Method and program for assisting pattern drawing

模様描画支援方法/プログラム

Abstract

【課題】安価に、しかも、高い精度で、作業者が立体物の表面の所定の位置に模様を描画するのを支援する方法を提供する。 【解決手段】まず、カメラ12によって球10の画像を取得し、この画像から球10の空間位置を特定する。次に、模様を描画する位置がマークされた球10の計算用モデルを、特定した位置においてカメラ12で撮像したときに得られる画像を計算する。次に、取得した球の画像と、計算したモデルの画像を重ねて作業者に提示し、模様の描画を促す。作業者が模様を描画後、別の位置に模様を描画するために球10の姿勢を変えると、その状態で球10の画像を新たに取得し、既に描画済みの模様とそれに対応するマークが一致するようにモデルの姿勢を変え、これをカメラ12によって撮像したときの画像を計算する。次に、新たに取得した球10の画像と新たに計算したモデルの画像を重ねて作業者に提示し、模様の描画を促す。 【選択図】 図1
<P>PROBLEM TO BE SOLVED: To provide a method for inexpensively assisting drawing of a pattern at a predetermined position on the surface of a stereoscopic object by an operator in high accuracy. <P>SOLUTION: The method for supporting the drawing of the pattern includes acquiring an image of a sphere 10 by a camera 12, and specifying a spatial position of the sphere 10 from this image. The method includes calculating the image obtained when a calculating model of the sphere 10 in which the position for drawing the pattern is marked, is photographed at a specified position by the camera 12. The method includes superposing the image of the acquired sphere and the image of the calculated model to propose the image to the operator, and prompting the operator to draw the pattern. After the operator draws the pattern, when the attitude of the sphere 10 is changed to draw the pattern at another position, the image of the sphere 10 is newly acquired in this state, the attitude of the model is changed so that the already drawn pattern coincides with the mark corresponding to the pattern, and the image when this is photographed by the camera 12 is calculated. Then, the image of the newly acquired sphere 10 and the image of the newly calculated model are superposed to propose the image to the operator, and drawing of the pattern is prompted. <P>COPYRIGHT: (C)2005,JPO&NCIPI

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