Patents by Inventor Hui Chao

Hui Chao 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).

  • Publication number: 20130322767
    Abstract: A method for estimating camera pose includes: obtaining an image of a location captured via a camera, where the image includes a target object and edge line features outside of the target object; and calculating a pose of the camera with respect to the target object based on the edge line features.
    Type: Application
    Filed: March 14, 2013
    Publication date: December 5, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Hui CHAO, Yanghai TSIN, Faraz MOHAMMAD MIRZAEI
  • Publication number: 20130310080
    Abstract: Various methods, apparatuses and/or articles of manufacture are provided which may be implemented via one or more electronic devices to communicate navigation assistance data for at least one transmitting device that, while operatively provisioned for use in an indoor environment, may prove useful in estimating a position of a mobile device located in an adjacent outdoor environment.
    Type: Application
    Filed: August 10, 2012
    Publication date: November 21, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Ravi Palanki, Saumitra Mohan Das, Hui Chao
  • Publication number: 20130295952
    Abstract: Various methods, apparatuses and articles of manufacture may be implemented for use in one or more computing platforms to adaptively provide and/or obtain indoor navigation assistance data (INAD) update(s) for use by a mobile device. An INAD update may, for example, comprise a subset of INAD available for an indoor environment. Such a subset may be determined based, at least in part, on a bounded region in an electronic map of the indoor environment. Such a bounded region may, for example, have a shape and/or a size based, at least in part, on at least one parameter indicative of a motion state of the mobile device.
    Type: Application
    Filed: July 10, 2012
    Publication date: November 7, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Hui Chao, Saumitra Mohan Das, Rajarshi Gupta, Behrooz Khorashadi, Vinay Sridhara, Payam Pakzad
  • Patent number: 8565539
    Abstract: A system and a method are provided for determining an estimated age of an individual of interest based on images in an image collection. An example system includes a memory for storing computer executable instructions, and a processing unit for accessing the memory and executing the computer executable instructions. The computer executable instructions include an age class estimator to classify a plurality of images of the individual into age classes, each age class corresponding to an interval of age, and each image having a known time stamp, a probability determination engine to determine, for each age class, a value of class probability that an image in the collection falls within the age class, an age determination engine to determine a transition time based on the values of class probability and the known time stamp, and to determine the estimated age of the individual based on the determined transition time.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: October 22, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hui Chao, Tong Zhang, Daniel R. Tretter
  • Publication number: 20130267178
    Abstract: Techniques are provided which may be implemented using various methods, apparatuses and/or articles of manufacture to provide or otherwise support mobile device positioning. The mobile device positioning may be based, at least in part, on one or more perceived routability constraints that may or may not affect actual movement of a mobile device within an indoor environment.
    Type: Application
    Filed: August 6, 2012
    Publication date: October 10, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Payam Pakzad, Behrooz Khorashadi, Hui Chao
  • Publication number: 20130267260
    Abstract: Disclosed is a method for receiving a conceptual map of a navigable area, the conceptual map including two or more topological elements being related to one another in the conceptual map by a first set of dimensions; applying one or more ground truth measurements or topological constraints to the first set of dimensions of the conceptual map to provide a modified map having corrected dimensions; and mapping an estimated location of the mobile station to the modified map.
    Type: Application
    Filed: April 10, 2012
    Publication date: October 10, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Hui Chao, Sameera Poduri, Rajarshi Gupta
  • Publication number: 20130238234
    Abstract: Apparatuses, methods, systems and computer-readable media for using visibility maps of identified points of interest (POIs) to determine a user's location are presented. Users may determine their locations without relying on a global positioning technique, such as GPS or A-GPS. A user may instead rely on POIs identifiable from the user's visual field of view, and determine position based on the common area visible to each identified POI.
