| 研究生: |
吳柏賢 Wu, Po-Shien |
|---|---|
| 論文名稱: |
大腦核磁共振影像之二維對位比較 Two-dimensional image registration on MRSI metabolite concentration maps |
| 指導教授: |
蔡尚岳
Tsai, Shang-Yueh |
| 口試委員: |
馬文忠
Ma, WJ 林益如 Lin, Yi-Ru |
| 學位類別: |
碩士
Master |
| 系所名稱: |
理學院 - 應用物理研究所 Graduate Institute of Applied Physics |
| 論文出版年: | 2021 |
| 畢業學年度: | 109 |
| 語文別: | 中文 |
| 論文頁數: | 39 |
| 中文關鍵詞: | 二維對位 、三維對位 、對位 、相互資訊 、標準化相互資訊 |
| 外文關鍵詞: | Two-dimensional registration, Three-dimensional registration, Registration, Mutual information, Normalized mutual information |
| DOI URL: | http://doi.org/10.6814/NCCU202100531 |
| 相關次數: | 點閱:190 下載:7 |
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本論文旨在使用二維對位的方法下,以不同頭型切片作為模板,比較二維對位方法與三維對位方法之間的效果差異。再以切片厚度作為控制變因,使用不同厚度的切片進行對位,以判斷切片厚度對於對位的影響。對位完成後,將影像資料元素代入標準化相互資訊的公式,量化兩影像之間相似的程度,其後建立數值矩陣,計算各矩陣內元素的平均與標準差,比較各組數值之間差異,判斷使用二維對位方法時,其效果與三維對位的差距。
In this paper, using the two-dimensional registration method to compare the effect differences between the two-dimensional registration method and the three-dimensional registration method via using different head slices.Thesection thicknessis used as the control variable, and different slice thicknessare used for registration to determine the effect of section thickness on registration.After the registrationcompleted, Substitute theelements of image datainto the Normalized mutual information formulato quantify the degree of similarity between the two images.Then establish the numerical matrix, calculating the average and standard deviation of the elements in each matrix, comparing the difference between the values of each group, and judging the difference between using three-dimensional registration methodand two-dimensional registration method.
第一章 緒論 1
1.1 內容大綱 1
1.2 研究動機 1
1.3 研究目的 2
1.4 研究方法 2
第二章 方法與步驟 3
2.1 三維全腦對位 3
2.2 二維對位 14
2.3 標準化相互資訊 22
2.4 建立NMI數值矩陣 27
第三章 數據結果 28
3.1 取用與計算數值矩陣內元素 28
3.2 NMI數值矩陣之平均與標準差結果 29
第四章 結論 34
參考文獻 36
附件 37
附件A -二維對位 37
附件B -NMI算法一 38
附件C- NMI算法二 39
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