Patents Assigned to FotoNation
  • Publication number: 20190205691
    Abstract: A method for producing a histogram of oriented gradients (HOG) for at least a portion of an image comprises dividing the image portion into cells, each cell comprising a plurality of image pixels. Then, for each image pixel of a cell, obtaining a horizontal gradient component, gx, and a vertical gradient component, gy, based on differences in pixel values along at least a row of the image and a column of the image respectively including the pixel; and allocating a gradient to one of a plurality of sectors, where n is a sector index, each sector extending through a range of orientation angles and at least some of the sectors being divided from adjacent sectors according to the inequalities: b*16<a*(n+1) where 0?n?5, b=gy and a=gx; and b*16<a*(13?n) where 7?n?12, a=gx+gy and b=gx?gy. At least one sector is associated with a bin; and each instance of a pixel gradient of a cell associated with a bin is accumulated to provide a HOG for the cell.
    Type: Application
    Filed: May 19, 2017
    Publication date: July 4, 2019
    Applicant: FotoNation Limited
    Inventors: Mihai Constantin MUNTEANU, Vlad GEORGESCU, Corneliu ZAHARIA, Iulia SUCIU
  • Patent number: 10339626
    Abstract: A method for producing framing information for a set of N source images, each comprising an object region R, comprises scaling, translating and/or rotating images of the source images so that the object region is aligned. For a given image of the object aligned source images, at a given frame size, a given frame angle for a frame relative to the object aligned images and at a first candidate boundary position for the frame, the method determines if there is at least one position for a second boundary of the frame orthogonal to the first boundary where the frame lies within the image and the frame encloses the object region. If so, counters associated with the first candidate boundary position are incremented. Responsive to any counter meeting a threshold value,K?N, for the source images, framing is indicated as possible at the given frame size, frame angle, first candidate boundary position and any position for the second boundary associated with the threshold meeting counter.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: July 2, 2019
    Assignee: FotoNation Limited
    Inventor: Cosmin Pit Rada
  • Patent number: 10331960
    Abstract: Methods for detecting, identifying and displaying object information with a multi-camera vision system. In one embodiment presence of an object is detected in a region extending above a surface and positioned beyond a border, the region including at least first and second zones. A frame of image data is acquired which spans a field of view angle corresponding to a portion of a region from a position along the border. Object detection criteria are applied to analyze and classify an image of an object among a set of object types. A determination is made whether the object is present in the first zone based on application of a first series of scan windows varying in size over a first range of window sizes relative to the size of the image frame, this only permitting detection of images limited in size to a first range of image sizes.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: June 25, 2019
    Assignee: FotoNation Limited
    Inventor: Peter Corcoran
  • Patent number: 10334241
    Abstract: Systems and methods for detecting defective camera arrays, optic arrays and/or sensors are described. One embodiment includes capturing image data using a camera array; dividing the captured images into a plurality of corresponding image regions; identifying the presence of localized defects in any of the cameras by evaluating the image regions in the captured images; and detecting a defective camera array using the image processing system when the number of localized defects in a specific set of image regions exceeds a predetermined threshold, where the specific set of image regions is formed by: a common corresponding image region from at least a subset of the captured images; and any additional image region in a given image that contains at least one pixel located within a predetermined maximum parallax shift distance along an epipolar line from a pixel within said common corresponding image region within the given image.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: June 25, 2019
    Assignee: FotoNation Limited
    Inventors: Jacques Duparre, Andrew Kenneth John McMahon, Dan Lelescu, Kartik Venkataraman, Gabriel Molina
  • Patent number: 10334152
    Abstract: A method for acquiring an image comprises acquiring a first image frame including a region containing a subject at a first focus position; determining a first sharpness of the subject within the first image frame; identifying an imaged subject size within the first image frame; determining a second focus position based on the imaged subject size; acquiring a second image frame at the second focus position; and determining a second sharpness of the subject within the second image frame. A sharpness threshold is determined as a function of image acquisition parameters for the first and/or second image frame. Responsive to the second sharpness not exceeding the first sharpness and the sharpness threshold, camera motion parameters and/or subject motion parameters for the second image frame are determined before performing a focus sweep to determine an optimal focus position for the subject.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: June 25, 2019
    Assignee: FotoNation Limited
    Inventors: Florin Nanu, Alexandru Malaescu, Cosmin Clapon
  • Publication number: 20190174040
    Abstract: Systems and methods for transmitting and receiving image data captured by an imager array including a plurality of focal planes are described. One embodiment of the invention includes capturing image data using a plurality of active focal planes in a camera module, where an image is formed on each active focal plane by a separate lens stack, generating lines of image data by interleaving the image data captured by the plurality of active focal planes, and transmitting the lines of image data and the additional data.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 6, 2019
    Applicant: FotoNation Limited
    Inventor: Andrew Kenneth John McMahon
  • Patent number: 10310145
    Abstract: An image acquisition system for acquiring iris images for use in biometric recognition of a subject includes an optical system comprising a cluster of at least 2 lenses arranged in front of a common image sensor with each lens optical axis in parallel spaced apart relationship. Each lens has a fixed focus and a different aperture to provide a respective angular field of view. The lens with the closest focus has the smallest aperture and the lens with the farthest focus has the largest aperture so that iris images can be acquired across a focal range of at least from 200 mm to 300 mm.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: June 4, 2019
    Assignee: FotoNation Limited
    Inventors: Peter Corcoran, Petronel Bigioi, Christopher Dainty, Alexander Goncharov
  • Patent number: 10311649
