Patents Examined by Li Liu
  • Patent number: 9978142
    Abstract: A system for quality assessment of optical colonoscopy images includes an input device configured to acquire a series of images during an optical colonoscopy. A computing device is coupled in communication with the input device and configured to acquire from the input device an input image from the series of images captured during the optical colonoscopy; form a cell grid including a plurality of cells on the input image; perform an image transformation onto the input image with each cell of the plurality of cells within the cell grid; reconstruct each cell to form a reconstructed image; compute a difference image of a sum of a plurality of differences between the input image and the reconstructed image; compute a histogram of the difference image; and apply a probabilistic classifier to the histogram to calculate an informativeness score for the input image.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: May 22, 2018
    Assignees: Arizona Board of Regents on Behalf of Arizona State University, Mayo Foundation for Medical Education and Research
    Inventors: Changching Chi, Nima Tajbakhsh, Haripriya Sharma, Suryakanth Gurudu, Jianming Liang
  • Patent number: 9967482
    Abstract: An image processing apparatus to execute noise reduction processing on image data includes a setting unit, a determination unit, and an output unit. The setting unit sets a pixel group from among a plurality of pixel group candidates. The plurality of pixel group candidates includes at least a first pixel group having a plurality of pixels being a first number of pixels or a second pixel group having a plurality of pixels being a second number of pixels which is different from the first number of pixels. The determination unit determines, based on a similarity between a target pixel and a reference pixel that is obtained according to the set pixel group, a weight corresponding to the reference pixel. The output unit outputs a value, calculated based on a pixel value of the reference pixel and the weight, as a noise-reduced pixel value of the target pixel.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: May 8, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Chihiro Tajima
  • Patent number: 9967025
    Abstract: A diagnostic testing utility is used to perform single link diagnostics tests including an electrical loopback test, an optical loopback test, a link traffic test, and a link distance measurement test. To perform the diagnostic tests, two ports at each end of a link are identified and then statically configured by a user. The ports will be configured as D_Ports and as such will be isolated from the fabric with no data traffic flowing through them. This configuration can be static or can be on request or on errors. The ports will then be used to send test frames to perform the diagnostic tests. After completion of requested or on error testing the ports can return to normal operation.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: May 8, 2018
    Assignee: Brocade Communications Systems, LLC
    Inventors: Meenakshi Garg, Venugopal Tummala, Gin Man Cheung, Raymond Grigsby, Balakrishna Wusirika
  • Patent number: 9960857
    Abstract: Described herein are systems and methods for accurately estimating and removing a carrier frequency offset. One exemplary embodiment relates to a system comprising a frequency offset detection circuit detecting a carrier frequency offset in an optical signal, and a frequency testing circuit calculating an estimated frequency offset value of the carrier frequency offset, wherein the frequency testing circuit removes a carrier phase based on the estimated frequency offset value and recovers the optical signal. Another exemplary embodiment relates to a method comprising detecting a carrier frequency offset in an optical signal, calculating an estimated frequency offset value of the carrier frequency offset, removing a carrier phase based on the estimated frequency offset value, and recovering the optical signal.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: May 1, 2018
    Inventor: Xiang Zhou
  • Patent number: 9960843
    Abstract: Using pump-probe measurements on multi-span optical links may result in the determination of one or more of the following: 1) wavelength-dependent power profile and gain evolution along the optical link; 2) wavelength-dependent dispersion map; and 3) location of regions of high polarization-dependent loss (PDL) and polarization-mode dispersion (PMD). Such measurements may be a useful diagnostic for maintenance and upgrade activities on deployed cables as well as for commissioning new cables.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: May 1, 2018
    Assignee: Ciena Corporation
    Inventors: Andrew D. Shiner, Michael Andrew Reimer, Maurice O'Sullivan, Andrzej Borowiec
  • Patent number: 9961353
    Abstract: Different implementations are described, in particular, implementations for coding and decoding a scalable stream comprising a base layer and at least one enhancement layer. For example, one method provides for decoding a first part of the enhancement layer relating to a group of blocks into decoded enhancement data which comprise at least one item of information for identifying at least one region of the reconstructed at least one image and obtaining residues for at least one block of the group of blocks from a second part of the enhancement layer.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: May 1, 2018
    Inventors: Philippe Bordes, Patrick Lopez, Mehmet Turkan
  • Patent number: 9959618
