Patents by Inventor Zhi-Feng Li

Zhi-Feng Li 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).

  • Patent number: 11908239
    Abstract: The disclosure provides an image recognition network model training method, including: acquiring a first image feature corresponding to an image set; acquiring a first identity prediction result by using an identity classifier, and acquiring a first pose prediction result by using a pose classifier; obtaining an identity classifier according to the first identity prediction result and an identity tag, and obtaining a pose classifier according to the first pose prediction result and a pose tag; performing pose transformation on the first image feature by using a generator, to obtain a second image feature corresponding to the image set; acquiring a second identity prediction result by using the identity classifier, and acquiring a second pose prediction result by using the pose classifier; and training the generator.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: February 20, 2024
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Zheng Ge, Ze Qun Jie, Hao Wang, Zhi Feng Li, Di Hong Gong, Wei Liu
  • Publication number: 20230334905
    Abstract: A face recognition method includes: extracting a first identity feature of a first face image by using a feature extraction module, and extracting a second identity feature of a second face image by using the feature extraction module, wherein the feature extraction module is implemented by using a neural network, and pre-trained in a manner such that a correlation coefficient of training batch data is obtained based on an identity feature and an age feature of a sample face image in the training batch data, and decorrelated training of the identity feature and the age feature is performed on the feature extraction module based on the correlation coefficient; and performing a face recognition based on determining a similarity between faces in the first face image and the second face image according to the first identity feature and the second identity feature.
    Type: Application
    Filed: June 20, 2023
    Publication date: October 19, 2023
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Hao WANG, Di Hong Gong, Zhi Feng Li, Wei Liu
  • Patent number: 11763599
    Abstract: A face recognition method includes: extracting a first identity feature of a first face image by using a feature extraction module, and extracting a second identity feature of a second face image by using the feature extraction module, wherein the feature extraction module is implemented by using a neural network, and pre-trained in a manner such that a correlation coefficient of training batch data is obtained based on an identity feature and an age feature of a sample face image in the training batch data, and decorrelated training of the identity feature and the age feature is performed on the feature extraction module based on the correlation coefficient; and performing a face recognition based on determining a similarity between faces in the first face image and the second face image according to the first identity feature and the second identity feature.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: September 19, 2023
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Hao Wang, Di Hong Gong, Zhi Feng Li, Wei Liu
  • Publication number: 20220172462
    Abstract: An image processing method is provided. The image processing method includes: acquiring first second input images; extracting a content feature of the first input image; extracting an attribute feature of the second input image; performing feature fusion and mapping processing on the content feature of the first input image and the attribute feature of the second input image by using a feature transformation network to obtain a target image feature, the target image feature having the content feature of the first input image and the attribute feature of the second input image; and generating an output image based on the target image feature.
    Type: Application
    Filed: February 18, 2022
    Publication date: June 2, 2022
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Hao WANG, Zhi Feng LI, Wei LIU
  • Publication number: 20210264136
    Abstract: A face recognition method includes: extracting a first identity feature of a first face image by using a feature extraction module, and extracting a second identity feature of a second face image by using the feature extraction module, wherein the feature extraction module is implemented by using a neural network, and pre-trained in a manner such that a correlation coefficient of training batch data is obtained based on an identity feature and an age feature of a sample face image in the training batch data, and decorrelated training of the identity feature and the age feature is performed on the feature extraction module based on the correlation coefficient; and performing a face recognition based on determining a similarity between faces in the first face image and the second face image according to the first identity feature and the second identity feature.
    Type: Application
    Filed: May 7, 2021
    Publication date: August 26, 2021
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Hao Wang, Di Hong Gong, Zhi Feng Li, Wei Liu
  • Publication number: 20210264205
    Abstract: The disclosure provides an image recognition network model training method, including: acquiring a first image feature corresponding to an image set; acquiring a first identity prediction result by using an identity classifier, and acquiring a first pose prediction result by using a pose classifier; obtaining an identity classifier according to the first identity prediction result and an identity tag, and obtaining a pose classifier according to the first pose prediction result and a pose tag; performing pose transformation on the first image feature by using a generator, to obtain a second image feature corresponding to the image set; acquiring a second identity prediction result by using the identity classifier, and acquiring a second pose prediction result by using the pose classifier; and training the generator.
    Type: Application
    Filed: May 13, 2021
    Publication date: August 26, 2021
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Zheng Ge, Ze Qun Jie, Hao Wang, Zhi Feng Li, Di Hong Gong, Wei Liu
  • Patent number: 7390109
    Abstract: A light-emitting diode (LED) component includes a circuit board, an LED chip installed on the circuit board for emitting light, and a light direction-changing unit. The LED chip is composed of a plurality of light-emitting points. The unit has a covering surface covering the LED chip, and a reflecting surface having a plurality of reflecting points. A smallest included angle of a plurality of included angles between a normal line of at least one of the reflecting points and a plurality of connection lines passing through the reflecting point and the light-emitting points is larger than sin?1(1/n), where n is the reflection index of the light direction-changing unit.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: June 24, 2008
    Assignee: Lite-On Technology Corp.
    Inventors: Zhi-Feng Li, Yung-Fu Wu, Po-Hsien Lee
  • Publication number: 20060262538
    Abstract: A light-emitting diode (LED) component includes a circuit board, an LED chip installed on the circuit board for emitting light, and a light direction-changing unit. The LED chip is composed of a plurality of light-emitting points. The unit has a covering surface covering the LED chip, and a reflecting surface having a plurality of reflecting points. A smallest included angle of a plurality of included angles between a normal line of at least one of the reflecting points and a plurality of connection lines passing through the reflecting point and the light-emitting points is larger than sin?1(1/n), where n is the reflection index of the light direction-changing unit.
    Type: Application
    Filed: September 12, 2005
    Publication date: November 23, 2006
    Inventors: Zhi-Feng Li, Yung-Fu Wu, Po-Hsien Lee