Patents by Inventor Xiaotao Zou

Xiaotao Zou 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: 10262213
    Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from vehicle camera sensors at a road segment, wherein the probe data includes lane marking data on the road segment. Lane markings are identified, to the extent present, for the left and right boundaries of the lane of travel as well as the adjacent lane boundaries to the left and right of the lane of travel. The identified lane markings are coded, wherein solid lane lines, dashed lane lines, and unidentified or non-existing lane lines are differentiated. The coded lane markings are compiled in a database. A number of lanes are predicted at the road segment from the database of coded lane markings.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: April 16, 2019
    Assignee: HERE Global B.V.
    Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou
  • Patent number: 10002537
    Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from radar sensors of vehicles at a road segment, where the probe data includes an identification of static objects and dynamic objects in proximity to the respective vehicles at the road segment, and geographic locations of the static objects and the dynamic objects. A reference point, such as a road boundary, at the road segment is determined from the identified static objects. Lateral distances between the identified dynamic objects and the reference point are calculated. A number of lanes at the road segment are ascertained from a distribution of the calculated distances of the identified dynamic objects from the reference point.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: June 19, 2018
    Assignee: HERE Global B. V.
    Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou
  • Publication number: 20170287337
    Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from radar sensors of vehicles at a road segment, where the probe data includes an identification of static objects and dynamic objects in proximity to the respective vehicles at the road segment, and geographic locations of the static objects and the dynamic objects. A reference point, such as a road boundary, at the road segment is determined from the identified static objects. Lateral distances between the identified dynamic objects and the reference point are calculated. A number of lanes at the road segment are ascertained from a distribution of the calculated distances of the identified dynamic objects from the reference point.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 5, 2017
    Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou
  • Patent number: 9721471
    Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from radar sensors of vehicles at a road segment, where the probe data includes an identification of static objects and dynamic objects in proximity to the respective vehicles at the road segment, and geographic locations of the static objects and the dynamic objects. A reference point, such as a road boundary, at the road segment is determined from the identified static objects. Lateral distances between the identified dynamic objects and the reference point are calculated. A number of lanes at the road segment are ascertained from a distribution of the calculated distances of the identified dynamic objects from the reference point.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: August 1, 2017
    Assignee: HERE Global B.V.
    Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou
  • Patent number: 9459626
    Abstract: Systems, methods, and apparatuses are disclosed for identifying road signs along a roadway segment from vehicle probe data. Probe data is received from vehicle sensors at a road segment, wherein the probe data includes observed static objects along the road segment. Road signs are identified within the observed static objects of the probe data using a logistic regression algorithm. The geographic location of the identified road signs are determined using a linear regression algorithm.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: October 4, 2016
    Assignee: HERE Global B.V.
    Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vlad Zhukov, Xiaotao Zou
  • Publication number: 20160171893
    Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from radar sensors of vehicles at a road segment, where the probe data includes an identification of static objects and dynamic objects in proximity to the respective vehicles at the road segment, and geographic locations of the static objects and the dynamic objects. A reference point, such as a road boundary, at the road segment is determined from the identified static objects. Lateral distances between the identified dynamic objects and the reference point are calculated. A number of lanes at the road segment are ascertained from a distribution of the calculated distances of the identified dynamic objects from the reference point.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 16, 2016
    Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou
  • Publication number: 20160170414
    Abstract: Systems, methods, and apparatuses are disclosed for identifying road signs along a roadway segment from vehicle probe data. Probe data is received from vehicle sensors at a road segment, wherein the probe data includes observed static objects along the road segment. Road signs are identified within the observed static objects of the probe data using a logistic regression algorithm. The geographic location of the identified road signs are determined using a linear regression algorithm.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 16, 2016
    Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vlad Zhukov, Xiaotao Zou
  • Publication number: 20160167582
    Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from vehicle camera sensors at a road segment, wherein the probe data includes lane marking data on the road segment. Lane markings are identified, to the extent present, for the left and right boundaries of the lane of travel as well as the adjacent lane boundaries to the left and right of the lane of travel. The identified lane markings are coded, wherein solid lane lines, dashed lane lines, and unidentified or non-existing lane lines are differentiated. The coded lane markings are compiled in a database. A number of lanes are predicted at the road segment from the database of coded lane markings.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 16, 2016
    Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou