The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Jun. 22, 2020
Jun Tang, Changsha, CN;
Jun Tang, Changsha, CN;
Yirun Ruan, Changsha, CN;
Wanting Qin, Changsha, CN;
Songyang Lao, Changsha, CN;
Liang Bai, Changsha, CN;
Other;
Abstract
Disclosed is a method and a device of trajectory outlier detection. The method may include: points on a trajectory to be detected are obtained by sampling the trajectory; characteristic points are extracted from the points according to spatial state and temporal state of each of the points; trajectory segments are obtained by segmenting the trajectory according to the characteristic points; each of the trajectory segments is compared to normal trajectory segments and abnormal trajectory segments; and one or more trajectory outliers are identified from the trajectory segments based on comparison results. Wherein, the normal trajectory segments and the abnormal trajectory segments are obtained by clustering trajectory segments in a training set; and the trajectory segments in the training set are obtained by segmenting historical trajectories based on characteristic points extracted from points on the historical trajectories according to spatial state and temporal state of the points.