Patents by Inventor Le Yuan

Le Yuan 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: 12333694
    Abstract: This application provides an image processing method, including: adaptively determining at least one interpolation point based on feature information or dynamic metadata of a to-be-processed image, and determining the at least one interpolation point and a modified spline curve that passes through the at least one interpolation point, where the modified spline curve includes at least one of a linear spline curve or a cubic spline curve; and performing tone mapping on the to-be-processed image based on a modified tone mapping curve, where the modified tone mapping curve includes at least a part of an initial tone mapping curve and the modified spline curve. According to the method provided in this application, the tone mapping curve can be adaptively modified based on a scene requirement, so that images in various scenes can have a good display effect.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: June 17, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Quanhe Yu, Weiwei Xu, Hu Chen, Dongsheng Wu, Le Yuan
  • Publication number: 20250126326
    Abstract: A display method, system and device relating to the field of image processing technologies are provided for audience who can obtain global information on a sports field, so as to help determine a game situation in a timely manner and enhance a sense of participation, thereby providing better visual experience for the audience and improving viewing effect. In addition, the method can provide more information that the audience is interested in. In the method, a display side device receives first data from a capturing side device, and displays a first interface based on the first data, wherein the first interface includes a preset layer and a radar map superimposed on a specified area of the preset layer, the preset layer is obtained based on a preset viewpoint image of a target scene, and the radar map indicates location information of a plurality of target objects in the target scene.
    Type: Application
    Filed: December 26, 2024
    Publication date: April 17, 2025
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jia Hao, Le Yuan, Peng Wang
  • Patent number: 12230242
    Abstract: Provided are a sound gathering device for voiceprint monitoring and a preparation method. The sound gathering device is a cone structure and includes a front end portion (1) and a rear end portion (2), the front end portion (1) is trumpet-shaped, an inner wall surface of the front end portion (1) is present a pattern array of a microstructure (3), and the microstructure (3) presenting the pattern array is formed through laser etching. A sound wave frequency monitored by the sound gathering device is 50 Hz˜10 kHz, and a sound wave enters the sound gathering device from an entrance of the front end portion (1), is reflected through the pattern array of the microstructure (3) on the inner wall surface of the front end portion (1), and is transmitted from an exit of the rear end portion (2), and a sound pressure of the exit of the rear end portion (2) is 4 times˜8 times a sound pressure of the entrance of the front end portion (1).
    Type: Grant
    Filed: July 20, 2023
    Date of Patent: February 18, 2025
    Assignee: State Grid Jiangsu Taizhou Power Supply Company
    Inventors: Yong Li, Ting Chen, Ling Ju, Jijing Yin, Ze Zhang, Xingchun Xu, Beibei Weng, Zhenguo Chuai, Yan Wu, Li Chen, Yang Cheng, Tianyu He, Le Yuan, Jie Qian, Debao Tang, Yanquan Zhu, Anqi Ding, Kaiming Bian, Wen Chen, Wanjian Hu, Hongbo Dai, Weijun Shi
  • Patent number: 12217404
    Abstract: An image processing method includes determining a format of first image data; determining a first interface mode that is currently used, where the first interface mode is determined when the processing device establishes physical connections with a display device, and the format of the first image data format is not supported by the first interface mode; and processing the first image data based on the first interface mode to generate second image data, where a format of the second image data is supported by the first interface mode. Image data will be processed when an image format of the image data is not supported by the first interface mode.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: February 4, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Le Yuan, Zheng Wang, Xiumei Yan
  • Publication number: 20240428773
    Abstract: Provided are a sound gathering device for voiceprint monitoring and a preparation method. The sound gathering device is a cone structure and includes a front end portion (1) and a rear end portion (2), the front end portion (1) is trumpet-shaped, an inner wall surface of the front end portion (1) is present a pattern array of a microstructure (3), and the microstructure (3) presenting the pattern array is formed through laser etching. A sound wave frequency monitored by the sound gathering device is 50 Hz˜10 kHz, and a sound wave enters the sound gathering device from an entrance of the front end portion (1), is reflected through the pattern array of the microstructure (3) on the inner wall surface of the front end portion (1), and is transmitted from an exit of the rear end portion (2), and a sound pressure of the exit of the rear end portion (2) is 4 times˜8 times a sound pressure of the entrance of the front end portion (1).
