Patents by Inventor Long Mak

Long Mak 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: 20250377733
    Abstract: Methods and systems for touchless control of a device include receiving at least one image; determining a first map, the first map including a function that generates a correspondence between data associated with the image to a feature space; determining a second map including a representation of a user in the image based on the first map; determining a third map comprising a field associated with the data in the image; determining a characteristic of the user based on one or more of the second map and the third map; and tracking the characteristic of the user to generate a historical data of the characteristic for performing the touchless control of the device.
    Type: Application
    Filed: August 14, 2025
    Publication date: December 11, 2025
    Inventors: Wang Fai Ng, Wing Hung Chan, Long Mak, Keng Fai Lee, On Loy Sung
  • Patent number: 12399572
    Abstract: Methods and systems for touchless control of a device include receiving at least one image; determining a first map, the first map including a function that generates a correspondence between data associated with the image to a feature space; determining a second map including a representation of a user in the image based on the first map; determining a third map comprising a field associated with the data in the image; determining a characteristic of the user based on one or more of the second map and the third map; and tracking the characteristic of the user to generate a historical data of the characteristic for performing the touchless control of the device.
    Type: Grant
    Filed: January 4, 2024
    Date of Patent: August 26, 2025
    Assignee: NEX Team Inc.
    Inventors: Wang Fai Ng, Wing Hung Chan, Long Mak, Keng Fai Lee, On Loy Sung
  • Patent number: 12280297
    Abstract: Methods and systems are disclosed for pose comparison, interactive physical gaming, and remote fitness training on a user computing device. The methods and systems are configured to first receive a reference feature generated from a frame of a reference video, the reference feature computed from a reference posture of a reference person in the frame of the reference video. Next, receive a frame of a user video, the frame of the user video comprising a user. Next, extract a user posture from the frame of the user video, by performing a machine learning-based computer vision algorithm that detects one or more body key points of the user in an image plane of the user video. Finally, generate a user feature from the user posture; and determine an output score based on a distance between the reference feature and the user feature.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: April 22, 2025
    Assignee: NEX Team Inc.
    Inventors: Qi Zhang, Keng Fai Lee, Daniel Dejos, Jorge Fino, Long Mak
  • Publication number: 20240428439
    Abstract: Methods and systems for performing a location determination in a three-dimensional environment using a computing device with a camera are disclosed. The methods and systems perform the steps of receiving an image of a user from the camera of the computing device. Identifying the user from the image using a first algorithm, where the first algorithm is a machine learning algorithm. Determining a pose information associated with the user using a second algorithm, where the second algorithm is a machine vision algorithm. Determining a depth information associated with the user based on the pose information and an input parameter (e.g., height) of the user using a search process (e.g., binary search). Finally, determining the location of the user in the environment based on the pose information and the depth information.
    Type: Application
    Filed: September 8, 2024
    Publication date: December 26, 2024
    Inventors: Qi Zhang, Wing Hung Chan, Keng Fai Lee, Long Mak
  • Patent number: 12087008
    Abstract: Methods and systems for performing location and movement determination in a three-dimensional environment using a device with a camera are disclosed. The methods and systems perform the steps of capturing an image of a user using the camera of the computing device, identifying the user from the image using a first algorithm, determining a first physical information associated with the user using a first algorithm, determining a second physical information of the user based on the first physical information and an input parameter of the user using a search process, and determining the location of the user in the environment based on the first physical information and the second physical information.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: September 10, 2024
    Assignee: NEX Team Inc.
    Inventors: Qi Zhang, Wing Hung Chan, Keng Fai Lee, Long Mak
  • Publication number: 20240134463
    Abstract: Methods and systems for touchless control of a device include receiving at least one image; determining a first map, the first map including a function that generates a correspondence between data associated with the image to a feature space; determining a second map including a representation of a user in the image based on the first map; determining a third map comprising a field associated with the data in the image; determining a characteristic of the user based on one or more of the second map and the third map; and tracking the characteristic of the user to generate a historical data of the characteristic for performing the touchless control of the device.
