@article{oai:fukuyama-u.repo.nii.ac.jp:00008114,
 author = {藤谷, 学 and 大西, 芳幸 and 服部, 進},
 journal = {福山大学工学部紀要},
 month = {Dec},
 note = {P(論文), The precise coordinate measurement of target images is the most crucial factor affecting the performance of camera calibration in vision metrology. Simple binarization techniques to extract target images to pinpoint the center do not work well, when they dot the bright background. In this paper a precise measurement algorithm of target images is discussed by use of the Laplacian of Gaussian (LoG) filter. A window is taken to include each target image is filtered with a LoG filter and its periphery is extracted. The centroid of pixel intensities inside the periphery is calculated. According to an experiment on camera calibration in a two-dimensional target space with bright background, 0.04mm of a posteriori precision of image point coordinates was obtained.},
 pages = {137--142},
 title = {カメラキャリブレーションのためのターゲット中心座標の精密計測},
 volume = {26},
 year = {2002}
}