Patents by Inventor Nan Wei

Nan Wei 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: 12592025
    Abstract: This application describes a rendering method and apparatus, a device, and a storage medium. The method comprises: determining a texture element in a to-be-rendered scene, and determining a target spatial directional tree corresponding to the to-be-rendered scene. The target spatial directional tree represents an incident ray distribution corresponding to the texture element in the to-be-rendered scene. The method further comprises determining, based on the target spatial directional tree, a scene spatial region for the texture element, determining the incident ray distribution corresponding to the texture element based on a quantity of light paths and light energy in the scene spatial region; and determining a light rendering result corresponding to the texture element based on an incident ray corresponding to the incident ray distribution.
    Type: Grant
    Filed: October 13, 2023
    Date of Patent: March 31, 2026
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Chao Li, Yuanheng Li, Lan Gao, Nan Wei
  • Patent number: 12469200
    Abstract: A method for processing a shadow texture can compute data concurrently to improve computation density, reduce data transmission batches, and improve shadow texture processing efficiency. Model data and light source information of at least one object in a virtual scene is acquired. A shadow with a first resolution corresponding to each object is acquired. A second resolution is determined based on the model data of each object. A shadow edge formed by each object under the influence of the light source information is determined in parallel by utilizing rasterized pixels of the model data. The distance from the rasterized pixels to the shadow edge corresponding to each object is computed, and the corresponding distance data is stored.
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: November 11, 2025
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Huabing Xu, Shun Cao, Yuanheng Li, Nan Wei
  • Patent number: 12293451
    Abstract: This application relates to an illumination rendering method performed by a computer device. The method include: determining light source change information when a light source changes in a virtual scene; determining a current light source projection coefficient corresponding to the changed light source according to the light source change information; determining an indirect illumination value of a target pixel point in the virtual scene according to a radiance transfer parameter corresponding to the target pixel point in the virtual scene and the current light source projection coefficient; determining a direct illumination value corresponding to the target pixel point under the changed light source; and performing illumination rendering on the target pixel point according to the direct illumination value and the indirect illumination value.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: May 6, 2025
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Huabing Xu, Shun Cao, Yuanheng Li, Nan Wei
  • Patent number: 12266045
    Abstract: This application discloses an image rendering method and apparatus, an electronic device, and a storage medium, and belongs to the field of image processing technologies. The method includes: acquiring a lightmap of a target three-dimensional model in response to a light rendering instruction; acquiring a seam edge of the target three-dimensional model; determining, in the lightmap, a target pixel corresponding to the seam edge; and updating an initial pixel value of the target pixel in the lightmap to obtain a repaired lightmap. In this application, the seam edge of the target three-dimensional model is automatically identified, and the pixel value of the target pixel is automatically updated, so that automatic recognition and automatic repair of a seam problem can be completed by one click, thereby avoiding a waste of labor resources for troubleshooting and repairing the seam problem, reducing image rendering time, and improving image rendering efficiency.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: April 1, 2025
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Shun Cao, Huabing Xu, Yuanheng Li, Nan Wei, Xiaochun Cui, Congbing Li
  • Patent number: 12229879
    Abstract: An image rendering method and a related apparatus, terminal and storage medium that: obtains a low-resolution first shadow map and a high-resolution second shadow map of a target virtual object, determines a first texel range of each texel and a central point in the first shadow map, performs scaling processing, based on the central point, on the first texel range by using a scaling coefficient to obtain a second texel range, and performs shadow rendering on the target virtual object according to the second texel range. A shadow map-based image rendering process is implemented, and since a calculation amount of determining a map position according to a low-resolution map is relatively small, image rendering efficiency is improved. Additionally, rendering of a high-resolution shadow map is completed, generation of edge aliasing is avoided, and an image rendering effect is improved.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: February 18, 2025
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Huabing Xu, Shun Cao, Nan Wei, Xiaochun Cui, Congbing Li, Rongxin Zhou, Wenyan Li
  • Publication number: 20240331257
    Abstract: This application describes an animation data generation method and apparatus, and a related product, which may be applied to scenarios such as a cloud technology, artificial intelligence (AI), intelligent transportation, assisted driving, digital human, virtual human, gaming, virtual reality, and extended reality (XR). Features of a virtual object in a virtual scene are obtained, and animation data of the virtual object is generated through a trained neural network based on the features. The use of the neural network omits storage of massive data into an internal memory and query of the massive data for a matched animation during generation of the animation data, and only requires storage of weight data related to the neural network in advance. Therefore, only a small internal memory is occupied, thereby avoiding problems such as large internal memory occupation and poor query performance during generation of the animation data.
