Patents by Inventor Guofu Tan

Guofu Tan 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: 20180018505
    Abstract: A method for identifying skin region in an image includes: obtaining a target image; and for each of a plurality of pixels in the target image, calculating a probability that the pixel corresponds to skin captured in the image, wherein calculating the probability includes: calculating a first probability of said each pixel in the target image in a first color space the first probability being a probability that the pixel is skin in the first color space; calculating a second probability of said each pixel in the target image in a second color space, the second probability being a probability that the pixel is skin in the second color space; and determining a combined probability that said each pixel in the target image is skin, the combined probability that the pixel is skin being an arithmetic mean value of the first probability and the second probability of the pixel.
    Type: Application
    Filed: September 14, 2017
    Publication date: January 18, 2018
    Inventor: Guofu TAN
  • Publication number: 20180012066
    Abstract: Embodiments of the present invention provide a photograph processing method and system. The method includes: performing face detection on a photograph to obtain a detected human face; performing alignment on the detected human face, so as to obtain contour points of a left eye and a right eye of the detected human face; separately calculating a left eye area, being an area of the left eye, and a right eye area, being an area of the right eye, according to the contour points of the left eye and the right eye; performing stretching transformation on each pixel in the left eye area and the right eye area to generate a stretched left eye area and a stretched right eye area; and performing histogram equalization processing on the stretched left eye area and the stretched right eye area, so as to generate a processed photograph.
    Type: Application
    Filed: September 25, 2017
    Publication date: January 11, 2018
    Inventor: Guofu TAN
  • Publication number: 20180005017
    Abstract: Face model matrix training method, apparatus, and storage medium are provided. The method includes: obtaining a face image library, the face image library including k groups of face images, and each group of face images including at least one face image of at least one person, k>2, and k being an integer; separately parsing each group of the k groups of face images, and calculating a first matrix and a second matrix according to parsing results, the first matrix being an intra-group covariance matrix of facial features of each group of face images, and the second matrix being an inter-group covariance matrix of facial features of the k groups of face images; and training face model matrices according to the first matrix and the second matrix.
    Type: Application
    Filed: September 13, 2017
    Publication date: January 4, 2018
    Inventors: Shouhong DING, Jilin LI, Chengjie WANG, Feiyue HUANG, Yongjian WU, Guofu TAN
  • Publication number: 20170372459
    Abstract: The method provided in the present disclosure includes: obtaining an image photographed by a camera, and performing face detection on the image by using a face detection algorithm, to obtain a face pixel set from the image; positioning a facial feature contour mask over the face pixel set, to obtain a to-be-examined pixel set from the face pixel set, the to-be-examined pixel set including: a plurality of pixels within an image area except pixels masked by the facial feature contour mask in the face pixel set; performing edge contour detection on the to-be-examined pixel set, and extracting one or more blemish regions from the to-be-examined pixel set, to obtain a to-be-retouched pixel set, the to-be-retouched pixel set including: a plurality of pixels within an image area belonging to the blemish regions; and retouching all pixels in the to-be-retouched pixel set, to obtain a retouched pixel set.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Inventors: Guofu TAN, Jilin Li
  • Publication number: 20170364738
    Abstract: This application discloses a method and a terminal for detecting glasses in a face image. The method includes: obtaining a face image; determining a nose bridge region in the face image; detecting an image change in the nose bridge region to obtain an image change result of the nose bridge region; and determining whether there are glasses in the face image according to the image change result of the nose bridge region. The terminal for detecting glasses in a face image matches the method.
    Type: Application
    Filed: September 5, 2017
    Publication date: December 21, 2017
    Inventors: Chengjie WANG, Guofu TAN, Hui NI
  • Publication number: 20170364750
    Abstract: The present disclosure discloses a photo processing method and an apparatus for grouping photos into photo albums based on facial recognition results. The method includes: performing face detection on multiple photos, to obtain a face image feature set, each face image feature in the face image feature set corresponding to one of the multiple photos; determining a face-level similarity for each pair of face image features in the face image feature set; determining a photo-level similarity between each pair of photos in the multiple photos in accordance with their associated face-level similarities; generating a photo set for each target photo in the multiple photos, wherein any photo-level similarity between the target photo and another photo in the photo set exceeds a predefined photo-level threshold; and generating a label for each photo set using photographing location and photographing time information associated with the photos in the photo set.
    Type: Application
    Filed: September 1, 2017
    Publication date: December 21, 2017
    Inventor: Guofu TAN
  • Publication number: 20170295177
    Abstract: An identity verification method performed at a terminal includes: displaying and/or playing in an audio form action guide information selected from a preset action guide information library, and collecting a corresponding set of action images within a preset time window; performing matching detection on the collected set of action images and the action guide information, to obtain a living body detection result indicating whether a living body exists in the collected set of action images; according to the living body detection result that indicates that a living body exists in the collected set of action images: collecting user identity information and performing verification according to the collected user identity information, to obtain a user identity information verification result; and determining the identity verification result according to the user identity information verification result.
    Type: Application
    Filed: June 23, 2017
    Publication date: October 12, 2017
    Inventors: Feiyue HUANG, Jilin LI, Guofu TAN, Xiaoli JIANG, Dan WU, Junwu CHEN, Jianguo XIE, Wei GUO, Yihui LIU, Jiandong Xie
  • Publication number: 20170193287
    Abstract: The present disclosure discloses a living body identification method, an information generation method, and a terminal, and belongs to the field of biometric feature recognition. The method includes: providing lip language prompt information, the lip language prompt information including at least two target characters, and the at least two target characters being at least one of: characters of a same lip shape, characters of opposite lip shapes, or characters whose lip shape similarity is in a preset range; collecting at least two frame pictures; detecting whether lip changes of a to-be-identified object in the at least two frame pictures meet a preset condition, when the to-be-identified object reads the at least two target characters; and determining that the to-be-identified object is a living body, if the preset condition is met.
    Type: Application
    Filed: March 17, 2017
    Publication date: July 6, 2017
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Jilin LI, Chengjie WANG, Feiyue HUANG, Yongjian WU, Hui NI, Ruixin ZHANG, Guofu TAN
  • Publication number: 20160004117
    Abstract: The present invention provides a curvature-adjustable backplane and a liquid crystal display device having the backplane. The curvature-adjustable backplane includes a bottom plate (1). The bottom plate (1) is made of a material of thermal bimetal. The bottom plate (1) includes a plurality of openings (11) formed therein to extend in a lengthwise direction or a widthwise direction thereof, whereby the plurality of openings (11) helps increase a localized length-to-width ratio (L1/W1) of the bottom plate (1) so that when the curvature-adjustable backplane undergoes curving deformation, the extent of curving thereof in a lengthwise direction of the openings is far greater than the extent of curving thereof in a widthwise direction of the openings to realize precise adjustment of the curvature of the backplane and help release the stress of the backplane resulting from deformation and thus making the deformation of the backplane easy.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 7, 2016
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventors: Yajun Yu, Yuchun Hsiao, Guofu Tan, Chengling Lv