Patents by Inventor Qu Chen

Qu Chen 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: 11880348
    Abstract: A database management system maintains a collection of data using a log-based storage structure. In response to a request to store data items (key-value pairs), the database management system stores mapping information to a data item in an in-memory data structure while the data items are stored on the log-based storage structure. The hash of the key includes information to identify an index entry that comprises information that maps to the location of the data item stored on the log-based storage structure.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: January 23, 2024
    Assignee: Amazon Technologies, Inc.
    Inventors: Gourav Roy, Qu Chen, Allen Robert Samuels, Kevin R McGehee, Itay Maoz, Abhishek Kumar, Juan Carlos Gomez, Jan Raak, Ahmed Hesham Salem
  • Publication number: 20220351495
    Abstract: A method for matching an image feature point, an electronic device, and a storage medium are provided. The method may include: for images in an acquired image sequence, performing operations including: obtaining a mapping image of a current image based on mapping transformation information between adjacent images before the current image; determining in the mapping image a target area for matching with a feature point in a last image frame prior to the current image; matching the feature point in the last image frame with a feature point in the target area corresponding to the feature point, to determine matching information between the feature point of the current image and the feature point of the last image frame; and determining mapping transformation information between the current image and the last image frame, based on the matching information.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 3, 2022
    Inventors: Qu CHEN, Xiao TAN, Xiaoqing YE, Hao SUN
  • Publication number: 20220215507
    Abstract: An image stitching method and apparatus, a device, and a medium is provided. An implementation solution is: obtaining a first image and a second image, where the first image and the second image have an overlapping area; determining a first stitching line segment of the first image and a second stitching line segment of the second image, where the second stitching line segment has a first matching line segment in the first image; determining a first stitching area of the first image based on the first stitching line segment and the first matching line segment; configuring a first target canvas at least based on the first stitching area; determining, for each pixel of a plurality of pixels included in the first stitching area, a corresponding mapping pixel in the first target canvas; and mapping pixel values of the plurality of pixels included in the first stitching area to the corresponding mapping pixels in the first target canvas, respectively, to obtain an image to be stitched of the first image.
    Type: Application
    Filed: December 15, 2021
    Publication date: July 7, 2022
    Inventors: Xiaoqing YE, Qu CHEN, Xiao TAN, Hao SUN
  • Publication number: 20220058779
    Abstract: The disclosure provides an inpainting method for a human image, an inpainting apparatus for a human image and an electronic device. An image to be processed is received. The image to be processed contains a human image to be processed. A three-dimensional human body model corresponding to the human image to be processed, camera parameters, and human body posture information are generated based on the image to be processed. A segmentation image corresponding to the human image to be processed is generated based on the image to be processed. A processed human image corresponding to the human image to be processed is generated based on the three-dimensional human body model, the camera parameters, the human body posture information, and the segmentation image.
    Type: Application
    Filed: November 2, 2021
    Publication date: February 24, 2022
    Inventors: Zhikang ZOU, Xiaoqing YE, Qu CHEN, Hao SUN
  • Publication number: 20210350541
    Abstract: The disclosure provides a portrait extracting method, a portrait extracting apparatus and a storage medium. The method includes: obtaining an image to be processed; obtaining a semantic segmentation result and an instance segmentation result of the image, in which the semantic segmentation result includes a mask image of a portrait area of the image, and the instance segmentation result includes a mask image of at least one portrait in the image; fusing the mask. image of the at least one portrait and the mask image of the portrait area to generate a fused mask image of the at least one portrait; and extracting the at least one portrait in the image based on the fused mask image of the at least one portrait.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Inventors: Qu CHEN, Xiaoqing Ye, Zhikang Zou, Hao Sun
  • Patent number: 10657154
    Abstract: Data within a database partition that is being migrated may be made available for access. Data within a database partition may be selected for migration. Writes to the selected data may be prevented while the data is being migrated. Writes to other data, or read access any of the partition, may be allowed during the migration of the selected data. Rollback events may be detected for a database partition that is being migrated, halting the further selection of data for migration and deleting the successfully migrated data at the copy of the database partition being created.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: May 19, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Rajib Dugar, Qu Chen, Suraj Narkhede, Aseem Cheema, Kevin Robert McGehee