Patents by Inventor Chenguang Liu

Chenguang Liu 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: 20250069499
    Abstract: A method for predicting traffic flow or a travel time, includes: obtaining navigation route data; obtaining, according to the navigation route data, navigation flow of a road within a prediction time period; obtaining real-time traffic flow, a real-time travel time, past traffic flow, and a past travel time of the road; and training a neural network with the real-time travel time, the past travel time, the real-time traffic flow, the past traffic flow, and the navigation flow of the road to obtain predicted traffic flow or a predicted travel time of the road within the prediction time period.
    Type: Application
    Filed: November 11, 2024
    Publication date: February 27, 2025
    Inventors: Shenkun XU, Rui DAI, Shuai LI, Chenguang JI, Kaikui LIU
  • Publication number: 20250061277
    Abstract: The disclosure herein describes using a deep learning model to identify topic segments of a communication transcript. A communication transcript including a set of utterances is obtained. The set of utterances is divided into a plurality of utterance windows, wherein each utterance window of the plurality of utterance windows includes a different subset of utterances of the set of utterances, and wherein each utterance of the set of utterances is included in at least one utterance window of the plurality of utterance windows. For each utterance window of the plurality of utterance windows, each utterance in the utterance window is classified as a topic boundary or a non-boundary using a deep learning model. Topic segments of the communication transcript are identified based on utterances of the set of utterances that are classified as topic boundaries. A communication transcript summary is generated using the communication transcript and the identified topic segments.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 20, 2025
    Inventors: Chenguang ZHU, Yang LIU, David Peace HUNG, Nanshan ZENG
  • Publication number: 20250044096
    Abstract: It discloses an atmospheric polarized light orientation method using a solar azimuth region, provides an angle of polarization (AOP) vision-modulated model in a pixel frame, and gives an orientation strategy utilizing the solar azimuth region; a horizontal attitude angle is introduced into the AOP in the pixel frame, and orientation is implemented by utilizing a separation point and a principal point of photograph; specifically, a seed line extraction algorithm is given to update the solar azimuth in real time, a morphological expression and an AOP expression of the solar azimuth are fused for an optimum estimation to the solar azimuth, and ultimately the orientation is achieved by using an external sensor such as an inertial navigation system to input the horizontal attitude angle.
    Type: Application
    Filed: December 7, 2023
    Publication date: February 6, 2025
    Applicant: NORTH UNIVERSITY OF CHINA
    Inventors: Jun LIU, Xindong WU, Chong SHEN, Huiliang CAO, Jun TANG, Chenguang WANG
  • Patent number: 12217005
    Abstract: The present disclosure provides an information processing method and apparatus, a terminal, and a storage medium. The information processing method, comprising: in response to a first operation event for a target entity word representing a project, a product, or a task in a work communication in displayed content, acquiring target entity word information associated with the target entity word, wherein the target entity word information comprises first information and second information, the first information comprising the meaning of the target entity word, and the second information comprising a communication identifier of a communication group or contact associated with the target entity word; and displaying the target entity word information.
    Type: Grant
    Filed: September 25, 2023
    Date of Patent: February 4, 2025
    Assignee: Beijing Zitiao Network Technology Co., Ltd.
    Inventors: Ji Wen, Wenhai Yang, Fangyuan Zeng, Chaolin Huang, Feng Wang, Dongxue Wu, Yuxin Jing, Xiao Wang, Chenghao Wang, Shuwei Liu, Hongyun Zhang, Chenguang Wang, Xing Shi, Xingguang Fan
  • Patent number: 12216264
    Abstract: Disclosed are a dark-field confocal microscopic measurement apparatus and method based on vortex dichroism. The apparatus includes an array vortex light generation module, an array vortex light illumination module and an array dark-field confocal detection module; an array vortex wave plate of the array vortex light generation module generates vortex light to illuminate a sample of the array vortex light illumination module; and the array dark-field confocal detection module extracts scattering signals, and identifies differences between scattering signals collected under the illumination of opposite-order vortex light.
