PROBLEM TO BE SOLVED: To provide a method for continuously measuring change in growth of a plant body by which the change in growth of the plant body is accurately and continuously grasped.SOLUTION: The method for continuously measuring change in growth of a plant body comprising longly and continuously measuring change in the three-dimensional formation of a plant body, comprises: continuously taking pictures of the plant body from a prescribed position at fixed intervals at night using an RGB digital camera and calculating an image digital number, an ISO sensitivity value, an F value and exposure time with respect to a fixed area in a recorded image. An NIR camera provided with a near-infrared band-pass filter having a center wavelength of 700-1,000 nm is preferably used as a substitute for the RGB digital camera. The device for longly and continuously measuring the three-dimensional formation change of the plant body includes the RGB digital camera and/or the NIR camera, a camera platform on which the camera is mounted, and a battery generating electric power by solar light.COPYRIGHT: (C)2011,JPO&INPIT【課題】植物体の生育変化を、正確にかつ連続して把握する方法を提供する。【解決手段】植物の生育変化を連続的に測定する方法において、RGBデジタルカメラを用いて、夜間に植物体を一定位置より定時に連続して撮影し、記録された画像上の一定領域の画像デジタルナンバー、ISO感度値、F値、露光時間を演算することを特徴とする、植物体の三次元形態変化の長期連続測定方法であり、さらに前記RGBデジタルカメラに替えて中心波長700~1000nmの範囲の近赤外バンドパスフィルターを備えたNIRカメラであることがより好ましい。さらに前記RGBデジタルカメラ及び/又はNIRカメラと、該カメラを装着する雲台と、太陽光で発電するバッテリーとを備えた植物体の三次元形態変化の長期連続測定装置である。【選択図】図13
