• 沒有找到結果。

本論文主要在於討論在模擬場景下的塔台辨識,利用模擬雷射測距儀來拍攝 塔台,用來得到距離影像與點雲資料,本論文有效的提出結構描述子與視角內插 法搭配傅立葉描述子,也在第四章根據距離的遠近來做比較,距離足夠近時利用 結構描述子,距離足夠遠時利用視角內插法搭配傅立葉描述子,最後再將這兩個 方法做合併提出一整合型方法可應用在距離從遠到近的變化,本論文所利用的結 構描述子與傅立葉描述子擁有較快的特徵抽取的速度,只要硬體設備的強化與軟 體方面做平行運算與最佳化的動作,本論文系統更可以達到使用者所需之時間要 求,但由於本論文在距離足夠近時,所使用之特徵都只有塔台的幾何特性與結構 特性,並沒有考慮到物體的材質與顏色的特性,而在距離足夠遠時只考慮塔台的 輪廓特性,並沒有考慮其深度資訊,且本論文在進行辨識時,都只有考慮當前的 資訊,並無考慮以前的資訊,即只使用單一時間點的觀測是不足的,循序估測是 必要的,例如本論文在第四章中第八部分所討論的相機姿態就是一個資訊,通常 在一個飛行軌跡中相機的姿態變化應該是連續的,即姿態變化不能太過劇烈,由 於本論文並無考慮以前的資訊,故在辨識正確率上無法有更好的突破。

所以在未來的發展上可以分成三個方向,首先在距離足夠近時,當使用點雲 資料時,不僅考慮塔台的幾何與結構資訊,也對其點雲資料賦予顏色或是材質的 資訊,第二個方向在於距離足夠遠時,不僅考慮輪廓的變化,也需要考慮深度的 變化問題,最後第三個方向在於進行辨識時可以加入以前的資訊,考慮了上述三 個方向,以及加入這些特性將可以提升本論文對於辨識系統的強健性,希望能夠 應用在真實的塔台上,來測詴本論文的效能,當然,應用在真實的場景中就必頇 先把塔台分割出來,以便於辨識時使用。

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