    Type: Grant
    Filed: June 11, 2024
    Date of Patent: February 4, 2025
    Assignee: Harbin Institute of Technology
    Inventors: Jian Liu, Chenguang Liu, Zijie Hua
  • Patent number: 12211434
    Abstract: One embodiment provides a computer-implemented method that includes adaptively adjusting a detection time interval based on stationary region type of one or more stationary regions and a scene length in a video. The method further includes tracking pixels of the one or more stationary regions from a number of previous frames to a current frame in the video in real-time. A minimum and a maximum of max-Red-Green-Blue (MaxRGB) pixel values are extracted from each frame in a scene of the video as minimum and a maximum temporal feature maps for representing pixel variance over time. Segmentation and block matching are applied on the minimum and maximum temporal feature maps to detect the stationary region type.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: January 28, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joonsoo Kim, Kamal Jnawali, Chenguang Liu
  • Patent number: 12203867
    Abstract: Provided are a dark-field confocal microscopy measurement apparatus and method.
    Type: Grant
    Filed: August 13, 2024
    Date of Patent: January 21, 2025
    Assignee: Harbin Institute of Technology
    Inventors: Jian Liu, Chenguang Liu, Zijie Hua, Kang Gu
  • Patent number: 12204081
    Abstract: This application relates to the technical field of confocal microscopy measurement and provides a dark-field confocal microscopy measurement apparatus and method based on time-varying fractional-order vortex demodulation. The apparatus includes a time-varying modulated illumination module, an optical scanning module, a signal collection and demodulation module, a function generator, and a sample platform. The function generator is separately connected with. The time-varying modulated illumination module is configured to emit fractional-order vortex light to the optical scanning module. The optical scanning module is configured to transmit the fractional-order vortex light to the to-be-measured sample on the sample platform and transmit a reflected light signal to the signal collection and demodulation module.
    Type: Grant
    Filed: August 22, 2024
    Date of Patent: January 21, 2025
    Assignee: Harbin Institute of Technology
    Inventors: Jian Liu, Chenguang Liu, Zijie Hua, Xiaoyu You
  • Publication number: 20250021764
    Abstract: The present disclosure provides an information processing method and apparatus, a terminal, and a storage medium. The information processing method, comprising: displaying content in an interface, wherein the content comprises a target entity word; in response to a first operation event performed by a user on the target entity word, obtaining target entity word information, wherein the target entity word information comprises first information and second information, the first information comprises a meaning of the target entity word, and the second information comprises a communication identifier of a communication group or a contact person; displaying the first information and the second information; in response to a second operation event on the communication identifier of the communication group or the contact person, perform at least one of the following steps: adding the user to the communication group, entering the communication group or entering a chat interface with the contact person.
    Type: Application
    Filed: September 26, 2024
    Publication date: January 16, 2025
    Inventors: Ji WEN, Wenhai YANG, Fangyuan ZENG, Chaolin HUANG, Feng WANG, Dongxue WU, Yuxin JING, Xiao WANG, Chenghao WANG, Shuwei LIU, Hongyun ZHANG, Chenguang WANG, Xing SHI, Xingguang FAN
  • Patent number: 12196686
    Abstract: This application provides a vortex dichroism dark-field confocal microscopy measurement apparatus based on spiral transformation. An opposite-order vortex beam generation module is configured to generate a mixed vortex beam, a sample scanning module is configured to irradiate a scanning position of a to-be-measured sample by using the mixed vortex beam, to obtain a sample reflection beam. A spiral transformation module is configured to spatially separate the sample reflection beam to obtain spatially separated beams. A multi-order detection module is configured to detect the spatially separated beams to obtain a vortex dichroism signal at the scanning position. When the scanning position of the to-be-measured sample is defect-free, the vortex dichroism signal is zero. Conversely, when defects are present at the scanning position, the vortex dichroism signal is non-zero. The positive and negative the vortex dichroism signal respectively correspond to the left-handed and right-handed chirality of the defects.
