Patents Assigned to FotoNation
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Publication number: 20200161827Abstract: The present disclosure is directed to an optical device including at least one temperature-dependent tunable element for controlling a wavelength of an optical signal, a first temperature control circuit for controlling a temperature of a first region of the optical device; and a second temperature control circuit for controlling a temperature of a second region of the optical device. The second region may include a portion of the first region. The second region may be smaller than the first region. The tunable element may be positioned in the second region such that a temperature of the tunable element is controlled based on the second temperature control circuit controlling the temperature of the second region. The tunable element may be one of (i) a laser for transmitting an outgoing optical signal and (ii) an optical filter coupled to a photodetector for receiving an incoming optical signal.Type: ApplicationFiled: January 22, 2020Publication date: May 21, 2020Applicant: Go!Foton Holdings, Inc.Inventors: Feng Tian, Chi Kong Paul Ng
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Patent number: 10656391Abstract: An optical system for a shallow form factor camera module comprises: seven even aspheric singlet lens elements formed of a molded plastics material, a flat image sensor, and a central aperture stop with at least 3 lens elements disposed in front of the aperture stop and at least 3 rear lens elements disposed between the aperture stop and the image sensor. The aperture stop has a pupil wide enough to provide at least f/1.0 aperture and the optical system has a total track length less than about 8.2 mm and a minimum spacing of about 0.6 mm between a surface of the rearmost lens element and an imaging plane of said image sensor. A magnitude of an aspheric coefficient for h4 of at least one surface of each of said rear lens elements is greater than 5×10?2.Type: GrantFiled: April 2, 2019Date of Patent: May 19, 2020Assignee: FotoNation LimitedInventor: Timothee Cognard
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Patent number: 10657351Abstract: 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: GrantFiled: May 20, 2019Date of Patent: May 19, 2020Assignee: FotoNation LimitedInventor: Shabab Bazrafkan
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Patent number: 10656361Abstract: An optical fiber termination system includes an optical fiber termination unit assembly, an enclosure, and a plurality of electronic or optical devices within the enclosure. The assembly includes a housing having an interior surface, a patch panel terminal coupled to the interior surface of the housing, an optical assembly, an input optical fiber, and a plurality of optical fibers. The input optical fiber extends into the housing to the optical signal assembly. The output optical fibers extend out of the housing from the patch panel terminal. The enclosure is separate from the housing. The optical signal assembly divides a light beam emitted from the optical signal assembly into a plurality of light beams that are received by the patch panel terminal. The output optical fibers are configured to convey respective light beams to any one or any combination of the plurality of electronic and optical devices in the enclosure.Type: GrantFiled: May 4, 2018Date of Patent: May 19, 2020Assignee: Go!Foton Holdings, Inc.Inventors: Kenichiro Takeuchi, Haiguang Lu
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Patent number: 10657628Abstract: 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: GrantFiled: May 30, 2019Date of Patent: May 19, 2020Assignee: FotoNation LimitedInventors: Florin Nanu, Adrian Bobei, Alexandru Malaescu, Cosmin Clapon
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Publication number: 20200151894Abstract: Systems and methods for hybrid depth regularization in accordance with various embodiments of the invention are disclosed. In one embodiment of the invention, a depth sensing system comprises a plurality of cameras; a processor; and a memory containing an image processing application. The image processing application may direct the processor to obtain image data for a plurality of images from multiple viewpoints, the image data comprising a reference image and at least one alternate view image; generate a raw depth map using a first depth estimation process, and a confidence map; and generate a regularized depth map. The regularized depth map may be generated by computing a secondary depth map using a second different depth estimation process; and computing a composite depth map by selecting depth estimates from the raw depth map and the secondary depth map based on the confidence map.Type: ApplicationFiled: November 15, 2019Publication date: May 14, 2020Applicant: FotoNation LimitedInventors: Ankit Jain, Priyam Chatterjee, Kartik Venkataraman
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Publication number: 20200143510Abstract: The present invention relates to an image processing apparatus which determines an order for calculating output image pixels that maximally reuses data in a local memory for computing all relevant output image pixels. Thus, the same set of data is re-used until it is no longer necessary. Output image pixel locations are browsed to determine pixel values in an order imposed by available input data, rather than in an order imposed by pixel positions in the output image. Consequently, the amount of storage required for local memory as well as the number of input image read requests and data read from memory containing the input image is minimized.Type: ApplicationFiled: November 5, 2018Publication date: May 7, 2020Applicant: FotoNation LimitedInventor: Dan NICULA