    Type: Application
    Filed: June 11, 2024
    Publication date: October 3, 2024
    Inventors: Shun CAO, Hua KOU, Yifan CAO, Nan WEI, Yu WU, Congbing LI, Xiaochun CUI
  • Patent number: 12039662
    Abstract: A method and apparatus for recognizing a pixel point, an illumination rendering method and apparatus, an electronic device, and a storage medium, which is used to effectively detect a pixel point located in a shadow region, to improve the quality of lightmap rendering. The method includes: obtaining a lightmap of a target object in a target scene; determining, according to a distance between each adjacent pixel point of a pixel point in the lightmap and the pixel point, a coverage radius corresponding to the pixel point; and determining, by using the pixel point as a starting point, that when a ray emitted along at least one tangential direction of the pixel point intersects an unlighted surface of an object in the target scene and a length of the ray is the same as the coverage radius, the pixel point is located in the shadow region.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: July 16, 2024
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Shun Cao, Huabing Xu, Nan Wei, Xiaochun Cui, Congbing Li, Rongxin Zhou, Wenyan Li
  • Publication number: 20240054721
    Abstract: This application describes a rendering method and apparatus, a device, and a storage medium. The method comprises: determining a texture element in a to-be-rendered scene, and determining a target spatial directional tree corresponding to the to-be-rendered scene. The target spatial directional tree represents an incident ray distribution corresponding to the texture element in the to-be-rendered scene. The method further comprises determining, based on the target spatial directional tree, a scene spatial region for the texture element, determining the incident ray distribution corresponding to the texture element based on a quantity of light paths and light energy in the scene spatial region; and determining a light rendering result corresponding to the texture element based on an incident ray corresponding to the incident ray distribution.
    Type: Application
    Filed: October 13, 2023
    Publication date: February 15, 2024
    Inventors: Chao Li, Yuanheng Li, Lan Gao, Nan Wei
  • Publication number: 20230094867
    Abstract: In certain aspects, the disclosure relates to anti-idiotype antibodies and antigen-binding portions thereof that specifically bind a CD9B441 containing protein, e.g., an antibody or antigen-binding portions thereof. In some aspects, the anti-idiotype antibodies and antigen-binding portions of the present disclosure can be used in methods to detect and quantify cells expressing chimeric antigen receptors that include CD9B441.
    Type: Application
    Filed: May 26, 2022
    Publication date: March 30, 2023
    Inventors: Katharine D. Grugan, Christian R. Martinez, Nan Wei, Hong Mimi Zhou
  • Publication number: 20230076326
    Abstract: This application relates to an illumination rendering method performed by a computer device. The method include: determining light source change information when a light source changes in a virtual scene; determining a current light source projection coefficient corresponding to the changed light source according to the light source change information; determining an indirect illumination value of a target pixel point in the virtual scene according to a radiance transfer parameter corresponding to the target pixel point in the virtual scene and the current light source projection coefficient; determining a direct illumination value corresponding to the target pixel point under the changed light source; and performing illumination rendering on the target pixel point according to the direct illumination value and the indirect illumination value.
