Patents by Inventor Xiaohan Nie

Xiaohan Nie 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: 11967161
    Abstract: The present disclosure generally relates to a system of a delivery device for combining sensor data from various types of sensors to generate a map that enables the delivery device to navigate from a first location to a second location to deliver an item to the second location. The system obtains data from RGB, LIDAR, and depth sensors and combines this sensor data according to various algorithms to detect objects in an environment of the delivery device, generate point cloud and pose information associated with the detected objects, and generates object boundary data for the detected objects. The system further identifies object states for the detected object and generates the map for the environment based on the detected object, the generated object proposal data, the labeled point cloud data, and the object states. The generated map may be provided to other systems to navigate the delivery device.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: April 23, 2024
    Assignee: Amazon Technologies, Inc.
    Inventors: Hakan Boyraz, Baoyuan Liu, Xiaohan Nie, Sheng Chen
  • Publication number: 20240029278
    Abstract: Methods and systems are described for registering a sports field to a video. Video of a live event may feature participants at a venue. A template of the venue, including virtual markings that represent real markings on the venue, may be obtained. A homographic transformation between an image plane and a ground plane may be determined by matching virtual markings to corresponding real markings captured in at least one frame of the video. The determined homographic transformation may be used in the automated analysis of sports statistics and in improving inserted annotations and visualizations.
    Type: Application
    Filed: October 4, 2023
    Publication date: January 25, 2024
    Inventors: Xiaohan Nie, Muhammad Raffay Hamid
  • Patent number: 11816849
    Abstract: Methods and systems are described for registering a sports field to a video. Video of a live event may feature participants at a venue. A template of the venue, including virtual markings that represent real markings on the venue, may be obtained. A homographic transformation between an image plane and a ground plane may be determined by matching virtual markings to corresponding real markings captured in at least one frame of the video. The determined homographic transformation may be used in the automated analysis of sports statistics and in improving inserted annotations and visualizations.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: November 14, 2023
    Assignee: Amazon Technologies, Inc.
    Inventors: Xiaohan Nie, Muhammad Raffay Hamid
  • Patent number: 11748988
    Abstract: Techniques for automatic scene change detection in a video are described. As one example, a computer-implemented method includes extracting features of a query shot and its neighboring shots of a first set of shots without labels with a query model, determining a key shot of the neighboring shots which is most similar to the query shot based at least in part on the features of the query shot and its neighboring shots, extracting features of the key shot with a key model, training the query model into a trained query model based at least in part on a comparison of the features of the query shot and the features of the key shot, extracting features of a second set of shots with labels with the trained query model, and training a temporal model into a trained temporal model based at least in part on the features extracted from the second set of shots and the labels of the second set of shots.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: September 5, 2023
    Assignee: Amazon Technologies, Inc.
    Inventors: Shixing Chen, Xiaohan Nie, David Jiatian Fan, Dongqing Zhang, Vimal Bhat, Muhammad Raffay Hamid
  • Publication number: 20230023419
    Abstract: Methods and systems are described for registering a sports field to a video. Video of a live event may feature participants at a venue. A template of the venue, including virtual markings that represent real markings on the venue, may be obtained. A homographic transformation between an image plane and a ground plane may be determined by matching virtual markings to corresponding real markings captured in at least one frame of the video. The determined homographic transformation may be used in the automated analysis of sports statistics and in improving inserted annotations and visualizations.
    Type: Application
    Filed: September 30, 2022
    Publication date: January 26, 2023
    Inventors: Xiaohan Nie, Muhammad Raffay Hamid
  • Patent number: 11532111
    Abstract: Techniques for a comic book feature are described herein. A visual data stream of a video may be parsed into a plurality of frames. Scene boundaries may be determined to generate a scene using the plurality of frames where a scene includes a subset of frames. A key frame may be determined for the scene using the subset of frames. An audio portion of an audio data stream of the video may be identified that maps to the subset of frames based on time information. The key frame may be converted to a comic image based on an algorithm. First dimensions and placement for a data object may be determined for the comic image. The data object may include the audio portion for the comic image. A comic panel may be generated for the comic image that incorporates the data object using the determined first dimensions and the placement.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: December 20, 2022
    Assignee: Amazon Technologies, Inc.
    Inventors: Dongqing Zhang, Muhammad Raffay Hamid, Xiaohan Nie, Shixing Chen
  • Patent number: 11468578
    Abstract: Methods and systems are described for registering a sports field to a video. Video of a live event may feature participants at a venue. A template of the venue, including virtual markings that represent real markings on the venue, may be obtained. A homographic transformation between an image plane and a ground plane may be determined by matching virtual markings to corresponding real markings captured in at least one frame of the video. The determined homographic transformation may be used in the automated analysis of sports statistics and in improving inserted annotations and visualizations.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: October 11, 2022
    Assignee: Amazon Technologies, Inc.
    Inventors: Xiaohan Nie, Muhammad Raffay Hamid
  • Publication number: 20220084222
    Abstract: Methods and systems are described for registering a sports field to a video. Video of a live event may feature participants at a venue. A template of the venue, including virtual markings that represent real markings on the venue, may be obtained. A homographic transformation between an image plane and a ground plane may be determined by matching virtual markings to corresponding real markings captured in at least one frame of the video. The determined homographic transformation may be used in the automated analysis of sports statistics and in improving inserted annotations and visualizations.
    Type: Application
    Filed: September 14, 2020
    Publication date: March 17, 2022
    Inventors: Xiaohan Nie, Muhammad Raffay Hamid
  • Publication number: 20210405638
    Abstract: The present disclosure generally relates to a system of a delivery device for combining sensor data from various types of sensors to generate a map that enables the delivery device to navigate from a first location to a second location to deliver an item to the second location. The system obtains data from RGB, LIDAR, and depth sensors and combines this sensor data according to various algorithms to detect objects in an environment of the delivery device, generate point cloud and pose information associated with the detected objects, and generates object boundary data for the detected objects. The system further identifies object states for the detected object and generates the map for the environment based on the detected object, the generated object proposal data, the labeled point cloud data, and the object states. The generated map may be provided to other systems to navigate the delivery device.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 30, 2021
    Inventors: Hakan Boyraz, Baoyuan Liu, Xiaohan Nie, Sheng Chen
  • Patent number: 11175664
    Abstract: An autonomous delivery robot system to enable delivery of a product to a customer is described. One autonomous ground vehicle (AGV) includes a processing device that receives a delivery request comprising a route divided into multiple navigation segments and computes a navigable space from perception data stored in a perception map. The perception map is a robot-centered local map that stores the perception data indicative of the surroundings of the AGV. The processing device computes a cost inflation from the perception data stored in the perception map, determines a sub-goal that is on the navigable space and reachable by the AGV using the navigable space and the cost inflation, and determines a path to achieve the sub-goal using the using the navigable space and the cost inflation. The processing device controls one or more actuators to move along the path.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: November 16, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Hakan Boyraz, Marshall Tappen, Baoyuan Liu, Xiaohan Nie, Sheng Chen, Christopher Brown