An Interactive Point-Picking Method by Combining 2D and 3D Views of a Slice Geometry  

作　　者：QIAN Hong-bo LIU Hao LU Wei-ju LU Guang-ming ZHAO Jian-ning 

机构地区：[1]Second Military Medical University, Shanghai 200433, China [2]Department of Orthpaedics Surgery, Nanjing General Hospital of Nanjing Military Command, Nanjing 210002, China [3]College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics ＆ Astronautics, Nanjing 210016, China [4]Department of Medical Imaging, Nanjing General Hospital of Nanjing Military Command, Nanjing 210002, China

出　　处：《Chinese Journal of Biomedical Engineering(English Edition)》2011年第3期93-102,共10页中国生物医学工程学报（英文版）

摘　　要：Interactive picking is a fundamental task for processing and images. Combining two-dimensional （2D） and three-dimensional digital graphics （3D） views is an important trend in processing medical sliced-geometries. With the goal of accurately picking points in sliced-geometries, we present a method to pick points interactively by combining 2D and 3D views of sliced-geometries. Four view windows are constructed to render sliced-geometries using medical imaging interaction toolkit （MITK）： three for 2D slices parallel to the XY, YZ, and XZ planes and one for surface rendering. Points picked in a view window can be rendered and modified in any window. After a point is picked, it is immediately converted into a world coordinate and stored. Points are only rendered and modified based on their world coordinates. This picking method can be used for fitting, observing, and measuring local regions. This method can also be used for interactive segments. Our experiment shows that the picking method is accurate and has a real-time picking effect.Interactive picking is a fundamental task for processing digital graphics and images. Combining two-dimensional (2D) and three-dimensional (3D) views is an important trend in processing medical sliced-geometries. With the goal of accurately picking points in sliced-geometries, we present a method to pick points interactively by combining 2D and 3D views of sliced-geometries. Four view windows are constructed to render sliced-geometries using medical imaging interaction toolkit (MITK): three for 2D slices parallel to the XY, YZ, and XZ planes and one for surface rendering. Points picked in a view window can be rendered and modified in any window. After a point is picked, it is immediately converted into a world coordinate and stored. Points are only rendered and modified based on their world coordinates. This picking method can be used for fitting, observing, and measuring local regions. This method can also be used for interactive segments. Our experiment shows that the picking method is accurate and has a real-time picking effect.

关 键 词：PICK interaction sliced-geometries MITK RENDER 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] S666.109.3[自动化与计算机技术—计算机科学与技术]