    Type: Application
    Filed: January 4, 2024
    Publication date: April 25, 2024
    Inventors: Wang Fai Ng, Wing Hung Chan, Long Mak, Keng Fai Lee, On Loy Sung
  • Patent number: 11868536
    Abstract: Methods and systems for touchless control of a device include receiving an image from a camera and applying a machine learning technique the image to determine a first map, the first map including a function that generates a correspondence between data associated with the image to a feature space. A second map including a representation of a user in the image can be determined based on the first map. Further, a pose of the user can be determined based on the second map. The pose of the user and a portion of a body of the user can be tracked to determine a mapping between the portion of the user's body and an input feature of a device. The input feature can be modified based on the mapping to enable a touchless interaction between the user and the device.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: January 9, 2024
    Assignee: NEX Team Inc.
    Inventors: Wang Fai Ng, Wing Hung Chan, Long Mak, Keng Fai Lee, On Loy Sung
  • Patent number: 11810321
    Abstract: Methods and systems for image clustering are described, and include first receiving a plurality of images from a video of a game. Next, determining a first feature vector of a first player from the plurality of images by inputting the plurality of images to an artificial intelligence (AI)-based process. Next, dividing the plurality of images into a first subset of images and a second subset of images based on the first feature vector. Next, receiving a first identifier tagging the first player in a first image of the first subset. Finally, identifying a second player in a second image in the second subset by propagating the first identifier of the first subset, based on a distance measure associated with the first feature vector from the artificial intelligence (AI)-based process. Running on a mobile computing device, the method allows multiplayer tagging to be easily performed in almost any environment.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: November 7, 2023
    Assignee: NEX Team Inc.
    Inventors: Qi Zhang, Ian Smith, Long Mak, Keng Fai Lee, Wing Hung Chan
  • Publication number: 20220080260
    Abstract: Methods and systems are disclosed for pose comparison, interactive physical gaming, and remote fitness training on a user computing device. The methods and systems are configured to first receive a reference feature generated from a frame of a reference video, the reference feature computed from a reference posture of a reference person in the frame of the reference video. Next, receive a frame of a user video, the frame of the user video comprising a user. Next, extract a user posture from the frame of the user video, by performing a machine learning-based computer vision algorithm that detects one or more body key points of the user in an image plane of the user video. Finally, generate a user feature from the user posture; and determine an output score based on a distance between the reference feature and the user feature.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 17, 2022
    Inventors: Qi Zhang, Keng Fai Lee, Daniel Dejos, Jorge Fino, Long Mak
  • Publication number: 20220027632
    Abstract: Methods and systems for image clustering are described, and include first receiving a plurality of images from a video of a game. Next, determining a first feature vector of a first player from the plurality of images by inputting the plurality of images to an artificial intelligence (AI)-based process. Next, dividing the plurality of images into a first subset of images and a second subset of images based on the first feature vector. Next, receiving a first identifier tagging the first player in a first image of the first subset. Finally, identifying a second player in a second image in the second subset by propagating the first identifier of the first subset, based on a distance measure associated with the first feature vector from the artificial intelligence (AI)-based process. Running on a mobile computing device, the method allows multiplayer tagging to be easily performed in almost any environment.
    Type: Application
    Filed: October 7, 2021
    Publication date: January 27, 2022
    Inventors: Qi Zhang, Ian Smith, Long Mak, Keng Fai Lee, Wing Hung Chan
  • Patent number: 11157742
    Abstract: Methods and systems for image clustering are described, and include determining a plurality of images from a video of a game, the video captured by a camera on a mobile device, where at least one image of the plurality of images is segmented from a video frame of the video; determining a feature vector from the at least one image; dividing the images into a first subset and a second subset based on the feature vector; tagging a first player in a first image of the first subset with an identifier, where the identifier differentiates the images in the first subset to a plurality of players; and identifying a second player in a second image in the second subset by propagating the identifier of the first subset, based on a distance measure associated with the feature vector. Running on a mobile computing device, this invention allows multiplayer tagging to be easily performed in almost any environment.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: October 26, 2021
    Assignee: NEX Team Inc.
