今日的設計流程由於電腦輔助設計(computer-aided design, CAD)以及電腦輔助工程(computer-aided engineering, CAE)等系統的廣泛介入，使得從構想發展到生產製造的過程更加迅速且更有效率。而在設計初期的發想階段(concept design)，手繪草圖(sketch)是幫助設計師發想的重要工具，但在草圖完成並進入三維建模(3D modeling)階段時，目前並沒有任何能夠提供協助的系統，亦即目前三維建模系統無法沿用發想草圖的資料，造成設計流程上的斷層，並產生時間及精力的浪費。
在以草圖為介面之建模系統(sketch-based interface modeling, SBIM)的領域中，以輸入單一視角(single-view)草圖並重建其在空間中之三維資料(3D reconstruction)的相關研究最具發展性，因此本研究發展一套以單一視角草圖重建為基礎之建模系統，提出以應用模糊理論於視覺認知模型為基礎的單一視角重建系統，提供設計師更直覺的建模環境，並增加了設計師對其所設計之造型的掌握能力，也大幅減短了設計流程中所需的時間。

Nowadays, the heavily relying of CAD and CAE system has led the better efficiency and faster process of product design from concept to manufacturing. However, current 3D modeling systems are unable to interpret the data from sketches drawn at the early stage of design (concept design stage). The gap of the design process generated by the discontinuousness of data flow causes much waste of labor and time.

Thus, more and more attention has been drawn by the field of sketch-based interface modeling (SBIM). This research focuses on the development of sketch-based modeling system by single-view reconstruction. We propose a method of applying fuzzy logic on visual perception model based system. By entering single sketch, our system automatically generates the 3D model configuration of the input sketch. Therefore, the efficiency of design process is promoted due to the more intuitional modeling environment.

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