    Type: Application
    Filed: July 20, 2023
    Publication date: December 26, 2024
    Inventors: Yong LI, Ting CHEN, Ling JU, Jijing YIN, Ze ZHANG, Xingchun XU, Beibei WENG, Zhenguo CHUAI, Yan WU, Li CHEN, Yang CHENG, Tianyu HE, Le YUAN, Jie QIAN, Debao TANG, Yanquan ZHU, Anqi DING, Kaiming BIAN, Wen CHEN, Wanjian HU, Hongbo DAI, Weijun SHI
  • Patent number: 11750785
    Abstract: A video signal processing method which includes: performing luminance mapping and color gamut conversion after color space conversion and non-linear space-to-linear space conversion are performed on a to-be-processed video signal, performing linear space-to-non-linear space conversion and color space conversion on the color gamut-converted signal, and then performing saturation mapping on the converted signal, to obtain a video signal that matches a format supported by a display device, so that the to-be-processed video signal can be correctly displayed on the display device.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: September 5, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Le Yuan, Zheng Wang, Renjian Wu, Fang Huang
  • Publication number: 20220237754
    Abstract: This application provides an image processing method, including: adaptively determining at least one interpolation point based on feature information or dynamic metadata of a to-be-processed image, and determining the at least one interpolation point and a modified spline curve that passes through the at least one interpolation point, where the modified spline curve includes at least one of a linear spline curve or a cubic spline curve; and performing tone mapping on the to-be-processed image based on a modified tone mapping curve, where the modified tone mapping curve includes at least a part of an initial tone mapping curve and the modified spline curve. According to the method provided in this application, the tone mapping curve can be adaptively modified based on a scene requirement, so that images in various scenes can have a good display effect.
    Type: Application
    Filed: April 15, 2022
    Publication date: July 28, 2022
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Quanhe YU, Weiwei XU, Hu CHEN, Dongsheng WU, Le YUAN
  • Patent number: 11375154
    Abstract: A method and an apparatus for processing a high dynamic range (HDR) video including a subtitle, where the method includes: encapsulating HDR video data into a video data frame that matches a transmission interface; encapsulating subtitle information into a subtitle information frame that matches the transmission interface; and separately transmitting the video data frame and the subtitle information frame to a display device through the transmission interface, where the video data frame and the subtitle information frame are packets in two types of formats. According to the method provided in this application, content and subtitle information of a dynamic metadata HDR video are separately transmitted to the display device. In this way, the display device can obtain the separated video content and subtitle information, and then separately perform corresponding processing on the HDR video and a subtitle.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: June 28, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Le Yuan, Zheng Wang, Renjian Wu, Fang Huang
  • Publication number: 20220148141
    Abstract: An image processing method includes determining a format of first image data; determining a first interface mode that is currently used, where the first interface mode is determined when the processing device establishes physical connections with a display device, and the format of the first image data format is not supported by the first interface mode; and processing the first image data based on the first interface mode to generate second image data, where a format of the second image data is supported by the first interface mode. Image data will be processed when an image format of the image data is not supported by the first interface mode.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Inventors: Le Yuan, Zheng Wang, Xiumei Yan
  • Patent number: 11317071
    Abstract: A video signal processing method includes obtaining a first linear luminance signal based on a first linear red green blue (RGB) signal corresponding to a video signal, converting the first linear luminance signal into a first non-linear luminance signal, performing a piecewise luminance mapping on the first non-linear luminance signal to obtain a second non-linear luminance signal, converting the second non-linear luminance signal into a second linear luminance signal, calculating a luminance gain between the second linear luminance signal and the first linear luminance signal, and obtaining, based on a product of the luminance gain and the first linear RGB signal, an RGB display signal corresponding to the video signal.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: April 26, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zheng Wang, Le Yuan, Renjian Wu, Fang Huang
  • Patent number: 11263730
    Abstract: An image processing method determining a format of first image data, determining a first interface mode that is currently used, where the first interface mode is determined when the processing device establishes physical connections with a display device, and the format of the first image data format is not supported by the first interface mode, and processing, the first image data based on the first interface mode to generate second image data, where a format of the second image data is supported by the first interface mode. Image data will be processed when an image format of the image data is not supported by the first interface mode.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: March 1, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Le Yuan, Zheng Wang, Xiumei Yan
  • Publication number: 20210152801
    Abstract: A video signal processing method includes obtaining a first linear luminance signal based on a first linear red green blue (RGB) signal corresponding to a video signal, converting the first linear luminance signal into a first non-linear luminance signal, performing a piecewise luminance mapping on the first non-linear luminance signal to obtain a second non-linear luminance signal, converting the second non-linear luminance signal into a second linear luminance signal, calculating a luminance gain between the second linear luminance signal and the first linear luminance signal, and obtaining, based on a product of the luminance gain and the first linear RGB signal, an RGB display signal corresponding to the video signal.
    Type: Application
    Filed: December 28, 2020
    Publication date: May 20, 2021
    Inventors: Zheng Wang, Le Yuan, Renjian Wu, Fang Huang
  • Publication number: 20210120217
    Abstract: Example video signal processing methods and apparatus are described. One example method includes performing chrominance compensation on a to-be-processed video signal based on a saturation adjustment factor corresponding to an initial luminance value of the to-be-processed video signal. As such, a color that is of the video signal obtained after chrominance compensation and that is perceived by human eyes is closer to a color of the video signal obtained before luminance mapping.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Zheng WANG, Le YUAN, Renjian WU, Fang HUANG
  • Publication number: 20210092342
    Abstract: A video signal processing method which includes: performing luminance mapping and color gamut conversion after color space conversion and non-linear space-to-linear space conversion are performed on a to-be-processed video signal, performing linear space-to-non-linear space conversion and color space conversion on the color gamut-converted signal, and then performing saturation mapping on the converted signal, to obtain a video signal that matches a format supported by a display device, so that the to-be-processed video signal can be correctly displayed on the display device.
