由於樹本身複雜的結構，因此在電腦圖學中，樹的繪製仍然是個難解的問題。在本篇論文中，以一段繞樹拍攝和另一段環樹拍攝的影片，我們能夠合成出一段連續的畫面來模擬出使用者在樹周圍移動的視覺效果。我們從原本的影片中擷取出一個單一的畫面，並以之為起始影像。接著根據使用者所選定的移動路徑，我們從原本的影片合成出相對應的像素移動模式。將影像中的像素根據合成出來的移動模式作相對應的位移便可以產生使用者在虛擬環境中移動的視覺效果。這樣的合成方式並不能產生完整的影像，有許多洞充斥其中，因此在本篇論文中提供數種方法來合成出所需要的資訊。

Tree-rendering is still an open problem because of high complexity and fractal-like structure consisted in a tree. With two image sequences describing moving paths around a tree and toward a tree, we can synthesize an image sequence that a user walking in the space spanned by the two paths of the two image sequences. Our algorithm works by extracting one image from the source image sequence, and driving pixels in that image with a sequence of displacement field constructed from the original image sequence that corresponds to the desired path specified in advance. Holes are occurred due to this unstable synthesis process, so several methods are presented to synthesize needed information i.e. displacement, color for holes for further synthesis process.

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