Patents by Inventor Zongzhang ZHANG

Zongzhang ZHANG 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: 11574152
    Abstract: The recognition system for security check and control method thereof. The recognition system for security check is integrated with a reinforcement learning algorithm and an attention region proposal network. The recognition system for security check comprises the following modules: an object feature extraction module (1); a dangerous item region segmentation module (2); a preliminary classification module (3); a preliminary classification result determination module (4); and a fine-grained recognition module (5). In the invention, optimization of a dangerous item region segmentation module and provision of a fine-grained recognition module greatly improve accuracy and efficiency of security check, shorten the duration of security check, alleviate congestion, save labor, and reduce pressure on security check personnel.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: February 7, 2023
    Assignee: POLIXIR TECHNOLOGY CO., LTD.
    Inventors: Zongzhang Zhang, Haoran Chen, Yishen Wang, Yongliang Shen
  • Patent number: 11224970
    Abstract: A large area surveillance method is based on weighted double deep Q-learning. A robot which of Q-value table including a QA-value table and QB-value table is provided, an unidentified object enters a large space to trigger the robot, and the robot perceives a current state s and determines whether the current state s is a target state, if yes, the robot reaches a next state and monitors the unidentified object, and if not, the robot reaches a next state, obtains a reward value according to the next state, selectively updates a QA-value or QB-value with equal probability, and then updates a Q-value until convergence to obtain an optimal surveillance strategy. The problems of a limited surveillance area and camera capacity are resolved, and the synchronization of multiple cameras doesn't need to be considered, and thus the cost is reduced. A large area surveillance robot is also disclosed.
    Type: Grant
    Filed: April 8, 2018
    Date of Patent: January 18, 2022
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Zongzhang Zhang, Zhiyuan Pan, Hui Wang
  • Publication number: 20210205985
    Abstract: A large area surveillance method is based on weighted double deep Q-learning. A robot which of Q-value table including a QA-value table and QB-value table is provided, an unidentified object enters a large space to trigger the robot, and the robot perceives a current state s and determines whether the current state s is a target state, if yes, the robot reaches a next state and monitors the unidentified object, and if not, the robot reaches a next state, obtains a reward value according to the next state, selectively updates a QA-value or QB-value with equal probability, and then updates a Q-value until convergence to obtain an optimal surveillance strategy. The problems of a limited surveillance area and camera capacity are resolved, and the synchronization of multiple cameras doesn't need to be considered, and thus the cost is reduced. A large area surveillance robot is also disclosed.
    Type: Application
    Filed: April 8, 2018
    Publication date: July 8, 2021
    Inventors: Zongzhang ZHANG, Zhiyuan PAN, Hui WANG
  • Publication number: 20200302248
    Abstract: The recognition system for security check and control method thereof. The recognition system for security check is integrated with a reinforcement learning algorithm and an attention region proposal network. The recognition system for security check comprises the following modules: an object feature extraction module (1); a dangerous item region segmentation module (2); a preliminary classification module (3); a preliminary classification result determination module (4); and a fine-grained recognition module (5). In the invention, optimization of a dangerous item region segmentation module and provision of a fine-grained recognition module greatly improve accuracy and efficiency of security check, shorten the duration of security check, alleviate congestion, save labor, and reduce pressure on security check personnel.
    Type: Application
    Filed: June 9, 2020
    Publication date: September 24, 2020
    Inventors: Zongzhang ZHANG, Haoran CHEN, Yishen WANG, Yongliang SHEN