• 作者： 張榮森; 胡宇正; 林宸生
• 作者服務機構： 中央大學光電科學研究所
• 中文摘要： 本文中主要包含了兩部份，第一部份是我們提出了一種新的細線化方法，此種方法主要是依據我們發展的一種消除／保留法則來由原始影像中抽出條紋的骨架線。文中我們使用了一個測試影像來說明此種方法每一步驟的處理結果。第二部份就是利用以上方法，我們設計了一套影像處理程序，用來分析裂縫成長時的連續焦散圖形，並由電腦來計算各項所需的條紋資料。
• 英文摘要： A new methodology is developed for thinning fringes of caustics in the binary pattern, and a newsaving-deletion rule is utilized to extract the fringe skeletons from the original pattern. The method isapplicable to any orientation of the fringe. The various steps of the algorithm were used in processinga test image in the PC-base digital image processing system. According this method, we can analyzethe fringes of caustics and successfully improve the testing of fractures by using three steps: firstly, theimage of the caustic in the fracture mechanism is recorded using a video camera; secondly, the imagesand their process are obtained by a new thinning algorithm; and finally, the fringe data is obtained fromthe computer. Particular attention is given to the study of the violent variations of the crack tips in the fracture.Two types of caustics (reflection and transmission) are also discussed and applied in our system.
• 中文關鍵字： caustics; digital image processing; skeleton; new thinning algorithm; crack tips
• 英文關鍵字： --