    Type: Application
    Filed: September 5, 2012
    Publication date: September 12, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Hui Chao, Behrooz Khorashadi, Saumitra Mohan Das
  • Publication number: 20130236106
    Abstract: Apparatuses, methods, systems and computer-readable media for generating a visibility map in determination of a user's location are presented. Some embodiments may identify a point of interest (POI) whose location is predefined on a map. The map may be an overhead map, similar to a map found at a shopping mall or a 3-dimensional map. Embodiments may then determine a plurality of vectors emanating from the POI. The vectors may be representative of lines of sight from the POI on the map. Embodiments may then integrate at least some of the plurality of vectors to calculate an area on the map representative of a visibility map.
    Type: Application
    Filed: September 5, 2012
    Publication date: September 12, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Hui CHAO, Behrooz Khorashadi, Saumitra Mohan Das
  • Publication number: 20130236105
    Abstract: Apparatuses, methods, systems and computer-readable media for determining a hallway edge and/or room entrance of a map are presented. Embodiments may identify a point of interest (POI) on the map indicative of the room entrance. Embodiments may determine a first edge of the map close to the POI and representative of at least a first wall on the map, and may determine a second edge of the map close to the POI and representative of at least a second wall on the map. Embodiments may then perform a rank analysis of the first edge and second edge based on at least one characteristic of the first edge and one characteristic of the second edge, and may determine the orientation of the room entrance and/or the determine the hallway edge of the POI based at least in part on the rank analysis.
    Type: Application
    Filed: September 5, 2012
    Publication date: September 12, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Hui CHAO, Behrooz Khorashadi, Saumitra Mohan Das
  • Publication number: 20130230208
    Abstract: A mobile device can receive OCR library information associated with a coarse position. The coarse position can be determined by the mobile device, or by a network server configured to communicate with the mobile device. A camera on the mobile device can obtain images of human-readable information in an area near the coarse position. The view finder image can be processed with an OCR engine that is utilizing the OCR library information to determine one or more location string values. A location database can be searched based on the location string values. The position of the mobile device can be estimated and displayed. The position estimated can be adjusted based on the proximity of the mobile device to other features in the image.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 5, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Rajarshi GUPTA, Saumitra Mohan DAS, Hui CHAO
  • Patent number: 8515491
    Abstract: Methods and apparatus for displaying content on a mobile device are disclosed. In one embodiment, a method includes obtaining content to display on the mobile device, obtaining distance information indicative of a distance that separates a user from the mobile device, accessing content-size data on the mobile device that is associated with the distance information, and adjusting a presentation of content on the mobile device based upon the content-size data.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: August 20, 2013
    Assignee: Qualcomm Innovation Center, Inc.
    Inventors: Saumitra M. Das, Hui Chao
  • Publication number: 20130212094
    Abstract: Systems and methods for managing and utilizing visual signature (VS) databases are described herein. A method for managing a VS database as described herein includes obtaining a plurality of images of objects represented by a VS; obtaining context information associated with the plurality of images; grouping the plurality of images into one or more context classifications according to the context information associated with the plurality of images; for respective ones of the one or more context classifications, selecting an image representative of the VS according to one or more criteria; and adding the selected images for the respective ones of the one or more context classifications to entries of the VS database corresponding to the VS.
    Type: Application
    Filed: June 22, 2012
    Publication date: August 15, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Ayman Fawzy NAGUIB, Hui CHAO, Saumitra Mohan DAS, Rajarshi GUPTA
  • Publication number: 20130194428
    Abstract: System and method for determining location of a device using opposing cameras are disclosed. In one embodiment, the method includes activating a front-facing camera and a back-facing camera of the device, capturing a first pair of images from a first orientation using the front-facing camera and the back-facing camera, where the first pair of images includes a first front image and a first back image, monitoring the device being rotated to a second orientation, capturing a second pair of images from the second orientation using the front-facing camera and the back-facing camera, where the second pair of images includes a second front image and a second back image, and determining a location of the device using the first pair of images and the second pair of images.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 1, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Hui Chao, Saumitra M. Das, Sameera Poduri
  • Publication number: 20130124981
    Abstract: Information relating to an exclusion zone to be provided on a page is received (102), where the exclusion zone defines a corresponding area of the page that is free of content to be inserted in the page. A layout defining plural partitions on the page is produced (104), where the layout includes the exclusion zone and the content having a plurality of elements that are inserted by recursively defining the plural partitions on the page, where the exclusion zone and content elements are provided in respective ones of the plural partitions, and where recursively defining the plural partitions considers presence of the exclusion zone.