    Abstract: An image processing apparatus includes: a detecting unit configured to detect images of interest including regions of interest that are estimated as an object to be detected, from a group of a series of images acquired by sequentially imaging a lumen of a living body; a global similarity calculating unit configured to calculate a global similarity that is a similarity between regions including at least regions other than the regions of interest, between the images of interest different from one another; an image-of-interest group extracting unit configured to extract an image-of-interest group including identical regions of interest, in accordance with comparison between a threshold and the global similarity or a determination parameter based on the global similarity; and a representative image extracting unit configured to extract a representative image from the image-of-interest group.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: May 1, 2018
    Inventors: Makoto Kitamura, Yamato Kanda
  • Patent number: 9959601
    Abstract: Disclosed is a distortion rectification method, comprising: taking a wide-angle photograph using a camera of a terminal; determining distortion regions and non-distortion regions in the wide-angle photograph; obtaining a target distortion region selected by a user; dividing the target distortion region into M grid regions of a first pre-set size, wherein M is an integer greater than or equal to one; and respectively preforming distortion rectification on the M-grid regions of the first pre-set size. Also disclosed is a terminal.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: May 1, 2018
    Inventor: Yuanqing Zeng
  • Patent number: 9960886
    Abstract: A noise detection device includes a connector used for connecting a multicore cable, a connector used for connecting the communication device, a noise-detecting data generation unit which generates noise-detecting data with an error detection sign to detect the noise, and a detection unit which continuously transmits or receives the noise-detecting data using at least one core line not used in the communication among core lines of the multicore cable to detect an error.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: May 1, 2018
    Assignee: FANUC Corporation
    Inventor: Yutaka Sakai
  • Patent number: 9954619
    Abstract: Various examples are provided for jamming avoidance response (JAR), and photonic implementations thereof. In one example, a method includes generating optical pulses that correspond to raising envelope of a beat signal associated with an interference signal and a reference signal; generating optical spikes that correspond to positive zero crossing points of the reference signal; providing a phase output that indicates whether the beat signal is leading or lagging the reference signal, the phase output based at least in part upon the optical spikes; and determining an adjustment to the reference frequency based at least in part upon the optical pulses and the phase output. In another example, a JAR system includes a photonic P-unit to generate the optical pulses; a photonic ELL/T-unit to generate the optical spikes; a photonic TS unit to provide the phase output; and a logic unit to determine the adjustment to the reference frequency.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: April 24, 2018
    Inventors: Mable P. Fok, Ryan Toole
  • Patent number: 9954616
    Abstract: A fiber-radio communication network includes a base station (300) and wireless access nodes (100) coupled by fiber optic cables (125). The base station (300) includes a switch module (320) arranged to switch Ethernet signals on a local area network, and a media converter rack module (310) comprising media converter units MC1-MC6 arranged to convert between a baseband Ethernet signal carried by the fiber optic cables (125) and an Ethernet digital signal for the switch. The wireless access node (100) comprises a media converter module (120) which converts between a baseband Ethernet signal carried by the fiber optic cables and an Ethernet digital signal; and a wireless access point module (110) comprising a local modem which converts between the Ethernet digital signal received over the fiber optic cables and a wireless transmission in a 60 GHz range for wireless communication with a client terminal (400) in the vicinity of the wireless access node (100).
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: April 24, 2018
    Assignee: BAE Systems plc
    Inventors: Christopher Ralph Pescod, Shahbaz Nawaz, Mark Trevor Newman
  • Patent number: 9953240
    Abstract: An image processing system includes: a first identification unit that identifies a static area from an input image captured at each of a plurality of time points; an image generation unit that generates a first image by using the static areas of respective input images captured in a first time span from a processing time point and generates a second image by using the static areas of respective images captured in a second time span from the processing time point; and a second identification unit that compares the first image and the second image and identifies an area having a difference.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: April 24, 2018
    Assignee: NEC Corporation
    Inventor: Yukie Ebiyama
  • Patent number: 9947092
    Abstract: A method of processing X-ray images of a breast (B), the method comprising the steps of —generating (GEN3DV) a 3D volume from a plurality of X-ray images, —processing (DETMC) the 3D volume and/or the plurality of X-ray images, —computing (DETMC-CTR), for each region of interest in the 3D volume, a 3D characteristic position of the region of interest, —computing (CALCTGT) at least one needle target 3D position from a plurality of said computed 3D characteristic positions, —associating (SELIMG-TGT) each needle target position with a target image, —displaying (DISP-IMG) a slice image on a graphical interface, and —if the current slice image is a target image, displaying (DISP-TGT) on the graphical interface a target marker indicating each needle target position associated with the displayed current slice image.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 17, 2018
