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Animatable clothing transfer, aiming at dressing and animating garments across characters, is a challenging problem. Most human avatar works entangle the representations of the human body and clothing together, which leads to difficulties…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Siyou Lin , Zhe Li , Zhaoqi Su , Zerong Zheng , Hongwen Zhang , Yebin Liu

Geometric algebra is an optimal frame work for calculating with vectors. The geometric algebra of a space includes elements that represent all the its subspaces (lines, planes, volumes, ...). Conformal geometric algebra expands this…

Computer Vision and Pattern Recognition · Computer Science 2013-06-07 Eckhard Hitzer

Purpose: This study proposes a novel anatomically-driven dynamic modeling framework for coronary arteries using skeletal skinning weights computation, aiming to achieve precise control over vessel deformation while maintaining real-time…

Graphics · Computer Science 2025-03-05 Shuo Wang , Tong Ren , Nan Cheng , Rong Wang , Li Zhang

In this paper, we propose a novel framework named DRL-CPG to learn disentangled latent representation for controllable person image generation, which can produce realistic person images with desired poses and human attributes (e.g., pose,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Wenju Xu , Chengjiang Long , Yongwei Nie , Guanghui Wang

Interventional C-arm systems allow flexible 2-D imaging of a 3-D scene while being capable of cone beam computed tomography. Due to the flexible structure of the C-arm, the rotation speed is limited, increasing the acquisition time compared…

Medical Physics · Physics 2018-07-25 Alexander Preuhs , Michael Manhart , Andreas Maier

This paper addresses the limitations of neural rendering-based multi-view surface reconstruction methods, which require an additional mesh extraction step that is inconvenient and would produce poor-quality surfaces with mesh aliasing,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Qitong Zhang , Jieqing Feng

Sparse volumetric reconstruction and rendering via 3D Gaussian splatting have recently enabled animatable 3D head avatars that are rendered under arbitrary viewpoints with impressive photorealism. Today, such photoreal avatars are seen as a…

Computer Vision and Pattern Recognition · Computer Science 2025-05-12 Gengyan Li , Paulo Gotardo , Timo Bolkart , Stephan Garbin , Kripasindhu Sarkar , Abhimitra Meka , Alexandros Lattas , Thabo Beeler

Radiofrequency catheter ablation (RFCA) is an effective treatment for cardiac arrhythmias. Although generally safe, it is not completely exempt from the risk of complications. The great flexibility of computational models can be a major…

Numerical Analysis · Mathematics 2019-10-25 Argyrios Petras , Massimiliano Leoni , Jose M. Guerra , Johan Jansson , Luca Gerardo-Giorda

We present a framework that pioneers the prediction of photochemical conversion in complex three-dimensionally printed objects, introducing a challenging new computer vision task: predicting dense, non-visual volumetric physical properties…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Maryam Eftekharifar , Churun Zhang , Jialiang Wei , Xudong Cao , Hossein Heidari

There is often variation in the shape and size of input data used for deep learning. In many cases, such data can be represented using tensors with non-uniform shapes, or ragged tensors. Due to limited and non-portable support for efficient…

Machine Learning · Computer Science 2022-03-23 Pratik Fegade , Tianqi Chen , Phillip B. Gibbons , Todd C. Mowry

We present a new certified and complete algorithm to compute arrangements of real planar algebraic curves. Our algorithm provides a geometric-topological analysis of the decomposition of the plane induced by a finite number of algebraic…

Symbolic Computation · Computer Science 2011-03-25 Eric Berberich , Pavel Emeliyanenko , Alexander Kobel , Michael Sagraloff

The Spherical Geometry Algorithm (SGA) demonstrates superior capability in achieving efficient and precise spaceborne SAR image formation processing, even under challenging imaging conditions including non-linear radar trajectories and…

Signal Processing · Electrical Eng. & Systems 2025-06-11 Xinhua Mao , Manyi Tao , Jixia Fan

Reconstructing 3D clothed human avatars from single images is a challenging task, especially when encountering complex poses and loose clothing. Current methods exhibit limitations in performance, largely attributable to their dependence on…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Zechuan Zhang , Li Sun , Zongxin Yang , Ling Chen , Yi Yang

We present a deformable generator model to disentangle the appearance and geometric information for both image and video data in a purely unsupervised manner. The appearance generator network models the information related to appearance,…

Machine Learning · Computer Science 2023-10-09 Xianglei Xing , Ruiqi Gao , Tian Han , Song-Chun Zhu , Ying Nian Wu

We present Neural Generalized Implicit Functions(Neural-GIF), to animate people in clothing as a function of the body pose. Given a sequence of scans of a subject in various poses, we learn to animate the character for new poses. Existing…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Garvita Tiwari , Nikolaos Sarafianos , Tony Tung , Gerard Pons-Moll

A facial morph is an image strategically created by combining two face images pertaining to two distinct identities. The goal is to create a face image that can be matched to two different identities by a face matcher. Face demorphing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Nitish Shukla , Arun Ross

We propose GGAvatar, a novel 3D avatar representation designed to robustly model dynamic head avatars with complex identities and deformations. GGAvatar employs a coarse-to-fine structure, featuring two core modules: Neutral Gaussian…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Xinyang Li , Jiaxin Wang , Yixin Xuan , Gongxin Yao , Yu Pan

In adaptive radiotherapy, deformable image registration is often conducted between the planning CT and treatment CT (or cone beam CT) to generate a deformation vector field (DVF) for dose accumulation and contour propagation. The auto…

Medical Physics · Physics 2015-06-12 Xuejun Gu , Bin Dong , Jing Wang , John Yordy , Loren Mell , Xun Jia , Steve B. Jiang

Cartograms are a technique for visually representing geographically distributed statistical data, where values of a numerical attribute are mapped to the size of geographic regions. Contiguous cartograms preserve the adjacencies of the…

Computational Geometry · Computer Science 2026-04-16 Vladimir Molchanov , Hennes Rave , Lars Linsen

In robotic surgery, pattern cutting through a deformable material is a challenging research field. The cutting procedure requires a robot to concurrently manipulate a scissor and a gripper to cut through a predefined contour trajectory on…

Robotics · Computer Science 2019-02-15 Ngoc Duy Nguyen , Thanh Nguyen , Saeid Nahavandi , Asim Bhatti , Glenn Guest