    Type: Application
    Filed: July 29, 2010
    Publication date: May 16, 2013
    Inventors: Hui Chao, C. Brian Atkins, Daniel R. Tretter
  • Publication number: 20130101159
    Abstract: Person detection and tracking techniques may be used to estimate pedestrian traffic in locations equipped with cameras. Persons detected in video data from the cameras may help determine existing pedestrian traffic data. Future pedestrian traffic estimation may be performed to estimate pedestrian traffic characteristics (such as volume, direction, etc.) Such traffic estimation may be provided to users for route planning/congestion information. A traffic map can be derived based on the number of people at or expected to be at certain locations. The map may be provided to users to provide traffic data and/or estimations.
    Type: Application
    Filed: December 9, 2011
    Publication date: April 25, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Hui Chao, Rajarshi Gupta
  • Publication number: 20130101163
    Abstract: The subject matter disclosed herein relates to a method, apparatus, and/or system for obtaining one or more images captured at a mobile device and determining a location context identifier (LCI) identifying an area including a location of the mobile device based, at least in part, on the one or more captured images. The LCI may be selected from among a plurality of LCIs.
    Type: Application
    Filed: September 27, 2012
    Publication date: April 25, 2013
    Inventors: Rajarshi GUPTA, Hui CHAO, Saumitra Mohan DAS
  • Publication number: 20130094780
    Abstract: Disclosed herein are a system and a method that use a background model to determine and to segment target content from an image and replace them with different content to provide a composite image. The background model can be generated based on image data representing images of a predetermined area that does not include traversing content. The background model is compared to image data representing a set of captured images of the predetermined area. Based on the comparison, portions of an image that differs from the background model are determined as the traversing content. A target content model is used to determine the target content in the traversing content. The target content determined in the images is replaced with different content to provide a composite image.
    Type: Application
    Filed: July 26, 2010
    Publication date: April 18, 2013
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Feng Tang, Suk Hwan Lim, Hui Chao
  • Patent number: 8411011
    Abstract: A method to generate control signals for a display-panel driver, which needs to receive a set of predetermined number of input signals so as to output a set of control signals. The method includes starting with a reset process. The display-panel driver receives a first part of the set of input signals through multiple input terminals. At least two of the input terminals are used as secondary input terminals, and at least two enabling input signals of different definitions are input, respectively. The enabling input signals internally enable a control signal generator to generate a second part of the set of input signals. The second part of the set of input signals and the first part of the set of input signals form a complete set of input signals. When a serial data of the input signals cannot satisfy the predetermined format, the method goes back to the reset process.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: April 2, 2013
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hsing-Hui Chao, Liang-Sheng Yang
  • Patent number: 8391593
    Abstract: Systems and methods according to the present invention provide techniques to automatically crop an image to a desired size. Automating the cropping process, while at the same time providing a high quality, cropped image, can be accomplished by employing a comprehensive approach that includes one or more of contextual cropping (e.g., basing cropping decisions on elements within the image to be cropped itself), training the cropping mechanism (e.g., using previously cropped versions of the same image or related images) and multiple operational modes (e.g., selecting one of a plurality of different cropping techniques for cropping a particular image).
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: March 5, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xiaofan Lin, Hui Chao, Jian Fan, Shridhar Diwan
  • Patent number: 8386957
    Abstract: In a method for dynamically scaling an original background layout having at least one element, an instruction to employ the original background layout in a new page that differs in at least one of size and aspect ratio from at least one of the size and aspect ratio of the original background layout is received. In addition, a type and a position of the at least one element is identified and one or more constraints are applied on at least one characteristic of the at least one element to modify the at least one characteristic of the at least one element for inclusion in the new page, in which the one or more constraints are based upon the type and position of the at least one element.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: February 26, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hui Chao, Xuemei Zhang