- 期刊
- OpenAccess
3D掃描技術於史前陶片紋飾記錄之應用－以文物保存科學觀點
3D Reconstruction Methods Used for Documenting and Inspecting the Inscriptions on the Potsherds-From the Perspective of Cultural Heritage Conservation
摘要
本研究主要探討不同3D掃描技術對於史前陶片表面紋飾的記錄能力，研究方法是採用不同掃描原理與解析度之商用3D掃描儀，對不同寬淺紋飾之史前陶片進行掃描記錄，並將掃描結果進行套合比對，以了解不同掃描儀對相同陶片紋飾記錄結果之差異。選用之3D掃描儀包含1臺紅外線結構光掃描儀、2臺白光結構光掃描儀、1臺雷射掃描儀共4臺3D掃描儀與數位影像建模方式，以考古出土之夾砂紅陶的數種紋飾為案例進行測試。由檢測結果可知各3D掃描儀對陶片外部尺寸量測方面差異性較小，但對於紋飾之凹痕深度與邊緣形狀則出現若干差異，且隨著深度的增加，各3D掃描儀掃描結果的差異性也越趨明顯。依本研究之掃描與比對結果，希冀考古研究人員利用3D掃描結果或直接採用網路發布之數位典藏立體影像進行考古研究時，應考量數位資料與實物之差異，且希望本研究成果能提供文化資產保存工作人員之參考，以妥善規劃史前陶片3D掃描工作。
並列摘要
The goal of this study is to evaluate the capability of commercial 3D scanners for documenting the inscription on potsherds. Total seven potsherds are utilized in this study to evaluate the capability of different 3D scanners for documenting and recording the potsherds. The potsherds are scanned and recorded by four different 3D scanners and one Image-Based-Modeling (IBM). The 3D scanners used in this study comprises one IR structured light scanner, two white structured light scanner, and one laser scanner. The 3D models created by 3D scanners and IBM are aligned and evaluated in commercial computer software. According to the analyzing results, for the specific specimen (potsherd), the 3D models created by different 3D scanners have extremely similar exterior size; however, the depths of the inscription on the same potsherd acquired by the same scanners are dissimilar and inexact. It is expected that the evaluation results of this study will be helpful for conservators to plan and perform 3D scanning project on cultural heritages.