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	An improved algorithm to generate high quality progressive animation models (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Biomedical Engineering and Computer Science, ICBECS 2010, April 23, 2010 - April 25, 2010, Wuhan, China 作者: Zhao J.; Zhang S. 收藏 \| 浏览/下载：26/0 \| 提交时间：2013/03/25 In computer graphics investigation has been made in many years in progressive models generation to alleviate the workload of visualization processing. However most of the existing algorithms only focus on static meshes and very little works are to deal with animation models. In this paper we propose an improved method for generating progressive multiresolution animation models. By the method we first use a normal deviation parameter to improve the famous QEM method as our basic edge contraction metric to generate a base hierarchy. The sequence of the simplified models is generated progressively from the first frame to the last one. Based on the edge contraction sequence in the previous frame the contraction order in the current frame is adjusted according to the deformation degree. We demonstrate that our method works efficiently and can generate better approximations with well-preserved features than previous methods. 2010 IEEE.
	A local feature based simplification method for animated mesh sequence (EI CONFERENCE) 会议论文 OAI收割 2010 2nd International Conference on Computer Engineering and Technology, ICCET 2010, April 16, 2010 - April 18, 2010, Chengdu, China 作者: Wang B.; Wang B.; Zhao J.; Zhang S. 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/03/25 Although animated meshes are frequently used in numerous domains only few works have been proposed until now for simplifying such data. In this paper we propose a new method for generating progressive animated models based on local feature analysis and deformation area preservation. We propose the use of solid angle and height value for a non-hyperbolic vertex to define the local feature parameter. This local factor is embedded to the vertex quadric error matrix when calculating the edge collapse cost. In order to preserve the areas with large deformation we add deformation degree weight to the aggregated quadric errors when computing the unified edge contraction sequence. Finally a mesh optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast easy to implement and as a result good quality dynamic approximations with well-preserved fine details can be generated at any given frame. 2010 IEEE.
	医学影像可视化中的模型动态精简学位论文 OAI收割工学硕士, 中国科学院自动化研究所: 中国科学院自动化研究所, 2001 杨骅收藏 \| 浏览/下载：101/0 \| 提交时间：2015/09/02 医学图像处理医学图像可视化图像分割细节层次模型网络模型简化渐进网格三维交互显示虚拟内窥镜 Medical Image Processing Medical Visulization Image Segmentation Level of Detail Mesh Simplification Progressive Meshes Three-Di
	PACS系统与虚拟内窥镜核心算法研究学位论文 OAI收割工学硕士, 中国科学院自动化研究所: 中国科学院自动化研究所, 2000 作者: 曹勇收藏 \| 浏览/下载：47/0 \| 提交时间：2015/09/02 医学图像Medical Imaging PACS 虚拟内窥镜Virtua Endoscopy 渐进网格Progressive Meshes Medical Imaging PACS Virtual Endoscopy Progressive Meshes