WebXianfeng Gu. Stony Brook University, Stony Brook, USA ... We present a method for registration and visualization of corresponding supine and prone virtual colonoscopy scans based on eigenfunction analysis and fold modeling. In virtual colonoscopy, CT scans are acquired with the patient in two positions, and ... 2 Citation; Metrics. WebWe developed a general method for global conformal parameterizations based on the structure of the cohomology group of holomorphic one-forms for surfaces with or without boundaries (Gu and Yau, 2002), (Gu and Yau, 2003). For genus zero surfaces, our algorithm can find a unique mapping between any tw …
Colon cancer screening: Weighing the options - Mayo Clinic
In mathematics, conformal means "angle preserving". Conformal structure is a specail atlas of the surface, such that angles among tangentvectors can be coherently defined on different local coordinate systems. Furthermore, concepts in complex anylasis can be defined on the surface via conformal structure. … See more A surface with a conformal structure is called a Riemann surface. All metric surfaces are Riemann surfaces. The image illustrates the … See more Surface uniformization means that all metric surfaces can be conformally mapped to one of the three canonical domains, the sphere, the plane and the hyperbolic space. The figures show the uniformization for … See more WebJan 30, 2024 · Polycube construction and deformation are essential problems in computer graphics. In this paper, we present a robust, simple, efficient, and automatic algorithm to deform the meshes of arbitrary shapes into polycube form. We derive a clear relationship between a mesh and its corresponding polycube shape. Our algorithm is edge … popcorn store long grove il
Xianfeng David Gu - University at Buffalo
WebAbstract. We present a method for registration and visualization of corresponding supine and prone virtual colonoscopy scans based on eigenfunction analysis and fold … WebXianfeng David Gu currently works at the Department of Computer Science, Applied Mathematics Department, Stony Brook University. He also is affiliated with the Center of … WebClassification of lung nodules in CT images based on Wasserstein distance in differential geometry Min Zhang1, Chengfen Wen2, Qianli Ma3;4, Huai Chen5, Deruo Liu4, Jie He3, Xianfeng Gu2, and ... sharepoint online search contains