    Abstract: Systems and methods for the manipulation of captured light fields and captured light field image data in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, a system for manipulating captured light field image data includes a processor, a display, a user input device, and a memory, wherein a depth map includes depth information for one or more pixels in the image data, and wherein an image manipulation application configures the processor to display a first synthesized image, receive user input data identifying a region within the first synthesized image, determine boundary data for the identified region using the depth map, receive user input data identifying at least one action, and perform the received action using the boundary data and the captured light field image data.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: June 4, 2019
    Assignee: FotoNation Limited
    Inventors: Andrew Kenneth John McMahon, Kartik Venkataraman, Robert Mullis
  • Patent number: 10311554
    Abstract: A method of providing a sharpness measure for an image comprises detecting an object region within an image; obtaining meta-data for the image; and scaling the chosen object region to a fixed size. A gradient map is calculated for the scaled object region and compared against a threshold determined for the image to provide a filtered gradient map of values exceeding the threshold. The threshold for the image is a function of at least: a contrast level for the detected object region, a distance to the subject and an ISO/gain used for image acquisition. A sharpness measure for the object region is determined as a function of the filtered gradient map values, the sharpness measure being proportional to the filtered gradient map values.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: June 4, 2019
    Assignee: FotoNation Limited
    Inventors: Florin Nanu, Adrian Bobei, Alexandru Malaescu, Cosmin Clapon
  • Patent number: 10310206
    Abstract: A communication system may include a first chassis having first and second side walls and adapted to slidably receive therein a plurality of cassettes. A first cable hanger assembly may have a first side edge hingedly coupled to the first side wall of the first chassis, the first cable hanger assembly including a plurality of first hangers adapted to support cables thereon. An axis of rotation of the first cable hanger assembly may be substantially orthogonal to a direction in which the plurality of cassettes are slideable. The cable hanger assembly may be rotatable from a first position to a second position so that during rotation from the first position to the second position, the plurality of first hangers move toward front faces of the plurality of cassettes.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: June 4, 2019
    Assignee: Go!Foton Holdings, Inc.
    Inventors: Kenichiro Takeuchi, Haiguang Lu, Alla Shtabnaya, Frank Rumore, Patrick Anderson
  • Publication number: 20190164341
    Abstract: In an embodiment, a 3D facial modeling system includes a plurality of cameras configured to capture images from different viewpoints, a processor, and a memory containing a 3D facial modeling application and parameters defining a face detector, wherein the 3D facial modeling application directs the processor to obtain a plurality of images of a face captured from different viewpoints using the plurality of cameras, locate a face within each of the plurality of images using the face detector, wherein the face detector labels key feature points on the located face within each of the plurality of images, determine disparity between corresponding key feature points of located faces within the plurality of images, and generate a 3D model of the face using the depth of the key feature points.
    Type: Application
    Filed: November 27, 2017
    Publication date: May 30, 2019
    Applicant: FotoNation Limited
    Inventor: Kartik Venkataraman
  • Patent number: 10306120
    Abstract: Systems and methods for implementing array cameras configured to perform super-resolution processing to generate higher resolution super-resolved images using a plurality of captured images and lens stack arrays that can be utilized in array cameras are disclosed. Lens stack arrays in accordance with many embodiments of the invention include lens elements formed on substrates separated by spacers, where the lens elements, substrates and spacers are configured to form a plurality of optical channels, at least one aperture located within each optical channel, at least one spectral filter located within each optical channel, where each spectral filter is configured to pass a specific spectral band of light, and light blocking materials located within the lens stack array to optically isolate the optical channels.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 28, 2019
    Assignee: FotoNation Limited
    Inventor: Jacques Duparre
  • Patent number: 10304166
    Abstract: Sub-regions within one or more face images are identified within a digital image, and enhanced by applying an artificial glint symmetrically and/or synchronously to image data corresponding to sub-regions of eyes within the face image. An enhanced face image is generated including an enhanced version of the face that includes certain original pixels in combination with pixels corresponding to the one or more eye regions of the face with the artificial glint.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: May 28, 2019
    Assignee: FotoNation Limited
    Inventors: Corneliu Florea, Cosmin Nicolae Stan, Mihai Ciuc, Adrian Capata
  • Patent number: 10303916
    Abstract: An image processing apparatus comprises a set of infra-red (IR) sources surrounding an image capture sensor and a processor operatively coupled to said IR sources and said image capture sensor. The processor being arranged to acquire from the sensor a succession of images, each illuminated with a different combination of the IR sources. The processor is further arranged to combine component images corresponding to the succession of images by selecting a median value for corresponding pixel locations of the component images as a pixel value for the combined image.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: May 28, 2019
    Assignee: FotoNation Limited
    Inventor: Shabab Bazrafkan
  • Publication number: 20190158822
    Abstract: A method for dynamically calibrating an image capture device comprises: a) determining a distance (DCRT, DEST) to an object within a scene; b) determining a first lens actuator setting (DACINIT) for the determined distance; c) determining a second lens actuator setting (DACFOCUS) providing maximum sharpness for the object in a captured image of the scene; and d) storing the determined distance (DCRT, DEST) and the first and second lens actuator settings. These steps are repeated at a second determined distance separated from the first determined distance. A calibration correction (ERRNEARPLP, ERRFARPLP) for stored calibrated lens actuator settings (DACNEARPLP, DACFARPLP) is determined as a function of at least: respective differences between the second lens actuator setting (DACFOCUS) and the first lens actuator setting (DACINIT) for each of the first and second determined distances; and the stored calibrated lens actuator settings are adjusted according to the determined calibration corrections.