    Inventors: Qi Zhang, Ian Smith, Long Mak, Keng Fai Lee, Wing Hung Chan
  • Publication number: 20210272312
    Abstract: Methods and systems for performing location and movement determination in a three-dimensional environment using a device with a camera are disclosed. The methods and systems perform the steps of capturing an image of a user using the camera of the computing device, identifying the user from the image using a first algorithm, determining a first physical information associated with the user using a first algorithm, determining a second physical information of the user based on the first physical information and an input parameter of the user using a search process, and determining the location of the user in the environment based on the first physical information and the second physical information.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 2, 2021
    Inventors: Qi Zhang, Wing Hung Chan, Keng Fai Lee, Long Mak
  • Publication number: 20210192773
    Abstract: Methods and systems for performing location and movement determination in a three-dimensional environment using a mobile device with a camera are disclosed. The methods and systems perform the steps of capturing one or more images of a user using the camera on the mobile computing device, determining the user from the images using a machine learning algorithm, determining a pose associated with the user using a machine vision algorithm, determining a depth of the user with respect to the camera based on the pose and an input height of the user using a binary search process, and determining the location of the user in the environment based on the pose and the depth.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Inventors: Qi Zhang, Wing Hung Chan, Keng Fai Lee, Long Mak
  • Patent number: 11024053
    Abstract: Methods and systems for performing location and movement determination in a three-dimensional environment using a mobile device with a camera are disclosed. The methods and systems perform the steps of capturing one or more images of a user using the camera on the mobile computing device, determining the user from the images using a machine learning algorithm, determining a pose associated with the user using a machine vision algorithm, determining a depth of the user with respect to the camera based on the pose and an input height of the user using a binary search process, and determining the location of the user in the environment based on the pose and the depth.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: June 1, 2021
    Assignee: NEX Team Inc.
    Inventors: Qi Zhang, Wing Hung Chan, Keng Fai Lee, Long Mak
  • Publication number: 20210064880
    Abstract: Methods and systems for image clustering are described, and include determining a plurality of images from a video of a game, the video captured by a camera on a mobile device, where at least one image of the plurality of images is segmented from a video frame of the video; determining a feature vector from the at least one image; dividing the images into a first subset and a second subset based on the feature vector; tagging a first player in a first image of the first subset with an identifier, where the identifier differentiates the images in the first subset to a plurality of players; and identifying a second player in a second image in the second subset by propagating the identifier of the first subset, based on a distance measure associated with the feature vector. Running on a mobile computing device, this invention allows multiplayer tagging to be easily performed in almost any environment.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 4, 2021
    Inventors: Qi Zhang, Ian Smith, Long Mak, Keng Fai Lee, Wing Hung Chan
  • Publication number: 20200387232
    Abstract: Methods and systems for touchless control of a device include receiving an image from a camera and applying a machine learning technique the image to determine a first map, the first map including a function that generates a correspondence between data associated with the image to a feature space. A second map including a representation of a user in the image can be determined based on the first map. Further, a pose of the user can be determined based on the second map. The pose of the user and a portion of a body of the user can be tracked to determine a mapping between the portion of the user's body and an input feature of a device. The input feature can be modified based on the mapping to enable a touchless interaction between the user and the device.
    Type: Application
    Filed: March 20, 2020
    Publication date: December 10, 2020
    Inventors: Wang Fai Ng, Wing Hung Chan, Long Mak, Keng Fai Lee, On Loy Sung
  • Patent number: 10620713
    Abstract: Methods and systems for mobile device-based touchless control can include receiving an image of a user and applying a convolutional neural network to the image to determine a feature map. Further, a key-points map and an affinity-field map can be determined based on the feature map, and the pose of the user can be determined based on the maps. The methods and system further include identifying an activation gesture of the user and determining a validity of a bounding box associated with the pose of the user, and tracking the pose of the user and a portion of a body of the user for performing the touchless control. Further, the methods and systems include determining a mapping between the portion of the user's body and a cursor position associated with an application, and moving the cursor position to enable touchless user interaction. Embodiments use computer vision techniques to enable a resource-limited mobile device to conduct the aforementioned steps.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: April 14, 2020
    Assignee: NEX Team Inc.
    Inventors: Wang Fai Ng, Wing Hung Chan, Long Mak, Keng Fai Lee, On Loy Sung