CONTROL DEVICE, CONTROL METHOD, AND PROGRAM

• Main Author: SHIBAZAKI AKIRA
• Format: Patent
• Language: English; Japanese
• Published: 02.12.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To reduce the number of times of imaging for illuminance correction than before.SOLUTION: A control device includes: control means that controls an illumination device including a plurality of light sources and an imaging apparatus having an optical system in which an optical axis of a lens and a main light beam are parallel on an incident side of the light, and obtains a first number of reference images corresponding to each of the first number of light sources, which are obtained by imaging a reference object while the first number of light sources among the plurality of light sources are turned on one by one; and generation means that generates correction data for obtaining information on reflection characteristics of an object to be measured, corresponding to the light source used when imaging the object to be measured different from the reference object among the plurality of light sources of the illumination device on the basis of the first number of reference images. The correction data includes the first number of reference images and an image derived by interpolation processing using at least two of the first number of reference images.SELECTED DRAWING: Figure 1 【課題】照度補正のための撮像の回数を従来よりも少なくすること。【解決手段】制御装置であって、複数の光源を含む照明装置と、光の入射側でレンズの光軸と主光線とが平行となる光学系を有する撮像装置とを制御し、前記複数の光源のうち第１の数の光源を１つずつ点灯させた状態で基準物体を撮像して得られる、前記第１の数の光源のそれぞれに対応する前記第１の数の基準画像を取得する制御手段と、前記第１の数の基準画像に基づいて、前記照明装置の複数の光源のうち前記基準物体とは異なる測定対象物体の撮像時に使用する光源に対応する、前記測定対象物体の反射特性情報を得るための補正データを生成する生成手段と、を備え、前記補正データは、前記第１の数の基準画像と、前記第１の数の基準画像のうちの少なくとも２つ以上を用いた補間処理によって導出された画像とを含むことを特徴とする。【選択図】図１