    Inventors: Laurence Vancamberg, Giovanni Palma
  • Patent number: 9941965
    Abstract: Techniques for charging and optical communication with electronic devices are provided. Specifically, systems and methods to provide charging through laser or optical means and to provide optical communications are presented. Even more specifically, in one embodiment, the systems and methods comprise standard USB interfaces, USB protocols and USB connectors.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: April 10, 2018
    Assignee: Flextronics AP, LLC
    Inventors: Armando J. Lucrecio, Jiayin Ma, Leonard Richiuso
  • Patent number: 9930354
    Abstract: An image decoder includes a processor and a memory. The memory includes instructions configured to cause the processor to perform steps. The steps include to receive a bitstream including a plurality encoded blocks representing an image, receive a boundary indicator representing a cropped portion of the image, determine a row start and a row end within the image based on the boundary indicator, and in a single decoding pass, entropy decode the plurality of encoded blocks that include the row start, the row end and the rows there between and transform for display a portion of the plurality of encoded blocks that include the rows including the cropped portion of the image, and skip processing of a remainder of the plurality of encoded blocks.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: March 27, 2018
    Assignee: Google LLC
    Inventors: Matt Sarett, Leon Scroggins, Derek Sollenberger, Michael Roland Reed
  • Patent number: 9928607
    Abstract: The present invention relates to a device for obtaining a vital sign of a subject, comprising an interface (20) for receiving a set of image frames of a subject, a motion analysis unit (30) for analyzing at least one measurement area within the image frames of the set of image frames and for characterizing motion of the subject within the set of image frames, a signal extraction unit (40) for extracting photoplethysmographic, PPG, signals from the set of image frames using the characterization of motion of the subject within the set of image frames, and a vital signs determination unit (50) for determining vital sign information from the extracted PPG signals. The motion analysis unit comprises a motion estimation unit (32), a spatial characteristic extraction unit (34), and a motion characterization unit (36).
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: March 27, 2018
    Inventors: Vincent Jeanne, Marinus Bastiaan Van Leeuwen, Michel Jozef Agnes Asselman
  • Patent number: 9922406
    Abstract: There is provided an image processing apparatus including an input device configured to receive a stroke input, and a display controller configured to control a displaying of a modified stroke, wherein the modified stroke is synthesized based on characteristic parameters of the received stroke input and characteristic parameters of a reference stroke that has been matched to the received stroke input.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: March 20, 2018
    Inventors: Yoshihito Ohki, Yasuyuki Koga, Tsubasa Tsukahara, Ikuo Yamano, Hiroyuki Mizunuma, Miwa Ichikawa
  • Patent number: 9911213
    Abstract: A system and method that determines a seam between pairs of adjacent images for panoramic image stitching is disclosed. The method includes receiving a sequence of images, determining a pair of adjacent images in the sequence of images, matching one or more objects corresponding to a same object identifier in the pair of adjacent images, determining a seam in an overlap region between the pair of adjacent images and determining a portion of pixels from each image of the pair of adjacent images to represent in a stitched panoramic image based on the seam.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: March 6, 2018
    Assignee: Ricoh Co., Ltd.
    Inventors: Michael Gormish, Edward Schwartz
  • Patent number: 9904990
    Abstract: The disclosure includes a system and method for performing image rectification using a single image and information identified from the single image. An image recognition application receives an input image, identifies a plurality of objects in the input image, estimates rectification parameters for the plurality of objects, identifies a plurality of candidate rectification parameters using a voting procedure on the rectification parameters for the plurality of objects, estimates final rectification parameters based on the plurality of candidate rectification parameters, computes a global transformation matrix using the final rectification parameters, and performs image rectification on the input image using the global transformation matrix.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 27, 2018
    Assignee: Ricoh Co., Ltd.
    Inventors: Jorge Moraleda, Ekta Prashnani, Michael J. Gormish, Kathrin Berkner, Silvio Savarese
  • Patent number: 9905002
    Abstract: A system for determining the prognosis of a patient suffering from pulmonary embolism is provided. The system may include at least one computer system configure to receive patient specific data regarding his pulmonary embolism status. The at least one computer system may be further configured to create a model of the patient's heart, with at least information of the two ventricles, and to determine the ratio of sizes of the ventricles. The system will then report such ratio to the clinician or report a risk index of clinical outcome for such patient.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: February 27, 2018
    Inventors: Germán González Serrano, Daniel Jiménez Carretero, Frank John Rybicki, María J. Ledesma Carbayo, Sara Rodríguez López, Raúl San José Estépar