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1. (WO2017170007) MONITORING DEVICE, MONITORING METHOD, AND RECORDING MEDIUM

Pub. No.:    WO/2017/170007    International Application No.:    PCT/JP2017/011316
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Thu Mar 23 00:59:59 CET 2017
IPC: H04N 7/18
G08B 25/00
G08B 25/04
G10L 25/51
Applicants: NEC CORPORATION
日本電気株式会社
Inventors: ARAI Yumi
荒井 友督
KONDO Reishi
近藤 玲史
SENDA Yuzo
仙田 裕三
Title: MONITORING DEVICE, MONITORING METHOD, AND RECORDING MEDIUM
Abstract:
Because a monitoring device is required to have extremely high accuracy with respect to camera and microphone positions and directions at the time of installation in order to perform accurate control, this monitoring device is provided with an acoustic signal acquisition means for acquiring an acoustic signal, an acoustic event detection means for calculating the occurrence direction of an acoustic event from the acquired acoustic signal, an image signal acquisition means for acquiring an image signal, an image event detection means for calculating the occurrence direction of an image event from the acquired image signal, a mapping relationship calculation means for calculating a mapping relationship on the basis of the calculated occurrence direction of an event to be calibrated from among acoustic events and the calculated occurrence direction of an event to be calibrated from among image events, and a coordinate conversion means for estimating the occurrence direction of an event to be detected from among the image events using the calculated mapping relationship and the calculated occurrence direction of an event to be detected from among the acoustic events.