CALIBRATION REFERENCE POINT ACQUISITION SYSTEM AND CALIBRATION REFERENCE POINT ACQUISITION METHOD

• Main Authors: HOTTA YUKI, KISHIWADA JUN
• Format: Patent
• Language: English; Japanese
• Published: 19.09.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

To improve acquisition accuracy of a calibration reference point.SOLUTION: A calibration reference point acquisition system according to an aspect of the disclosed technology is a calibration reference point acquisition system for acquiring a calibration reference point for calibrating geometric distortion of an imaging device, the calibration reference point acquisition system including: pattern light display means for displaying pattern light to be imaged by the imaging device; relative posture variable means for varying a relative posture between the imaging device and the calibration reference point acquisition system; and processing means for calculating the calibration reference point on the basis of an image of the pattern light imaged by the imaging device while varying the posture. The pattern light display means displays the pattern light by adjusting an amount of light forming the pattern light for each region in a multi-stage manner.SELECTED DRAWING: Figure 4 【課題】校正基準点の取得精度を向上させることを課題とする。【解決手段】開示の技術の一態様に係る校正基準点取得システムは、撮像装置の幾何歪を校正するための校正基準点を取得する校正基準点取得システムであって、前記撮像装置に撮像させるパターン光を表示するパターン光表示手段と、前記撮像装置と前記校正基準点取得システムとの相対的な姿勢を変化させる相対姿勢可変手段と、前記姿勢を変化させながら、前記撮像装置が撮像した前記パターン光の画像に基づき、前記校正基準点を算出する処理手段と、を有し、前記パターン光表示手段は、前記パターン光を形成する領域毎の光量を、多段階に調整して、前記パターン光を表示することを特徴とする。【選択図】図４