Literature from Western nations has consistently implicated parental monitoring (both communication and supervision) as both a primary and a secondary protector against adolescent risk behavior [1–3]. The relationship between parental monitoring and adolescent risk involvement persists across ethnic and racial groups [4,5]. The robustness of this association in the United States is somewhat sur...

Tourism brings about great economic benefits. However, it inevitably causes severe environmental issues at the same time as it consumes energy and produces emissions, which would impact the tourism areas in many respects negatively. As for a region entitled as the world heritages of the nature and culture, the issue of energy reduction and dependency of the economies on energy has made the need...

The self-similarity of Indonesian Borobudur Temple is observed through the dimensionality of stupa that is hypothetically closely related to whole architectural body. Fractal dimension is calculated by using the cube counting method and found that the dimension is 2.325, which is laid between the two-dimensional plane and three dimensional space. The applied fractal geometry and self-similarity...

Several methods perform the integration of multiple range scans of an object aiming the generation of a reconstructed triangle mesh; however, achieving high fidelity digital reconstructions is still a challenge. That is mostly due to the existence of outliers in the acquired range data, and their harmful effects on the integration algorithms. In this work, we first discuss artifacts usually fou...

本論文では複数方向から測定された大規模距離画像の同時位置合わせ手法及び誤差補正手法を提 案する.同時位置合わせ手法には,視線方向探索を用い,点と面の距離を評価関数とした手法を用い た.対応点探索の際にインデックス画像を用いる事で,正確なセンサパラメータを必要とせずに高速 な計算が可能である.また,計算時間とメモリ使用量を考慮した並列同時位置合わせ手法を開発した. 距離画像間の関係を組合せグラフとして定義し,グラフ分割の手法を用いる事によって最適な負荷, データ分散を実現している.誤差補正手法では,測定誤差が視線方向に主に分布している事を利用し て,視線方向探索によって得られた対応点から正しい位置を推定する.異方向性誤差による誤対応問 題を避けるために,反復計算によって誤差の補正を行う.最後に本手法を用いて文化遺産をモデル化 した例を示し,提案する手法の有効性を確認する.また,生成した...

Abstract: In this paper, we propose a novel type of 3-D scanning system named Ladder-type laser scanning system. This system was designed for scanning narrow and vertically stalky spaces. The climbing sensor equips a platform with two line scanners on a lift, and they scan the whole target while the lift moves vertically. By using spatio-temporal range image we can accurately calculate the spee...

White and black deposits have been frequently observed on the surface of Korean stone cultural heritages, and they are considered as damage factors in both conservation and esthetic points of view. In order to set up the appropriate conservation remedy, it is important to know their origins, characteristics, and compositions. In this study, optical and scanning electron microscopes (SEMs) equip...