filed: December 8, 2014
    Publication date: January 14, 2016
    Inventors: Peter Corcoran, Igor Barcovschi, Eran Steinberg, Yury Prilutsky, Petronel Bigioi
  • Face searching and detection in a digital image acquisition device
    Patent number: 9224034
    Abstract: A method of detecting a face in an image includes performing face detection within a first window of the image at a first location. A confidence level is obtained from the face detection indicating a probability of the image including a face at or in the vicinity of the first location. Face detection is then performed within a second window at a second location, wherein the second location is determined based on the confidence level.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: December 29, 2015
    Assignee: FotoNation Limited
    Inventors: Eran Steinberg, Petronel Bigioi, Peter Corcoran, Mihnea Gangea, Stefan Mirel Petrescu, Andrei Vasiliu, Gabriel Costache, Alexandru Drimbarean
  • Portrait Image Synthesis from Multiple Images Captured on a Handheld Device
    Publication number: 20150365588
    Abstract: A hand-held digital image capture device (digital camera) has a user-selectable mode in which upon engaging the mode the device detects a face in the field of view of the device and generates a face delimiter on a camera display screen, the delimiter surrounding the initial position of the image of a the face on the screen. The device is arranged to indicate thereafter to the user if the device departs from the movement along a predetermined concave path P with the optical axis of the device pointing towards the face, such indication being made by movement of the image of the face relative to the delimiter. The camera captures and stores a plurality of images at successive positions along the concave path.
    Type: Application
    Filed: August 24, 2015
    Publication date: December 17, 2015
    Inventors: Petronel Bigioi, Peter Corcoran, Piotr Stec
  • Modification of post-viewing parameters for digital images using image region or feature information
    Patent number: 9129381
    Abstract: A method of generating one or more new digital images using an original digitally-acquired image including a selected image feature includes identifying within a digital image acquisition device one or more groups of pixels that correspond to the selected image feature based on information from one or more preview images. A portion of the original image is selected that includes the one or more groups of pixels. The technique includes automatically generating values of pixels of one or more new images based on the selected portion in a manner which includes the selected image feature within the one or more new images.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: September 8, 2015
    Assignee: FotoNation Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • Foreground / background separation in digital images
    Patent number: 9117282
    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: January 28, 2013
    Date of Patent: August 25, 2015
    Assignee: FotoNation Limited
    Inventors: Eran Steinberg, Peter Corcoran, Yury Prilutsky, Petronel Bigioi, Alexei Pososin, Mihai Ciuc, Adrian Zamfir, Adrian Capata
  • Portrait image synthesis from multiple images captured on a handheld device
    Patent number: 9118833
    Abstract: A hand-held digital image capture device (digital camera) has a user-selectable mode in which upon engaging the mode the device detects a face in the field of view of the device and generates a face delimiter on a camera display screen, the delimiter surrounding the initial position of the image of a the face on the screen. The device is arranged to indicate thereafter to the user if the device departs from movement along a predetermined concave path P with the optical axis of the device pointing towards the face, such indication being made by movement of the image of the face relative to the delimiter. The camera captures and stores a plurality of images at successive positions along the concave path.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: August 25, 2015
    Assignee: FotoNation Limited
    Inventors: Petronel Bigioi, Peter Corcoran, Piotr Stec
  • Image Processing Method and Apparatus
    Publication number: 20150235087
    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: Application
    Filed: May 4, 2015
    Publication date: August 20, 2015
    Inventors: Petronel Bigioi, Peter Corcoran, Eran Steinberg
  • FACE OR OTHER OBJECT DETECTION INCLUDING TEMPLATE MATCHING
    Publication number: 20150206030
    Abstract: A template matching module is configured to program a processor to apply multiple differently-tuned object detection classifier sets in parallel to a digital image to determine one or more of an object type, configuration, orientation, pose or illumination condition, and to dynamically switch between object detection templates to match a determined object type, configuration, orientation, pose, blur, exposure and/or directional illumination condition.
    Type: Application
    Filed: March 30, 2015
    Publication date: July 23, 2015
    Inventors: BOGDAN SULTANA, STEFAN PETRESCU, RADU NICOLAU, VLAD IONUT URSACHI, PETRONEL BIGIOI, CORNELIU ZAHARIA, PETER CORCORAN, SZABOLCS FULOP, MIHNEA GANGEA
  • FACE SEARCHING AND DETECTION IN A DIGITAL IMAGE ACQUISITION DEVICE
    Publication number: 20150169941
    Abstract: A method of detecting a face in an image includes performing face detection within a first window of the image at a first location. A confidence level is obtained from the face detection indicating a probability of the image including a face at or in the vicinity of the first location. Face detection is then performed within a second window at a second location, wherein the second location is determined based on the confidence level.