    Type: Application
    Filed: December 3, 2018
    Publication date: May 23, 2019
    Applicant: FotoNation Limited
    Inventors: Alexandru MALAESCU, Florin NANU
  • Patent number: 10298949
    Abstract: A method of processing a stream of images comprises obtaining an image of a scene with a relatively short exposure time (SET) and obtaining an image of the same scene with a relatively longer exposure time (LET). Motion blur characteristics for the SET image corresponding to motion within the LET image are determined and the motion blur characteristics are applied to the SET image. The blurred SET image and the LET image are blended to provide a HDR image. The process is repeated for successive pairs of images in the stream to provide a sequence of HDR images which can be encoded in a video stream.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: May 21, 2019
    Assignee: FotoNation Limited
    Inventors: Razvan G. Condorovici, Cosmin Stan, Ilinca Dobre
  • Patent number: 10291969
    Abstract: A communication system includes a housing, a tray, and a guide arm. The tray has a plurality of ports each having a rear face connectable to a rear cable. The tray is movably engaged with the housing and has a first position substantially inside the housing and a second position substantially outside the housing. The guide arm has a first end pivotably attached to the tray between the plurality of ports and a rear of the housing, and a second free end opposite the first end. The guide arm is adapted to rotate from a first rotational position in which the guide arm is substantially parallel to the rear of the housing to a second rotational position in which the free end points toward the rear of the housing as the tray transitions from the first position to the second position.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: May 14, 2019
    Assignee: Go!Foton Holdings, Inc.
    Inventors: Kenichiro Takeuchi, Haiguang Lu
  • Publication number: 20190138807
    Abstract: An approach for an iris liveness detection is provided. A plurality of image pairs is acquired using one or more image sensors of a mobile device. A particular image pair is selected from the plurality of image pairs, and a hyperspectral image is generated for the particular image pair. Based on, at least in part, the hyperspectral image, a particular feature vector for the eye-iris region depicted in the particular image pair is generated, and one or more trained model feature vectors generated for facial features of a particular user of the device are retrieved. Based on, at least in part, the particular feature vector and the one or more trained model feature vectors, a distance metric is determined and compared with a threshold. If the distance metric exceeds the threshold, then a first message indicating that the plurality of image pairs fails to depict the particular user is generated.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 9, 2019
    Applicant: FotoNation Limited
    Inventor: Shejin THAVALENGAL
  • Patent number: 10275648
    Abstract: A method of iris recognition comprises detecting a body region larger than and comprising at least one iris in an image and performing a first eye modelling on the detected body region. If successful, the result of first iris segmentation based on the first eye model is chosen. Otherwise, a first iris identification is performed on the detected body region. If successful, the result of second iris segmentation based on a second eye modelling is chosen. Otherwise, second iris identification is performed on the image, third eye modelling is performed on the result of the second iris identification, and third iris segmentation is performed on the result of the third eye modelling. If successful, the result of third iris segmentation based on a third eye modelling is chosen. An iris code is extracted from any selected iris segment of the image.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: April 30, 2019
    Assignee: FotoNation Limited
    Inventors: Gabriel Costache, Barry McCullagh, Serghei Carateev
  • Patent number: 10275676
    Abstract: Systems and methods for storing images synthesized from light field image data and metadata describing the images in electronic files in accordance with embodiments of the invention are disclosed. One embodiment includes a processor and memory containing an encoding application and light field image data, where the light field image data comprises a plurality of low resolution images of a scene captured from different viewpoints. In addition, the encoding application configures the processor to synthesize a higher resolution image of the scene from a reference viewpoint using the low resolution images, where synthesizing the higher resolution image involves creating a depth map that specifies depths from the reference viewpoint for pixels in the higher resolution image; encode the higher resolution image; and create a light field image file including the encoded image, the low resolution images, and metadata including the depth map.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: April 30, 2019
    Assignee: FotoNation Limited
    Inventors: Kartik Venkataraman, Semyon Nisenzon, Dan Lelescu