-
公开(公告)号：US11282212B2
公开(公告)日：2022-03-22
申请号：US16912193
申请日：2020-06-25
Inventor： Xiaoxing Zhu , Yongyi Sun , Chengfa Wang
Abstract: A target tracking method and device, as well as an electronic apparatus and a storage medium are provided. The method includes: acquiring feature information of a detection box in a current video frame and feature information of a detection box in a previous video frame, the feature information comprising position information of the detection box and an appearance feature of an obstacle target within the detection box, wherein the appearance feature comprises a texture feature and a semantics feature; matching the feature information of the detection box in the current video frame with the feature information of the detection box in the previous video frame; and determining a tracking trajectory of the detection box in the current video frame according to a matching result. In the embodiment of the application, an accuracy for tracking an object can be improved.
-
公开(公告)号：US20210142489A1
公开(公告)日：2021-05-13
申请号：US16912193
申请日：2020-06-25
Inventor： Xiaoxing Zhu , Yongyi Sun , Chengfa Wang
Abstract: A target tracking method and device, as well as an electronic apparatus and a storage medium are provided. The method includes: acquiring feature information of a detection box in a current video frame and feature information of a detection box in a previous video frame, the feature information comprising position information of the detection box and an appearance feature of an obstacle target within the detection box, wherein the appearance feature comprises a texture feature and a semantics feature; matching the feature information of the detection box in the current video frame with the feature information of the detection box in the previous video frame; and determining a tracking trajectory of the detection box in the current video frame according to a matching result. In the embodiment of the application, an accuracy for tracking an object can be improved.
-
公开(公告)号：US11383735B2
公开(公告)日：2022-07-12
申请号：US16915552
申请日：2020-06-29
Inventor： Ning Yu , Fan Zhu , Jingjing Xue , Chengfa Wang
Abstract: Embodiments of the present disclosure disclose a vehicle fault processing method, a device and a medium, and relate to the field of autonomous driving technologies. The vehicle fault processing method includes: obtaining operating index data of a target vehicle and driving environment information of the target vehicle, the operating index data being configured to determine an operating condition of the target vehicle; determining whether a fault occurs in the target vehicle based on the operating index data; and when a fault occurs in the target vehicle, controlling the target vehicle to place a warning sign at a preset position based on the driving environment information.
-
4.发明授权公开(公告)号：US11138874B2
公开(公告)日：2021-10-05
申请号：US17037421
申请日：2020-09-29
Inventor： Xuan Huang , Fan Yang , Hui Yuan , Yongyi Sun , Chengfa Wang , Qiqi Xu
Abstract: A timing control method and a timing control apparatus for a signal light, and a storage medium are disclosed. The method includes: determining an optimal passing-through duration of a signal light corresponding to each passing-through direction at a target intersection according to traffic in the passing-through direction; determining a range of values for each variable in a calibration function corresponding to the target intersection according to a constraint to each passing-through direction at the target intersection, wherein the calibration function comprises the optimal passing-through duration corresponding to each passing-through direction and a variable corresponding to a final passing-through duration in each passing-through direction; and calculating the final passing-through duration in each passing-through direction in a case where the calibration function meets a preset condition, according to the range of values for each variable.
-
公开(公告)号：US11548516B2
公开(公告)日：2023-01-10
申请号：US17251168
申请日：2019-12-17
Inventor： Ning Yu , Fan Yang , Chengfa Wang , Gaifan Li
IPC: B60W40/09 , B60W40/06 , B60W40/105 , B60W40/107 , G06V20/56
Abstract: The present disclosure provides a data acquisition method, apparatus, device and computer readable storage medium. According to the embodiments of the present disclosure, determination is made as to whether a preset stable driving condition is met based on acquired driving scene data of the driving scene where the vehicle is currently located, and acquired driving behavior data; if the preset stable driving condition is met, the driving scene data and the driving behavior data are acquired at a frequency lower than a preset sampling frequency. As a result, it is possible to reduce data redundancy in similar scenes and similar diving modes, reduce the amount of data, reduce occupation of the storage resources and transmission resources and facilitate subsequent analysis, and it is possible to implement the dynamic acquisition of driving scene data and driving behavior data by scenes and modes.