    Type: Application
    Filed: November 10, 2022
    Publication date: March 9, 2023
    Inventors: Huabing XU, Shun Cao, Yuanheng Li, Nan Wei
  • Publication number: 20230033319
    Abstract: A method for processing a shadow texture can compute data concurrently to improve computation density, reduce data transmission batches, and improve shadow texture processing efficiency. Model data and light source information of at least one object in a virtual scene is acquired. A shadow with a first resolution corresponding to each object is acquired. A second resolution is determined based on the model data of each object. A shadow edge formed by each object under the influence of the light source information is determined in parallel by utilizing rasterized pixels of the model data. The distance from the rasterized pixels to the shadow edge corresponding to each object is computed, and the corresponding distance data is stored.
    Type: Application
    Filed: October 11, 2022
    Publication date: February 2, 2023
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Huabing XU, Shun CAO, Yuanheng LI, Nan WEI
  • Publication number: 20220392144
    Abstract: This application discloses an image rendering method and apparatus, an electronic device, and a storage medium, and belongs to the field of image processing technologies. The method includes: acquiring a lightmap of a target three-dimensional model in response to a light rendering instruction; acquiring a seam edge of the target three-dimensional model; determining, in the lightmap, a target pixel corresponding to the seam edge; and updating an initial pixel value of the target pixel in the lightmap to obtain a repaired lightmap. In this application, the seam edge of the target three-dimensional model is automatically identified, and the pixel value of the target pixel is automatically updated, so that automatic recognition and automatic repair of a seam problem can be completed by one click, thereby avoiding a waste of labor resources for troubleshooting and repairing the seam problem, reducing image rendering time, and improving image rendering efficiency.
    Type: Application
    Filed: August 19, 2022
    Publication date: December 8, 2022
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Shun CAO, Huabing XU, Yuanheng LI, Nan WEI, Xiaochun CUI, Congbing LI
  • Publication number: 20220207820
    Abstract: A method and apparatus for recognizing a pixel point, an illumination rendering method and apparatus, an electronic device, and a storage medium, which is used to effectively detect a pixel point located in a shadow region, to improve the quality of lightmap rendering. The method includes: obtaining a lightmap of a target object in a target scene; determining, according to a distance between each adjacent pixel point of a pixel point in the lightmap and the pixel point, a coverage radius corresponding to the pixel point; and determining, by using the pixel point as a starting point, that when a ray emitted along at least one tangential direction of the pixel point intersects an unlighted surface of an object in the target scene and a length of the ray is the same as the coverage radius, the pixel point is located in the shadow region.
    Type: Application
    Filed: March 21, 2022
    Publication date: June 30, 2022
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Shun CAO, Huabing XU, Nan WEI, Xiaochun CUI, Congbing LI, Rongxin ZHOU, Wenyan LI
  • Publication number: 20220207821
    Abstract: An image rendering method and a related apparatus, terminal and storage medium that: obtains a low-resolution first shadow map and a high-resolution second shadow map of a target virtual object, determines a first texel range of each texel and a central point in the first shadow map, performs scaling processing, based on the central point, on the first texel range by using a scaling coefficient to obtain a second texel range, and performs shadow rendering on the target virtual object according to the second texel range. A shadow map-based image rendering process is implemented, and since a calculation amount of determining a map position according to a low-resolution map is relatively small, image rendering efficiency is improved. Additionally, rendering of a high-resolution shadow map is completed, generation of edge aliasing is avoided, and an image rendering effect is improved.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Huabing XU, Shun Cao, Nan Wei, Xiaochun Cui, Congbing Li, Rongxin Zhou, Wenyan Li
  • Patent number: 10957084
    Abstract: The present disclosure provides an image processing method. The method includes: detecting at least one first feature object of an image to be processed, to obtain a name and position of each first feature object in the image; according to the name and position of the first feature object, and a preset strategy for loading a dynamic effect, selecting, from the at least one first feature object, a feature object to which a dynamic effect is to be loaded, as a second feature object; and according to the preset strategy for loading a dynamic effect, rendering the second feature object with an Augmented Reality (AR) dynamic effect, and obtaining an image with the AR dynamic effect. The present disclosure further provides an image processing apparatus, a device and a computer readable storage medium.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: March 23, 2021
    Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Zhongqin Wu, Yingchao Li, Chen Zhao, Nan Wei, Qian Ying
  • Publication number: 20190312747
    Abstract: Embodiments of the present disclosure disclose a method, apparatus and system for controlling a home device. A specific implementation of the method includes: determining whether a current interaction between a user and a virtual control in a pre-built virtual scene meets a preset triggering condition, the virtual control corresponding to the home device being formed in the virtual scene; generating a control signal corresponding to the current interaction, in response to determining that the current interaction meets the preset triggering condition; transmitting the control signal to a control terminal, so that the control terminal controls the home device indicated by the control signal; receiving feedback information corresponding to the control signal transmitted by the control terminal; and rendering and displaying the virtual scene based on the feedback information.