    Type: Grant
    Filed: August 23, 2024
    Date of Patent: January 14, 2025
    Assignee: Harbin Institute of Technology
    Inventors: Jian Liu, Chenguang Liu, Zijie Hua, Xiaoyu You
  • Patent number: 12173252
    Abstract: The present invention relates to a pre-hydrotreatment and purification method for waste lubricating oil, the method comprising the following steps: mechanical impurities are removed from waste lubricating oil, and then the oil is subjected to flash distillation to separate free water and a portion of light hydrocarbons; a bottom product of the flash distillation column is mixed with hydrogen and a self-sulfurizing oil-soluble transition metal catalyst, and then enters a slurry bed reactor for pre-hydrotreatment; a gas product obtained by performing separation on a reaction effluent is subjected to adsorption purification and then enters a hydrogen recycle compressor for cyclic use; a liquid product obtained by performing separation on a reaction effluent is subjected to hydrocyclone separation and solvent washing to remove solid residue, and finally a purified lubricating oil component is obtained.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: December 24, 2024
    Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
    Inventors: Bin Liu, Yongming Chai, Chenguang Liu, Yuan Pan, Yichuan Li, Kongyuan Zhang, Yunqi Liu
  • Patent number: 12111453
    Abstract: Disclosed are a differential dark-field confocal microscopic measurement apparatus and method based on a polarized vector light beam. The apparatus includes a vector polarized illumination light generation module, a light beam scanning illumination module and a differential dark-field confocal imaging module; a half wave plate and a vortex wave plate are regulated to generate radially polarized signal light and azimuthally polarized signal light respectively, and an acousto-optic modulator is controlled to modulate light beams into a pulse form, so that the radially polarized signal light and the azimuthally polarized signal light alternately illuminate during the same period, both of which have a time occupation ratio of 50%, separately.
    Type: Grant
    Filed: January 26, 2024
    Date of Patent: October 8, 2024
    Assignee: Harbin Institute of Technology
    Inventors: Jian Liu, Chenguang Liu, Chongliang Zou, Zijie Hua
  • Publication number: 20240329377
    Abstract: Disclosed are a dark-field confocal microscopic measurement apparatus and method based on vortex dichroism. The apparatus includes an array vortex light generation module, an array vortex light illumination module and an array dark-field confocal detection module; an array vortex wave plate of the array vortex light generation module generates vortex light to illuminate a sample of the array vortex light illumination module; and the array dark-field confocal detection module extracts scattering signals, and identifies differences between scattering signals collected under the illumination of opposite-order vortex light.
    Type: Application
    Filed: June 11, 2024
    Publication date: October 3, 2024
    Inventors: Jian Liu, Chenguang Liu, Zijie Hua
  • Publication number: 20240310613
    Abstract: Disclosed are a differential dark-field confocal microscopic measurement apparatus and method based on a polarized vector light beam. The apparatus includes a vector polarized illumination light generation module, a light beam scanning illumination module and a differential dark-field confocal imaging module; a half wave plate and a vortex wave plate are regulated to generate radially polarized signal light and azimuthally polarized signal light respectively, and an acousto-optic modulator is controlled to modulate light beams into a pulse form, so that the radially polarized signal light and the azimuthally polarized signal light alternately illuminate during the same period, both of which have a time occupation ratio of 50%, separately.
