公开(公告)号：US11164335B2

公开(公告)日：2021-11-02

申请号：US16181744

申请日：2018-11-06

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Xin Zhang ,  Peng Gao ,  Zhi Hu Wang ,  Ning Duan ,  Gang BJ Ning ,  Yan Fang

IPC: G06T7/77 ,  G06N7/00

Abstract: A computer-implemented method is presented for inferring passenger routes in a subway system. The method includes identifying, via an imaging device, a target passenger within the subway system, employing an exiting flow extractor to determine passenger exiting waves, employing an exiting wave identifier to mark an exiting wave of the passenger exiting waves including the target passenger, employing a supporting evidence backtracer to determine an entrance gate for each of the passengers in the marked exiting wave including the target passenger, determining a route probability for each of the passengers in the marked exiting wave including the target passenger via voting or distribution estimation processing, and employing a most probable route inferer to infer a route of the target passenger based on an aggregate route probability for all the passengers in the marked exiting wave.