create surfaces 中文意思是什麼
create surfaces
解釋
創建曲面-
The excess water delivered through the buttresses emerges at the apex or head stone and overflows down their outer surfaces to create a contrasting movement or feature
過量水被交付通過支柱涌現在尖頂或頭石頭和溢出在他們的外表面下創造一個對比的運動或特點。 -
To create geometry images of point cloud surfaces, we first determine the center of the polar coordinates and convert the cartesian coordinates [ x, y, z ] to polar ones r, coordinate is encoded as the location and r is encoded as the gray value in the image. to represent point cloud surfaces with high complexity, we propose using multi - layered images
根據笛卡爾坐標和極坐標之間的轉換關系，三維坐標[ x ， y ， z ]首先被轉換成[ r ， ， ] ，其中[ ， ]被轉換成幾何圖象中的象素坐標， r轉換為該象素的灰度值，生成幾何圖象。 -
The doctors can observe the relationship and geometry of the organs and the tumors, from the 3d model of the human body, which can help them create the therapy plan. the radiation dosimetry is built using monte carlo method. after we extract the iso - surfaces from the volume of the doses, the relationship between radiation doses and the cancer is represented on a 3d model, which is greatly helpful for the doctors to improve their therapy plan
通過建立三維人體模型，可以幫助醫生直觀的觀察人體內部病灶及組織器官的形態位置尺寸，並獲得其量化指標，從而更加準確的制定治療計劃：根據初步的放療計劃，使用montecarlo方法建立模擬的放射劑量分佈數據場，再通過等值面提取方法獲得等劑量面，顯示並量化劑量分佈情況和病灶（靶區）的關系；根據模擬的結果對放療計劃進行適當修改，並最終獲得最佳的放射治療計劃。 -
We combine the algorithm of ray casting and z - buffer to rebuild 3d data, and use marching cubes to create iso - surfaces in 3d regular data sets. several common spatial interpolation are discussed in this thesis, and the famous kriging algorithm in the geological statistics is the emphasis. - four interpolations are used in the case of study, and the results are compared in this thesis
在系統實現中，針對兩類演算法的不同特點，在不同的模塊中選用了兩類演算法中的經典演算法：提出將光線投射法與z - buffer演算法結合實現三維體數據重建；使用移動立方體法實現三維數據場的等值面繪制。
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