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).

  • Two Stage Detection For Photographic Eye Artifacts
    Publication number: 20110228134
    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: May 30, 2011
    Publication date: September 22, 2011
    Applicant: 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 Multiple Image Defects Within Digital Images Using Preview or Other Reference Images
    Publication number: 20110221936
    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: May 23, 2011
    Publication date: September 15, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Eran Steinberg, Peter Corcoran, Yury Prilutsky, Petronel Bigioi, Adrian Zamfir, Florin Nanu, Alexandru Drimbarean
  • Object Detection and Rendering for Wide Field of View (WFOV) Image Acquisition Systems
    Publication number: 20110216156
    Abstract: An image acquisition device having a wide field of view includes a lens and image sensor configured to capture an original wide field of view (WFoV) image with a field of view of more than 90°. The device has an object detection engine that includes one or more cascades of object classifiers, e.g., face classifiers. A WFoV correction engine may apply rectilinear and/or cylindrical projections to pixels of the WFoV image, and/or non-linear, rectilinear and/or cylindrical lens elements or lens portions serve to prevent and/or correct distortion within the original WFoV image. One or more objects located within the original and/or distortion-corrected WFoV image is/are detectable by the object detection engine upon application of the one or more cascades of object classifiers.
    Type: Application
    Filed: December 2, 2010
    Publication date: September 8, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Petronel Bigioi, Alexandru Drimbarean, Mihnea Gangea, Piotr Stec, Peter Corcoran
  • Object Detection and Rendering for Wide Field of View (WFOV) Image Acquisition Systems
    Publication number: 20110216157
    Abstract: An image acquisition device having a wide field of view includes a lens and image sensor configured to capture an original wide field of view (WFoV) image with a field of view of more than 90°. The device has an object detection engine that includes one or more cascades of object classifiers, e.g., face classifiers. A WFoV correction engine may apply rectilinear and/or cylindrical projections to pixels of the WFoV image, and/or non-linear, rectilinear and/or cylindrical lens elements or lens portions serve to prevent and/or correct distortion within the original WFoV image. One or more objects located within the original and/or distortion-corrected WFoV image is/are detectable by the object detection engine upon application of the one or more cascades of object classifiers.
    Type: Application
    Filed: December 2, 2010
    Publication date: September 8, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Petronel Bigioi, Alexandru Drimbarean, Mihnea Gangea, Piotr Stec, Peter Corcoran
  • Object Detection and Rendering for Wide Field of View (WFOV) Image Acquisition Systems
    Publication number: 20110216158
    Abstract: An image acquisition device having a wide field of view includes a lens and image sensor configured to capture an original wide field of view (WFoV) image with a field of view of more than 90°. The device has an object detection engine that includes one or more cascades of object classifiers, e.g., face classifiers. A WFoV correction engine may apply rectilinear and/or cylindrical projections to pixels of the WFoV image, and/or non-linear, rectilinear and/or cylindrical lens elements or lens portions serve to prevent and/or correct distortion within the original WFoV image. One or more objects located within the original and/or distortion-corrected WFoV image is/are detectable by the object detection engine upon application of the one or more cascades of object classifiers.
    Type: Application
    Filed: December 2, 2010
    Publication date: September 8, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Petronel Bigioi, Alexandru Drimbarean, Mihnea Gangea, Piotr Stec, Peter Corcoran
  • Two Stage Detection For Photographic Eye Artifacts
    Publication number: 20110211095
    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: May 9, 2011
    Publication date: September 1, 2011
    Applicant: Tessera Technologies Ireland Limited
    Inventors: Florin Nanu, Adrian Capata, Eran Steinberg, Peter Corcoran, Petronel Bigioi, Alexei Pososin, Mihai Ciuc
  • Detection and removal of blemishes in digital images utilizing original images of defocused scenes
    Patent number: 8009208
    Abstract: A method automatically corrects dust artifact within image acquired by a system including a digital acquisition device including a lens assembly and a translucent lens cap. Multiple original digital images are acquired with the digital acquisition device. Probabilities that certain pixels correspond to dust artifact regions within the images are determined based at least in part on a comparison of suspected dust artifact regions within two or more of the images. Probable dust artifact regions are associated with extracted parameter values relating to the lens assembly when the images were acquired, A statistical dust map is formed including mapped dust regions based on the determining and associating. Pixels corresponding to correlated dust artifact regions are corrected within further digitally-acquired images based on the associated statistical dust map.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: August 30, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Eran Steinberg, Petronel Bigioi, Adrian Zamfir
  • TONE MAPPING FOR LOW-LIGHT VIDEO FRAME ENHANCEMENT
    Publication number: 20110205381
    Abstract: A technique is provided for generating sharp, well-exposed, color images from low-light images. A series of under-exposed images is acquired. A mean image is computed and a sum image is generated each based on the series of under-exposed images. Chrominance variables of pixels of the mean image are mapped to chrominance variables of pixels of the sum image. Chrominance values of pixels within the series of under-exposed images are replaced with chrominance values of the sum image. A set of sharp, well-exposed, color images is generated based on the series of under-exposed images with replaced chrominance values.
