• 沒有找到結果。

本文利用 K-means 擅長作分群的特性與 SLIC 超像素的加速方法作為影像的 初步分割,再搭配日亦普及的深度影像資訊來輔助,作為區塊是否合併的主要依 據。由於超像素方法處理容易造成過度分割的現象,如何將這些區塊作有效的合 併自然成為一個重要的環節。本文結合深度與色彩訊息,提出四分位數統計方法 達到物體的外框大多都可分割出來,有利於後續的影像分析與檢索。

本文方法尚有一些需要改善之處,物件的完整切割除了仍需仰賴少許的參數 外,所提方法對於深度資料的使用比重相對較高,如何獲得良好的深度資料是一 個重要的前提。在深度資料變化不明顯的情況下,合併方法便容易產生誤判。若 深度影像的空洞區域過大,排除空洞資訊的效果容易受到影響,如何改善深度影 像品質問題是未來要繼續努力的方向。其次,超像素方法會將影像分成許多的區 塊,有些區塊會被切的比較細小,原本應該要與相鄰區塊合併起來,但因區域數 值少容易造成統計出來的四分位數與相鄰區塊差異過大,可能造成錯誤合併的結 果,此一問題值得後續進一步作探討。

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