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Publication number: 20200143523Abstract: A method of correcting an image obtained by an image acquisition device includes obtaining successive measurements, Gn, of device movement during exposure of each row of an image. An integration range, idx, is selected in proportion to an exposure time, te, for each row of the image. Accumulated measurements, Cn, of device movement for each row of an image are averaged across the integration range to provide successive filtered measurements, G, of device movement during exposure of each row of an image. The image is corrected for device movement using the filtered measurements G.Type: ApplicationFiled: December 23, 2019Publication date: May 7, 2020Applicant: FotoNation LimitedInventor: Piotr STEC
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Patent number: 10643383Abstract: 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: GrantFiled: November 27, 2017Date of Patent: May 5, 2020Assignee: FotoNation LimitedInventor: Kartik Venkataraman
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Patent number: 10631733Abstract: An optical probe includes a lens combination, an optical fiber assembly, and a cover. The lens combination includes a first lens and a second lens. The first lens has a generally planar first lens surface defining an oval edge. The second lens has a generally planar second lens surface operatively coupled to the first lens surface. The second lens has four primary edges and at least two secondary edges connecting pairs of the primary edges. Each primary edge extends in substantially a straight line between two spaced-apart points at the oval edge of the first lens. The optical fiber and the lens combination are configured such that a light beam exiting the optical fiber enters the lens combination at an entering surface of the first lens, passes through the first lens and exits the first lens at the first lens surface. The cover circumferentially surrounds the optical fiber assembly.Type: GrantFiled: January 16, 2018Date of Patent: April 28, 2020Assignee: Go!Foton Holdings, Inc.Inventors: Kenichiro Takeuchi, Akimitsu Sato
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Patent number: 10638099Abstract: Systems and methods for extended color processing on Pelican array cameras in accordance with embodiments of the invention are disclosed. In one embodiment, a method of generating a high resolution image includes obtaining input images, where a first set of images includes information in a first band of visible wavelengths and a second set of images includes information in a second band of visible wavelengths and non-visible wavelengths, determining an initial estimate by combining the first set of images into a first fused image, combining the second set of images into a second fused image, spatially registering the fused images, denoising the fused images using bilateral filters, normalizing the second fused image in the photometric reference space of the first fused image, combining the fused images, determining a high resolution image that when mapped through a forward imaging transformation matches the input images within at least one predetermined criterion.Type: GrantFiled: January 11, 2019Date of Patent: April 28, 2020Assignee: FotoNation LimitedInventors: Robert H. Mullis, Dan Lelescu, Kartik Venkataraman
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Publication number: 20200128167Abstract: A system includes an image sensor, an adjustable aperture, and a memory. THE memory includes computer executable instructions that, when executed by a processor, cause the system to perform operations including obtaining a first image via the image sensor based at least in part on a first aperture stop of the adjustable aperture, identifying a first pixel of the first image, identifying a second pixel of the first image, determining a second aperture stop of the adjustable aperture based at least in part on the first pixel, determining a third aperture stop of the adjustable aperture based at least in part on the second pixel, obtaining a second image via the image sensor based at least in part on the second aperture stop, and obtaining a third image via the image sensor based at least in part on the third aperture stop.Type: ApplicationFiled: December 9, 2019Publication date: April 23, 2020Applicant: FotoNation LimitedInventors: Ruxandra VRANCEANU, Razvan G. CONDOROVICI
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Publication number: 20200126178Abstract: A convolutional neural network (CNN) for an image processing system comprises an image cache responsive to a request to read a block of N×M pixels extending from a specified location within an input map to provide a block of N×M pixels at an output port. A convolution engine reads blocks of pixels from the output port, combines blocks of pixels with a corresponding set of weights to provide a product, and subjects the product to an activation function to provide an output pixel value. The image cache comprises a plurality of interleaved memories capable of simultaneously providing the N×M pixels at the output port in a single clock cycle. A controller provides a set of weights to the convolution engine before processing an input map, causes the convolution engine to scan across the input map by incrementing a specified location for successive blocks of pixels and generates an output map within the image cache by writing output pixel values to successive locations within the image cache.Type: ApplicationFiled: December 2, 2019Publication date: April 23, 2020Applicant: FotoNation LimitedInventors: Mihai Constantin MUNTEANU, Alexandru CALIMAN, Corneliu ZAHARIA, Dragos DINU
