Triangularization algorithm with solvable mark to bilinear equations 求解雙線性方程的帶可解標記的三角化算法
The stl file is a triangularization representation of cad model surface . using it to represent cad model will reduce the part precision Stl文件是cad模型表面的三角化表示,無疑會造成精度損失。
Secondly , some techniques for image segmentation , such as edge - detection , grayscale thresholding and texture , are represented in detail . in the third part , two primary ways are designed for 3d modeling , one is based on the contours triangularization while the other is based on the iso - surfaces extraction . we use a condensed history monte carlo method to calculate and build up the radiation dosimetry , which is a regular data set suitable for creating the iso - surfaces 論文首先介紹了醫學影像的獲取和預處理的方法,包括dicom標準、醫學影像的圖像增強及圖像校正等內容;提出了基于邊緣提取、灰度閥值和紋理信息等原理的器官分割方法;為了建立三維人體模型,介紹了兩類方法;基于輪廓線的方法和基于等值面提取的方法;在建立放射劑量場時,使用了經典的montecarlo方法;最后,詳細介紹了傳統的等值面提取方法( marchingcubes ) ,并提出了一種啟發式搜索的marchingcubes方法。