    Type: Application
    Filed: January 26, 2024
    Publication date: September 19, 2024
    Inventors: Jian Liu, Chenguang Liu, Chongliang Zou, Zijie Hua
  • Patent number: 12087249
    Abstract: A method includes modeling, by a computing device, color saturation variations of different hues in a working color space with one or more properties of responses of a human vision system (HVS) to color stimulus. The computing device further generates one or more color saturation variation models based on the responses of the HVS to color stimulus.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: September 10, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Su, Chenguang Liu, Pradeep Nagesh
  • Publication number: 20240279452
    Abstract: Disclosed are a high temperature blasting resistance isotactic polybutene alloy and a preparation method thereof. The isotactic polybutene alloy of the present invention comprises 1-40% of isotactic polypropylene in parts by mass, 0.1-10% of a polypropylene-polybutene-1 block copolymer in parts by mass, 35-95.9% of isotactic polybutene-1 of a medium molecular weight in parts by mass, and 3-15% of isotactic polybutene-1 of a high molecular weight in parts by mass. The alloy material is prepared using a method of segmented polymerization of propylene polymerization, high hydrogen content butene polymerization and low hydrogen content butene polymerization. The prepared isotactic polybutene alloy has excellent high temperature blasting resistance and high temperature hydrostatic pressure, is high in vicat softening temperature, and is applicable to pressure pipes.
    Type: Application
    Filed: April 29, 2024
    Publication date: August 22, 2024
    Applicant: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Aihua HE, Chenguang LIU, Huafeng SHAO
  • Patent number: 12067957
    Abstract: One embodiment provides a method comprising determining a first representation of a source gamut of an input content in a first (2D) device-independent color space, determining a second representation of a target gamut of a display device in a second 2D device-independent color space, and determining a color transition protection zone (TPZ) based on the source gamut and the target gamut. The method further comprises utilizing a color gamut mapping (CGM) module to perform, based on the TPZ, linear color gamut compression from the first 2D device-independent color space to the second 2D device-independent color space if the target gamut is narrower than the source gamut. The method further comprises utilizing the same CGM module to perform, based on the TPZ, linear color gamut extension from the first 2D device-independent color space to the second 2D device-independent color space if the target gamut is wider than the source gamut.
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: August 20, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Su, Chenguang Liu, Pradeep Nagesh
  • Publication number: 20240275930
    Abstract: One embodiment provides a method comprising receiving an input content, and receiving ambient contextual data indicative of one or more ambient lighting conditions of an environment including a display device. The input content has corresponding metadata that at least partially represents a creative intent indicative of how the input content is intended to be viewed. The method further comprises adaptively correcting the input content based on the ambient contextual data to preserve the creative intent, and providing the corrected input content to the display device for presentation. The adaptively correcting comprises applying automatic white balancing to the input content to correct color tone of the input content.
    Type: Application
    Filed: April 19, 2024
    Publication date: August 15, 2024
    Inventors: Dung Trung Vo, Chenguang Liu, Chang Su, McClain C. Nelson, Madhu Athreya, William Mandel, Soojung Hyun
  • Patent number: 12051364
    Abstract: One embodiment provides a computer-implemented method that includes receiving region information from a stationary region detection process for a video. A processor performs a flat region ghosting artifact removal process that updates the region information with a flat region indicator utilizing the region information and the video. The processor further performs a region based luminance reduction process utilizing the updated region information with the flat region indicator for display ghosting artifact removal and burn-in protection.
    Type: Grant
    Filed: May 4, 2023
    Date of Patent: July 30, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kamal Jnawali, Joonsoo Kim, Chenguang Liu, Chang Su
  • Publication number: 20240221134
    Abstract: One embodiment provides a computer-implemented method that includes employing a de-banding process based on image statistics in a dynamic range conversion system, including high dynamic range (HDR) to standard dynamic range (SDR) tone mapping (TM) process or SDR-to-HDR inverse tone mapping (ITM) process. A computing device performs the de-banding process in post-processing during a determination of one or more initial ITM explicit polynomial curve coefficients. One or more parameters of a weighing function of the one or more initial ITM explicit curve coefficients are utilized as one or more controlling knots for balancing a de-banding effect and preserving local detail.
    Type: Application
    Filed: October 27, 2023
    Publication date: July 4, 2024
    Inventors: Tingting Zhao, Chang Su, Chenguang Liu