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Patent number: 10628568Abstract: A biometric recognition system for a hand held computing device incorporating an inertial measurement unit (IMU) comprising a plurality of accelerometers and at least one gyroscope is disclosed. A tremor analysis component is arranged to: obtain from the IMU, accelerometer signals indicating device translational acceleration along each of X, Y and Z axes as well as a gyroscope signal indicating rotational velocity about the Y axis during a measurement window. Each of the IMU signals is filtered to provide filtered frequency components for the signals during the measurement window. The accelerometer signals are combined to provide a combined filtered accelerometer magnitude signal for the measurement window. A spectral density estimation is provided for each of the combined filtered accelerometer magnitude signal and the filtered gyroscope signal.Type: GrantFiled: March 29, 2017Date of Patent: April 21, 2020Assignee: FotoNation LimitedInventors: Adrian Zamfir, Andreea Oana Miu, Corneliu Florea
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Patent number: 10615973Abstract: Systems and methods of detecting an unauthorized data insertion into a stream of data segments extending between electronic modules or between electronic components within a module, wherein a data stream is encrypted with a secure encryption key for transmission, then decrypted upon receipt using a corresponding secure decryption key to confirm data transmission integrity.Type: GrantFiled: December 8, 2017Date of Patent: April 7, 2020Assignee: FotoNation LimitedInventors: Peter Corcoran, Alexandru Drimbarean
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Patent number: 10606050Abstract: A portrait lens configuration for meeting handheld device form factor constraints. First and second meniscus lenses each have a reflective surface to provide internal reflections for transmitting light toward a focal plane. A third lens is positioned between the meniscus lenses and the focal plane. The first lens includes an anterior concave surface having a reflective material extending over a portion thereof. Light received by the first meniscus lens can be transmitted therethrough. The reflective material is positioned along the anterior concave surface to receive light transmitted therethrough and reflected back from the second lens. In an associated method the first meniscus lens is positioned to receive light through a first of two opposing refractive surfaces. After each lens provides an internal reflection, reflected light is transmitted through the second of the two opposing surfaces and then through a bore positioned within the second lens to the third lens.Type: GrantFiled: March 6, 2018Date of Patent: March 31, 2020Assignee: FotoNation LimitedInventors: Christopher Dainty, Alexander Goncharov, Conor J. Sheil
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Publication number: 20200086313Abstract: A reaction processor is provided with a reaction processing vessel in which a channel is formed, a liquid feeding system, a temperature control system for providing a high temperature region and a low temperature region to the channel, and a fluorescence detector for detecting the sample passing through a fluorescence detection region of the channel, and a CPU for controlling the liquid feeding system based on a signal that is detected. A target stop position X[L]0(n+1) of the sample in the low temperature region in an (n+1)th cycle is corrected from a target stop position X[L]0(n) of the sample in the low temperature region in the nth cycle based on the result of stopping control on the sample in the nth cycle.Type: ApplicationFiled: November 19, 2019Publication date: March 19, 2020Applicants: Nippon Sheet Glass Company, Limited, Go!Foton, Inc.Inventors: Takashi FUKUZAWA, Naofumi NISHIZAWA, Hisao NAGATA
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Publication number: 20200081216Abstract: An optical fiber distribution system may include a housing that includes an end cap unit, a main cabinet unit, and a fiber termination unit. The main cabinet unit may have a door that opens to provide access to the interior of the main cabinet unit, which may include a plurality of cassettes in a stacked arrangement within the main cabinet unit. The cassettes may be rotatably coupled to a cassette support so that, when the door is open, the cassettes may be individually rotated at least partially out of the main cabinet unit to provide access to the cassettes for maintenance. The fiber distribution system may be mountable to a strand so that the system hangs in a suspended state, and a plurality of the main cabinet units may be coupled to one another in a cascading fashion to provide increased cassette capacity.Type: ApplicationFiled: September 9, 2019Publication date: March 12, 2020Applicant: Go!Foton Holdings, Inc.Inventors: Kenichiro Takeuchi, David Zhi Chen, Alla Shtabnaya, Haiguang Lu
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Patent number: 10586032Abstract: Systems and methods for authenticating a biometric device using a trusted coordinating smart device in accordance with embodiments of the invention are disclosed.Type: GrantFiled: December 3, 2018Date of Patent: March 10, 2020Assignee: FotoNation LimitedInventor: Peter Corcoran
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Patent number: 10587806Abstract: 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: GrantFiled: March 11, 2019Date of Patent: March 10, 2020Assignee: FotoNation LimitedInventors: Petronel Bigioi, Peter Corcoran, Piotr Stec