    Type: Application
    Filed: December 22, 2014
    Publication date: June 18, 2015
    Inventors: ERAN STEINBERG, PETRONEL BIGIOI, PETER CORCORAN, MIHNEA GANGEA, STEFAN MIREL PETRESCU, ANDREI VASILIU, GABRIEL COSTACHE, ALEXANDRU DRIMBAREAN
  • Real-time video frame pre-processing hardware
    Patent number: 9053681
    Abstract: A dynamically reconfigurable heterogeneous systolic array is configured to process a first image frame, and to generate image processing primatives from the image frame, and to store the primatives and the corresponding image frame in a memory store. A characteristic of the image frame is determined. Based on the characteristic, the array is reconfigured to process a following image frame.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: June 9, 2015
    Assignee: FotoNation Limited
    Inventors: Petronel Bigioi, Corneliu Zaharia, Peter Corcoran
  • Image processing method and apparatus
    Patent number: 9025837
    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 analyzed 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 analyzed 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: July 21, 2013
    Date of Patent: May 5, 2015
    Assignee: Fotonation Limited
    Inventors: Petronel Bigioi, Peter Corcoran, Eran Steinberg
  • Detecting red eye filter and apparatus using meta-data
    Patent number: 9025054
    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: Grant
    Filed: February 19, 2013
    Date of Patent: May 5, 2015
    Assignee: FotoNation Limited
    Inventors: Michael J. DeLuca, Yury Prilutsky, Eran Steinberg, Peter Corcoran, Petronel Bigioi, Alexei Pososin
  • Method of improving orientation and color balance of digital images using face detection information
    Patent number: 9008374
    Abstract: A method of generating one or more new spatial and chromatic variation digital images uses an original digitally-acquired image which including a face or portions of a face. A group of pixels that correspond to a face within the original digitally-acquired image is identified. A portion of the original image is selected to include the group of pixels. Values of pixels of one or more new images based on the selected portion are automatically generated, or an option to generate them is provided, in a manner which always includes the face within the one or more new images. Such method may be implemented to automatically establish the correct orientation and color balance of an image. 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: July 29, 2013
    Date of Patent: April 14, 2015
    Assignee: FotoNation Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • FACE TRACKING FOR CONTROLLING IMAGING PARAMETERS
    Publication number: 20150092078
    Abstract: A method of tracking faces in an image stream with a digital image acquisition device includes receiving images from an image stream including faces, calculating corresponding integral images, and applying different subsets of face detection rectangles to the integral images to provide sets of candidate regions. The different subsets include candidate face regions of different sizes and/or locations within the images. The different candidate face regions from different images of the image stream are each tracked.
    Type: Application
    Filed: December 5, 2014
    Publication date: April 2, 2015
    Inventors: PETER CORCORAN, ERAN STEINBERG, PETRONEL BIGIOI
  • METHOD AND APPARATUS FOR VIEWING IMAGES
    Publication number: 20150093038
    Abstract: A computer-implemented method for viewing images on an interactive computing device comprises displaying an image from a stack comprising a display image and at least one compressed sub-image of nominally the same scene, each of the sub-images of the stack having been acquired at respective focal distances. Responsive to a user selecting a portion of the displayed image, the selected portion is mapped to a corresponding mapped portion of a sub-image within the stack according to the difference in focal distances between the displayed image and the sub-image. At least one row of compressed image blocks of the at least one sub-image extending across the mapped portion; and a reference value for a point in the compressed image stream of the sub-image preceding the row of compressed image blocks is determined.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 2, 2015
    Inventors: VALENTIN MOCANU, PETRONEL BIGIOI, PETER CORCORAN, CHRISTOPHER DAINTY, FERENC PAPAI
  • Face or other object detection including template matching
    Patent number: 8995715
    Abstract: A template matching module is configured to program a processor to apply multiple differently-tuned object detection classifier sets in parallel to a digital image to determine one or more of an object type, configuration, orientation, pose or illumination condition, and to dynamically switch between object detection templates to match a determined object type, configuration, orientation, pose, blur, exposure and/or directional illumination condition.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: March 31, 2015
    Assignee: FotoNation Limited
    Inventors: Bogdan Sultana, Stefan Petrescu, Radu Nicolau, Vlad Ionut Ursachi, Petronel Bigioi, Corneliu Zaharia, Peter Corcoran, Szabolcs Fulop, Mihnea Gangea
  • Face Recognition Performance Using Additional Image Features
    Publication number: 20150086076
    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: December 5, 2014
    Publication date: March 26, 2015
    Inventors: Petronel Bigioi, Gabriel Costache, Alexandru Drimbarean, Peter Corcoran
  • Method of improving orientation and color balance of digital images using face detection information
    Patent number: 8989443
    Abstract: A method of generating one or more new spatial and chromatic variation digital images uses an original digitally-acquired image which including a face or portions of a face. A group of pixels that correspond to a face within the original digitally-acquired image is identified. A portion of the original image is selected to include the group of pixels. Values of pixels of one or more new images based on the selected portion are automatically generated, or an option to generate them is provided, in a manner which always includes the face within the one or more new images. Such method may be implemented to automatically establish the correct orientation and color balance of an image. 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: July 29, 2013
    Date of Patent: March 24, 2015
    Assignee: FotoNation Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi