THREE-DIMENSIONAL SHAPE DATA GENERATION DEVICE

• Main Authors: IMAI RYOSUKE, ITO RYOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 11.04.2024
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

To acquire texture information on a measurement object without using a separate camera such as a color camera while suppressing deterioration in measurement accuracy due to ambient light.SOLUTION: A 3D shape data generating device 1 comprises a bandpass filter 122 having as a transmission band: a wavelength band of a predetermined width that includes the peak wavelength of structured light; a wavelength band with a predetermined width including the peak wavelength of first illumination light; a wavelength band with a predetermined width including the peak wavelength of second illumination light; and a wavelength band with a predetermined width including the peak wavelength of third illumination light. An imaging unit 120 generates pattern image data by receiving the structured light that has passed through the bandpass filter 122, and generates texture image data by receiving observation illumination light. Composite data is generated by combining three-dimensional shape data generated based on the pattern image data and texture data generated based on the texture image data. The composite data is displayed on a display unit 400.SELECTED DRAWING: Figure 2 【課題】外乱光による測定精度の悪化を抑制しつつ、カラーカメラ等の別カメラを用いることなく測定対象物のテクスチャ情報を取得できるようにする。【解決手段】立体形状データ生成装置１は、構造化光のピーク波長を含む所定幅の波長帯域と、第１の照明光のピーク波長を含む所定幅の波長帯域と、第２の照明光のピーク波長を含む所定幅の波長帯域と、第３の照明光のピーク波長を含む所定幅の波長帯域とを透過帯域として持つバンドパスフィルタ１２２を備えている。撮像部１２０は、バンドパスフィルタ１２２を透過した構造化光を受光することによりパターン画像データを生成するとともに、観察用の照明光を受光することによりテクスチャ画像データを生成する。パターン画像データに基づいて生成された立体形状データと、テクスチャ画像データに基づいて生成されたテクスチャデータを合成して合成データを生成する。合成データを表示部４００に表示させる。【選択図】図２