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1. (WO2018051944) PEOPLE FLOW ESTIMATION DEVICE, PEOPLE FLOW ESTIMATION METHOD, ABD RECORDING MEDIUM

Pub. No.:    WO/2018/051944    International Application No.:    PCT/JP2017/032664
Publication Date: Fri Mar 23 00:59:59 CET 2018 International Filing Date: Tue Sep 12 01:59:59 CEST 2017
IPC: G06T 7/20
Applicants: NEC CORPORATION
日本電気株式会社
Inventors: IKEDA Hiroo
池田 浩雄
Title: PEOPLE FLOW ESTIMATION DEVICE, PEOPLE FLOW ESTIMATION METHOD, ABD RECORDING MEDIUM
Abstract:
An approximate positions-of-people determination means 22 corrects the number of people in each partial area to an integer, determines approximate positions of the corrected number of people on an image on the basis of information about the partial area, and calculates a number-of-people correction coefficient on the basis of the numbers of people before and after the correction, and it is assumed that people have been observed at the approximate positions. A states-of-people estimation means 25, in addition to predicting the current states of particles from the states of particles indicating past states of people and stored in a storage means, adds new particles and evaluates the likelihood of the states of predicted particles and the added particles on the basis of an observation model generated for the observed people and the number-of-people correction coefficient to update the weights of the particles, performs particle re-sampling at a probability proportional to the weights of those particles, and stores the states of the obtained particles into the storage means as well as outputs the states of the obtained particles as a flow of people.