- 學位論文
大小眼觀察家：多重解析度之投影攝影系統
e-Fovea:Multi-Resolution Projector-Camera System
摘要
在這篇論文中，我們根據人類的視覺系統，設計了一種多重解析度投影、攝影的系統，簡稱大小眼觀察家(e-Fovea)。在有關人類視覺系統方面的研究指出：當人眼在注視一事物時，其所看到的影像會有高低解析度上的差異，在注視的成像範圍內，會有較清楚且較高的解析度，而在注視範圍外的區域，則人眼所見是較為模糊且解析度較低的。同樣的，我們系統是以多重解析度的輸入與輸出裝置以達到模擬人類的視覺系統為主。在輸入裝置上，是用了一台廣角攝影機與一台高速球型攝影機，而輸出裝置，則是用了一台投影範圍較大但解析度較低的投影機，一台高解析度且投影範圍較小的可旋轉式投影機，其中，可旋轉式投影機的投影畫面可以藉由程式控制移動到大投影畫面的各個地方，使得那部分畫面以較高解析度來呈現，目標是產生一個低成本且易於使用者操作的投影攝影系統。我們介紹了兩個實驗來展示這個系統上實際使用的情形，且也做了使用者研究來驗證此系統的效能，在此論文中並提出了如何設置此一系統，校正多重解析度的輸入與輸出裝置。
並列摘要
In this paper, we proposed the e-Fovea, a multi-resolution projector-camera system. This system is designed in accordance with human visual perception system. Research on human visual perception system had conducted studies on the spatial variation in human visual resolution. Their studies had shown that only the fovea region of human eyes can afford sharp vision with acute visual details. In comparison, peripheral region of human eyes perceives rough percipience of the world with coarse visual details. Similarly, our system composed of a multi-resolution input channel and output display. The multi-resolution input channel consists of a wide-angle camera and a speed-dome camera. The multi-resolution output display consists of a fixed projector and a steerable projector. By the steerable projector, the high-resolution sub-view can move to various positions on the large display to “enhance” a certain local area. We want to create a cost-effective, attentive user interface that can help reduce human operator’s cognitive loads during their monitoring tasks. Two experiments are introduced to demonstrate the system. A user study is done to evaluate the performance of our system. We have shown in this thesis that the layout of the system and the technologies for the geometric calibrating input and output devices.