    Type: Application
    Filed: March 15, 2019
    Publication date: October 10, 2019
    Inventors: Xiaobo Jia, Nan Wei, Hongwu Zhang
  • Publication number: 20190147632
    Abstract: The present disclosure provides an image processing method. The method includes: detecting at least one first feature object of an image to be processed, to obtain a name and position of each first feature object in the image; according to the name and position of the first feature object, and a preset strategy for loading a dynamic effect, selecting, from the at least one first feature object, a feature object to which a dynamic effect is to be loaded, as a second feature object; and according to the preset strategy for loading a dynamic effect, rendering the second feature object with an Augmented Reality (AR) dynamic effect, and obtaining an image with the AR dynamic effect. The present disclosure further provides an image processing apparatus, a device and a computer readable storage medium.
    Type: Application
    Filed: August 23, 2018
    Publication date: May 16, 2019
    Applicant: Baidu Online Network Technology (Beijing) Co., Ltd .
    Inventors: Zhongqin Wu, Yingchao Li, Chen Zhao, Nan Wei, Qian Ying
  • Publication number: 20130243960
    Abstract: A method for coating a substrate includes immersion depositing a first coating layer onto a substrate such that the first coating layer is deposited in a wet state with regard to water and solvents in the first coating layer. While the first coating layer is in the wet state, a second coating layer is immersion deposited onto the first coating layer. The first coating layer and the second coating layer are then co-dried to substantially remove any water and solvents.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 19, 2013
    Inventor: Nan Wei
  • Patent number: 7887687
    Abstract: A system and method for coating a desired portion of the workpiece with a layer of paint comprises an upper reservoir for storing paint. A female shell has at least two sections joined together to generally surround the workpiece with a gap. An energy source applies a first voltage of a first polarity to at least one of the shell, a conductive layer of the shell, or conductive inlet associated with the shell. The energy source provides a ground or a second voltage of a second polarity, which is different in polarity to the first polarity, to the workpiece. A lower reservoir receives excess paint that flows off the workpiece. A foam reduction module receives the excess paint positioned between the workpiece and the lower reservoir.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: February 15, 2011
    Assignee: Deere & Company
    Inventors: Nan Wei, Brian P. Burghgrave
  • Publication number: 20080050533
    Abstract: A system and method for coating a desired portion of the workpiece with a layer of paint comprises an upper reservoir for storing paint. A female shell has at least two sections joined together to generally surround the workpiece with a gap. An energy source applies a first voltage of a first polarity to at least one of the shell, a conductive layer of the shell, or conductive inlet associated with the shell. The energy source provides a ground or a second voltage of a second polarity, which is different in polarity to the first polarity, to the workpiece. A lower reservoir receives excess paint that flows off the workpiece. A foam reduction module receives the excess paint positioned between the workpiece and the lower reservoir.
    Type: Application
    Filed: August 22, 2006
    Publication date: February 28, 2008
    Inventors: Nan Wei, Brian P. Burghgrave