-
Patent Agency Ranking
公开(公告)号：US11527155B2
公开(公告)日：2022-12-13
申请号：US17003587
申请日：2020-08-26
Inventor： Xuan Huang , Fan Yang , Qiqi Xu , Chengfa Wang , Yongyi Sun , Hui Yuan
Abstract: A time-segmented signal timing method is related to the field of intelligent transportation. The specific implementation is: obtaining traffic volume data of a target intersection in each period of time of N consecutive days, N being an integer greater than 1; performing curve fitting on the traffic volume data to determine a traffic volume curve corresponding to the target intersection of each day; determining calculating respective target points in the traffic volume curve with second derivatives satisfying a preset condition; and performing time-segmented signal timing on a traffic light at the target intersection based on time points corresponding to the respective target points.
-
公开(公告)号：US11468769B2
公开(公告)日：2022-10-11
申请号：US16926313
申请日：2020-07-10
Inventor： Xuan Huang , Fan Yang , Yongyi Sun , Chengfa Wang , Hui Yuan , Qiqi Xu
Abstract: A method and an electronic device for detecting a vehicle queue length are disclosed. The method includes: when determining that a traffic light turns green, obtaining vehicle information of each vehicle on a lane section to be detected in a first preset time period before a time point when the traffic light turns green; determining at least one vehicle that has a static position and a static time point on the lane section to be detected; determining a first queuing vehicle and a last queuing vehicle on the lane section to be detected based on the at least one vehicle that has the static position and the static time point on the lane section to be detected; and determining a vehicle queue length on the lane section to be detected based on a position of the first queuing vehicle and a position of the last queuing vehicle.
-
公开(公告)号：US11443621B2
公开(公告)日：2022-09-13
申请号：US17115328
申请日：2020-12-08
Inventor： Qiqi Xu , Fan Yang , Yongyi Sun , Chengfa Wang , Xuan Huang
Abstract: A method and apparatus for adjusting channelization of a traffic intersection are proposed. The specific implementation of the method is: obtaining a first traffic characteristic of vehicles at each of a plurality of target positions in a process of vehicles in a target traveling direction traveling through the traffic intersection from upstream to downstream in a preset first time period; generating first traffic change information of the traffic intersection based on the first traffic characteristic at each of the plurality of target positions; and in response to that the first traffic change information satisfies a preset first change distribution, generating channelization adjustment information for non-motorized vehicle lanes of the traffic intersection.
-
公开(公告)号：US11290843B2
公开(公告)日：2022-03-29
申请号：US16918496
申请日：2020-07-01
Inventor： Guohao Gong , Junping Wang , Tiankun Zhao , Dongchao Gao , Zelin Wu , Chengfa Wang , Yongyi Sun
IPC: H04W4/02 , H04W4/44 , G01S11/02 , G08G1/0962
Abstract: The present disclosure provides a method for measuring a sensing range of a vehicle, a device and a medium, and relates to a technical field of automatic driving. The method includes: determining a target road side unit to be measured according to a road side unit identifier; when it is detected that the vehicle receives a road-side message from the target road side unit, determining vehicle positioning information of the vehicle when the road-side message is received; and determining a sensing range of the vehicle to the target road side unit in a target lane in which the vehicle travels according to the vehicle positioning information.
-
10.发明授权公开(公告)号：US11173927B2
公开(公告)日：2021-11-16
申请号：US16709765
申请日：2019-12-10
Inventor： Ning Yu , Chengfa Wang , Fan Yang , Leibing Lv , Junping Wang
Abstract: A method, an apparatus, a computer device and a storage medium for autonomous driving determination are proposed. The method includes: obtaining information about a driving scenario of an autonomous vehicle when a preset trigger condition is met; comparing the information about the driving scenario with an autonomous driving capability of the autonomous vehicle; determining, according to a comparison result, whether the autonomous vehicle is adapted to employ an autonomous driving mode in the driving scenario. The technical solution of the present disclosure may be applied to improve the safety of the vehicle and the user.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.022 seconds)