    Type: Application
    Filed: November 8, 2010
    Publication date: August 25, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Ruxandra Vranceanu, Alexandru Drimbarean, Adrian Zamfir, Felix Albu, Vlad Poenaru, Corneliu Florea, Petronel Bigioi, Eran Steinberg, Peter Corcoran
  • Digital image acquisition control and correction method and apparatus
    Patent number: 8005268
    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: August 5, 2010
    Date of Patent: August 23, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Eran Steinberg, Peter Corcoran, Petronel Bigioi
  • Digital image processing using face detection information
    Patent number: 8005265
    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 8, 2008
    Date of Patent: August 23, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • Method and apparatus for selective disqualification of digital images
    Patent number: 7995795
    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: August 3, 2010
    Date of Patent: August 9, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Eran Steinberg, Peter Corcoran, Petronel Bigioi
  • Method of improving orientation and color balance of digital images using face detection information
    Patent number: 7986811
    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: December 14, 2009
    Date of Patent: July 26, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • Red-eye filter method and apparatus
    Patent number: 7973828
    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 17, 2010
    Date of Patent: July 5, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi, Michael J DeLuca
  • Foreground/Background Segmentation in Digital Images with Differential Exposure Calculations
    Publication number: 20110157408
    Abstract: A digital segmentation method and apparatus determines foreground and/or background within at least one portion of a captured image. The determining includes comparing a captured image to a pre-captured or post captured reference image of nominally the same scene. One of the images is taken with flash and the other without. The system can be implemented as part of a digital camera acquisition chain having effective computation complexity.
    Type: Application
    Filed: March 4, 2011
    Publication date: June 30, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Eran Steinberg, Yury Prilutsky, Peter Corcoran, Petronel Bigioi
  • Two stage detection for photographic eye artifacts
    Patent number: 7970184
    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: June 28, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Florin Nanu, Adrian Capata, Eran Steinberg, Peter Corcoran, Petronel Bigioi, Alexei Pososin, Mihai Ciuc
  • Two stage detection for photographic eye artifacts
    Patent number: 7970182
    Abstract: The detection of red-eye defects is enhanced in digital images for embedded image acquisition and processing systems. A two-stage redeye filtering system includes a speed optimized filter that performs initial segmentation of candidate redeye regions and optionally applies a speed-optimized set of falsing/verification filters to determine a first set of confirmed redeye regions for correction. Some of the candidate regions which are rejected during the first stage are recorded and re-analyzed during a second stage by an alternative set of analysis-optimized filters to determine a second set of confirmed redeye regions.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: June 28, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Yury Prilutsky, Eran Steinberg, Peter Corcoran, Alexei Pososin, Petronel Bigioi, Mihai Ciuc
  • Two stage detection for photographic eye artifacts
    Patent number: 7970183
    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: June 28, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Florin Nanu, Adrian Capata, Eran Steinberg, Peter Corcoran, Petronel Bigioi, Alexei Pososin, Mihai Ciuc
  • STEREOSCOPIC (3D) PANORAMA CREATION ON HANDHELD DEVICE
    Publication number: 20110141227
    Abstract: A technique of generating a stereoscopic panorama image includes panning a portable camera device, and acquiring multiple image frames. Multiple at least partially overlapping image frames are acquired of portions of the scene. The method involves registering the image frames, including determining displacements of the imaging device between acquisitions of image frames. Multiple panorama images are generated including joining image frames of the scene according to spatial relationships and determining stereoscopic counterpart relationships between the multiple panorama images. The multiple panorama images are processed based on the stereoscopic counterpart relationships to form a stereoscopic panorama image.
    Type: Application
    Filed: September 9, 2010
    Publication date: June 16, 2011
    Inventors: Petronel Bigioi, George Susanu, Igor Barcovschi, Piotr Stec, Larry Murray, Alexandru Drimbarean, Peter Corcoran
  • Method for establishing a paired connection between media devices
    Patent number: 7962629
    Abstract: A method for establishing a paired connection between first and second media devices across a network includes transmitting a first information message across the network including an identifier that includes a request to pair the first and second media devices. When a second information message is received from the second media device within a first predetermined time period, the first device retrieves an identifier of the second device and transmits a confirmation message across the network including the device identifiers. A paired connection between the media devices is completed after a corresponding confirmation message from the second device is received within a second predetermined time period.
    Type: Grant
    Filed: September 6, 2010
    Date of Patent: June 14, 2011
    Assignee: Tessera Technologies Ireland Limited
    Inventors: Petronel Bigioi, Peter Corcoran, Eran Steinberg
  • Detecting Red Eye Filter and Apparatus Using Meta-Data
    Publication number: 20110134271
    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: June 9, 2011
    Applicant: TESSERA TECHNOLOGIES IRELAND LIMITED
    Inventors: Michael J. DeLuca, Yury Prilutsky, Eran Steinberg, Peter Corcoran, Petronel Bigioi, Alexei Pososin