    Type: Application
    Filed: December 3, 2020
    Publication date: March 25, 2021
    Inventors: Le YUAN, Zheng WANG, Renjian WU, Fang HUANG
  • Publication number: 20210084257
    Abstract: A method and an apparatus for processing a high dynamic range (HDR) video including a subtitle, where the method includes: encapsulating HDR video data into a video data frame that matches a transmission interface; encapsulating subtitle information into a subtitle information frame that matches the transmission interface; and separately transmitting the video data frame and the subtitle information frame to a display device through the transmission interface, where the video data frame and the subtitle information frame are packets in two types of formats. According to the method provided in this application, content and subtitle information of a dynamic metadata HDR video are separately transmitted to the display device. In this way, the display device can obtain the separated video content and subtitle information, and then separately perform corresponding processing on the HDR video and a subtitle.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 18, 2021
    Inventors: Le Yuan, Zheng Wang, Renjian Wu, Fang Huang
  • Patent number: 10897594
    Abstract: An apparatus for use in a high-definition media interface (HDMI) source device includes an HDMI interface for transmitting video data and metadata to a sink device. The apparatus is configured to encode the metadata in an auxiliary video information (AVI) information frame (InfoFrame). The apparatus is further configured to transmit the AVI InfoFrame during a frame synchronous transmission window (FSTW) of the video data, wherein the FSTW begins during a video blanking interval (VBI) of the video data, on a first video blank pixel that immediately follows a last active video pixel of a preceding video frame or video field and ends a predetermined number of video lines after a start of the VBI.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: January 19, 2021
    Assignee: Futurewei Technologies, Inc.
    Inventors: Jiong Huang, Laurence A. Thompson, Le Yuan, Hua Long, Yong Su, Zhigui Wei, Feng Wang
  • Publication number: 20200275052
    Abstract: An apparatus for use in a high-definition media interface (HDMI) source device includes an HDMI interface for transmitting video data and metadata to a sink device. The apparatus is configured to encode the metadata in an auxiliary video information (AVI) information frame (InfoFrame). The apparatus is further configured to transmit the AVI InfoFrame during a frame synchronous transmission window (FSTW) of the video data, wherein the FSTW begins during a video blanking interval (VBI) of the video data, on a first video blank pixel that immediately follows a last active video pixel of a preceding video frame or video field and ends a predetermined number of video lines after a start of the VBI.
    Type: Application
    Filed: October 30, 2019
    Publication date: August 27, 2020
    Applicant: Futurewei Technologies, Inc.
    Inventors: Jiong Huang, Laurence A. Thompson, Le Yuan, Hua Long, Yong Su, Zhigui Wei, Feng Wang
  • Publication number: 20200043150
    Abstract: An image processing method determining a format of first image data, determining a first interface mode that is currently used, where the first interface mode is determined when the processing device establishes physical connections with a display device, and the format of the first image data format is not supported by the first interface mode, and processing, the first image data based on the first interface mode to generate second image data, where a format of the second image data is supported by the first interface mode. Image data will be processed when an image format of the image data is not supported by the first interface mode.
    Type: Application
    Filed: October 8, 2019
    Publication date: February 6, 2020
    Inventors: Le Yuan, Zheng Wang, Xiumei Yan
  • Publication number: 20190356881
    Abstract: An apparatus for use in a high-definition media interface (HDMI) source device includes an HDMI interface for transmitting video data and metadata to a sink device. The apparatus is configured to encode the metadata in an auxiliary video information (AVI) information frame (InfoFrame). The apparatus is further configured to transmit the AVI InfoFrame during a frame synchronous transmission window (FSTW) of the video data, wherein the FSTW begins during a video blanking interval (VBI) of the video data, on a first video blank pixel that immediately follows a last active video pixel of a preceding video frame or video field and ends a predetermined number of video lines after a start of the VBI.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 21, 2019
    Inventors: Jiong Huang, Laurence A. Thompson, Le Yuan, Hua Long, Yong Su, Zhigui Wei, Feng Wang
  • Patent number: 10477141
    Abstract: An apparatus for use in a high-definition media interface (HDMI) source device includes an HDMI interface for transmitting video data and metadata to a sink device. The apparatus is configured to encode the metadata in an auxiliary video information (AVI) information frame (InfoFrame). The apparatus is further configured to transmit the AVI InfoFrame during a frame synchronous transmission window (FSTW) of the video data, wherein the FSTW begins during a video blanking interval (VBI) of the video data, on a first video blank pixel that immediately follows a last active video pixel of a preceding video frame or video field and ends a predetermined number of video lines after a start of the VBI.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: November 12, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Jiong Huang, Laurence A. Thompson, Le Yuan, Hua Long, Yong Su, Zhigui Wei, Feng Wang