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    Please use this identifier to cite or link to this item: http://ccur.lib.ccu.edu.tw/handle/A095B0000Q/269


    Title: 基於相位移結構光掃描技術應用於人體表面快速重建;A Phase-Shifting Structure Light Based Scanner Applied to Fast Reconstruct Body Surface
    Authors: 楊哲丞;YANG, CHE-CHENG-
    Contributors: 機械工程系研究所
    Keywords: 相位移技術;表面重建;結構光;呼吸追蹤;Phase-shift Technology;Surface Reconstruction;Structured Light;Respiratory Movement Tracking
    Date: 2017
    Issue Date: 2019-07-17
    Publisher: 機械工程系研究所
    Abstract: 本研究目的為開發一套非侵入式的呼吸追蹤系統,追蹤患者在進行放射治療時的腫瘤位置,由於腫瘤會隨著呼吸運動在體腔內位移,因此患者需要在正確的時間接受放射線,避免放射治療時攻擊到正常的細胞組織。本研究利用相位移結構光掃描技術重建人體表面並使用貼附於人體皮膚的標記點(Marker)表示呼吸狀態,Marker會在手術前投影到4D CT的模型上產生虛擬Marker。在呼吸追蹤時,利用人體皮膚上的真實Marker與虛擬Marker進行比對找到最接近的CT模型,藉此得知患者的呼吸狀態以及腫瘤位置是否在預定照射放射線的位置。本研究所開發的系統在讀取手術規劃的放射角度後可以運用於手術模擬以及教育訓練,此外本研究利用馬達機構實驗動態追蹤Marker的準確性,追蹤結果與理想波形有0.9994的正相關性。
    The purpose of this research is to develop a non-invasive respiratory tracking system to track the position of the tumor during radiation therapy. Because the tumor would move with respiratory movement in the body, the patient needs to receive the radiation at the correct time window to prevent the normal cell tissue from getting hurt.We use the phase-shift technology to reconstruct the skin of the human body with markers attached to the human body. The markers will be projected to the STL skin model from 4D CT to generate virtual markers. While doing respiratory tracking, the system will use the markers on the body to match the virtual markers and find the closest STL model. Such corresponding STL model can be used to find the tumor at the right position for radiation projection. Our system can read the angles of radiation of surgical planning and use that information in surgical simulation and educational training. Furthermore, we use a motor mechanism to assess the accuracy of the marker tracking. The result shows that the PCC correlation of the tracking was found to be 0.9994 correlation with the ideal waveform.
    Appears in Collections:[機械工程學系] 學位論文

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