Patents by Inventor CHIA-RAY CHEN

CHIA-RAY 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).

  • Publication number: 20210208376
    Abstract: A catadioptric optical system in sequence of ray tracing comprises a first mirrors group of Ritchey-Chr├ętien type hyperbolic mirrors with positive diopter including a concave primary mirror having a central through hole and a convex secondary mirror, a second corrector lens group with negative diopter positioned at the image-side of the first mirrors group including a first meniscus lens element having positive refractive power and a convex object-side surface, a second lens element having negative refractive power and biconcave surfaces, a third meniscus lens element having negative refractive power and a concave object-side surface, and a fourth lens element having positive refractive power and biconvex surfaces. The infinite conjugate beams of incident light within field of view pass through the catadioptric optical system to become a corrected beam having a small CRA angle.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 8, 2021
    Applicant: National Applied Research Laboratories
    Inventors: SHENG-FENG LIN, CHING-WEI CHEN, CHIA-RAY CHEN, TIEN-CHUN KUO
  • Patent number: 10803603
    Abstract: Disclosures of the present invention describe a moving object detection system and method, wherein a pre-processer module, a feature extraction module, an image optical flow estimation module, a feature points grouping module, and a moving object determination module are provided in a controlling and processing module of the system by a form of library, variables, or operands. Moreover, a feature difference calculation unit, a matrix establishing unit and a corner feature point acquiring unit are provided in the feature extraction module, and that is helpful for enhancing computing speed of the controlling and processing device in verifying corner feature points from image frames. Therefore, after the corner feature points are applied with a cluster labeling process, the moving object determination module can achieve motion detection of at least one object locating in a monitoring area by determining whether corner feature point groups move or not.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: October 13, 2020
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Pei-Jun Lee, Zheng-Kai Chiu, Kuang-Zhe Liu, Chia-Ray Chen, Hsin-Chia Lin
  • Publication number: 20200160539
    Abstract: Disclosures of the present invention describe a moving object detection system and method, wherein a pre-processer module, a feature extraction module, an image optical flow estimation module, a feature points grouping module, and a moving object determination module are provided in a controlling and processing module of the system by a form of library, variables, or operands. Moreover, a feature difference calculation unit, a matrix establishing unit and a corner feature point acquiring unit are provided in the feature extraction module, and that is helpful for enhancing computing speed of the controlling and processing device in verifying corner feature points from image frames. Therefore, after the corner feature points are applied with a cluster labeling process, the moving object determination module can achieve motion detection of at least one object locating in a monitoring area by determining whether corner feature point groups move or not.
    Type: Application
    Filed: December 10, 2018
    Publication date: May 21, 2020
    Inventors: PEI-JUN LEE, ZHENG-KAI CHIU, KUANG-ZHE LIU, CHIA-RAY CHEN, HSIN-CHIA LIN