FIELD ANGLE ADJUSTMENT DEVICE FOR CAMERA IN ELEVATOR CAR AND FIELD ANGLE ADJUSTMENT METHOD FOR CAMERA IN ELEVATOR CAR

摘要

PROBLEM TO BE SOLVED: To easily perform camera adjustments by reducing data which should be given beforehand, as further as possible.;SOLUTION: A field angle adjustment device for a camera in an elevator car includes: a distortion parameter estimation section (12) for estimating a distortion parameter from an image in the car as such a conversion coefficient as to linearize a portion that is imaged as a curve; a distortion correction section (13) which uses the distortion parameter to generate an image after distortion correction from the image in the car; a depression angle estimation section (15) which extracts a plurality of linear portions from the image after the distortion correction and estimates a depression angle of the camera on the basis of a position of a dissipation point that is calculated as an intersection of the plurality of linear portions, and a focal distance of the camera; a target depression angle comparison section (16) which makes a depression success/failure determination in accordance with whether a present depression angle of the camera is settled within a range of a target depression angle; and a display control section (18) by which, in the case where a result of the success/failure determination is a failure, a message specifying a direction in which the depression angle should be adjusted is displayed on a display section (2).;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2016,JPO&INPIT