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立體顯像操控實現討論

第四章 裸視立體顯像之實現與討論

4.3 立體顯像操控實現討論

研究者可以將器官視角轉動至想診視的病變發生點,此病變點原本在 2D 影像中

第五章

結論與未來發展

現代的電子商品一直在追求隨身方便攜帶、易操控使用、觸控式螢幕、集多 功能於一機等,還有畫面要畫質越來越高、更加逼真、更加自然且能夠符合人類 雙眼所見真實且實際的影像,因此近來智慧型手機,高畫質電視和個人隨身帄板 電腦開貣了一陣電子瘋潮,而 3D 顯示技術也隨之迅速蓬勃發展,各大廠商無不 推陳出新各種新一代的 3D 電視、3D 筆記型電腦或是 3D 手機等,但是目前市場 主流的產品仍是以戴眼鏡 3D 為主,乃因戴眼鏡 3D 技術較為成熟和成像效果比 較好,不過我們在觀看畫面影像時,在眼前帶上一副 3D 眼鏡實在很不方便,雖 然現在新一代的 3D 立體眼鏡越做越輕薄,但長時間戴著一副眼鏡,仍然會對人 體頭部帶來不小負擔、造成諸多不適感、甚至是頭暈目眩等,所以這些戴眼鏡 3D 產品使用說明書上常常有附註一條長時間使用時頇定時休息的建議。為了解 決這個困擾,近年來裸視 3D 的產品開始陸續被研究和推出,打著無頇戴上 3D 眼鏡為號召做為宣傳。此外,在論文與學術方面,各類虛擬 3D 建模也風行了好 長的一段時間,例如建築物、2D 照片轉 3D 或是醫學影像立體三維重建等,許 多相關文獻中都在討論如何用更有效、準確和快速的方法來做出虛擬 3D 模型,

但是至今為止,討論的範圍大多仍屬於 2D 畫面中的虛擬 3D 建模,而不是屬於 真正的實體 3D 建模。在醫學方面,現今醫生在替病患做腫瘤的檢查時,常常是 以雙手去按壓並且配合電腦斷層掃描圖去分析病情,但是如此做法並無法很清楚 的明瞭病患腫瘤發生處實際內部的情況,若是我們可以將病患發生腫瘤部位內部

的情形與空間結構以 3D 方式建構出來,再以裸視 3D 影像呈現出,並配合醫生 的專業,如此一來將會對醫生的醫療診斷正確率有大大的幫助,提昇了醫療的品 質。

有鑑於以上幾點,本論文提出了一個柱狀透鏡之即時裸視立體顯像操控程式 做為應用例,設置了多功能物體操控模式,擁有橫切面輪廓線、物件個別分離觀 看和三維空間中任意視角觀看功能,並且本論文將此操控程式的輸出畫面結合裸 視 3D,提供使用者一個嶄新的立體視覺效果,跳脫出傳統的 2D 畫面,為往後 的研究者提供了一個應用例可供參考或套用。另外,此程式屬於一個基礎開發帄 台,因此最底層的測式軟體使用 MATLAB 軟體,MATLAB 軟體具有簡單的程式 語法結構、高性能的數值分析能力、強大的繪圖功能和系統建模與模擬技術,非 常適合影像或非影像處理者使用,能夠輕易上手。最後,除了據有深度資訊的裸 視 3D 模型外,此程式還有另外建立對應的帄面虛擬 3D 模型,使用者能夠依據 上述程式的操作功能,將兩種影像同時做仔細的檢查與比對,增加使用者對建立 模型的三維空間結構和排列情形更加了解。

在未來的發展上,可以將此裸視 3D 顯像操控程式結合機械式手臂,來輔助 醫生進行腫瘤切除、傷口處理或是組織縫合等艱困的手術,裸視 3D 顯像可以幫 助醫生判別手術進行時病患傷患部位的情形。另外,將裸視 3D 顯像操控程式用 於 內 視 鏡 微 創 手 術 上 , 藉 由 3D 實 體 虛 擬 , 就 可 以 先 為 病 患 身 體 做 最 精 密 的 治 療 規 畫 與 手 術 的 模 擬,將 可 以 降 低 手 術 的 風 險,並 獲 得 更 好 的 手 術 效 果 , 不 僅 可 以 使 手 術 的 時 間 縮 短 , 同 時 還 能 提 升 醫 療 品 質 。

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[40] 資料來源: Google map 提供的 3D 街景,地點為台北車站前忠孝東路。

[41] 資料來源: this is a file from the Wikimedia Commons by A. H. Hornig。

[42] 資料來源: these three file are from the Wikimedia Commons. original author was Wapcaplet at en.wikipedia。

[43] 資料來源: interaction research group dynamic graphics project department of computer science - volumetric user interfaces。