@article{oai:kanazawa-u.repo.nii.ac.jp:00009390,
 author = {大滝, 誠 and 伊澤, 昌敏 and 森重, 功一 and 浅川, 直紀 and 竹内, 芳美},
 issue = {11},
 journal = {精密工学会誌 = Journal of the Japan Society for Precision Engineering},
 month = {Jan},
 note = {The study deals with X-ray CT technology to inspect the inside parts of workpiece without destroying them. At present, there is few softwares capable of processing X-ray CT scanned data. Therefore, the function was developed to treat the data to evaluate geometric elements such as straight lines, circular arc and others, based on 3-dimensional CAD data as the standard of inspection. After the coordinate system of scanned data is automatically related with the 3-dimensional CAD data, the system evaluates geometric elements considering that a workpiece contour consists of a cluster of segments. Thus, the system cuts the contour of 3-dimensional CAD data on the appointed cross-sectional planes and classifies them into geometric elements. To compare 3-dimensional CAD data with the X-ray CT scanned data, the system calculates the straightness, angle deviation from the direction vector, length and its error of a straight line, and, roundness, deviation of center point, radius and its elTor. In addition, the system offers a visualization interface to display them so that the users utilize the evaluated result comfortably. As a result, the system is found effective to evaluate 2-dimensional geometric elements.},
 pages = {1584--1588},
 title = {X線CTスキャナを用いた3次元CADデータに基づく内部形状評価},
 volume = {65},
 year = {1999}
}