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相关论文: Neural Cages for Detail-Preserving 3D Deformations

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We develop a neural parametric model for 3D leaves for plant modeling and reconstruction that are essential for agriculture and computer graphics. While neural parametric models are actively studied for humans and animals, plant leaves…

计算机视觉与模式识别 · 计算机科学 2025-08-08 Yang Yang , Dongni Mao , Hiroaki Santo , Yasuyuki Matsushita , Fumio Okura

In the area of 3D shape analysis, the geometric properties of a shape have long been studied. Instead of directly extracting representative features using expert-designed descriptors or end-to-end deep neural networks, this paper is…

计算机视觉与模式识别 · 计算机科学 2021-12-22 Zongji Wang , Yunfei Liu , Feng Lu

We introduce the first completely unsupervised correspondence learning approach for deformable 3D shapes. Key to our model is the understanding that natural deformations (such as changes in pose) approximately preserve the metric structure…

计算机视觉与模式识别 · 计算机科学 2018-12-07 Oshri Halimi , Or Litany , Emanuele Rodolà , Alex Bronstein , Ron Kimmel

The majority of descriptor-based methods for geometric processing of non-rigid shape rely on hand-crafted descriptors. Recently, learning-based techniques have been shown effective, achieving state-of-the-art results in a variety of tasks.…

计算机视觉与模式识别 · 计算机科学 2020-02-10 Zhangsihao Yang , Or Litany , Tolga Birdal , Srinath Sridhar , Leonidas Guibas

Deep learning approaches to 3D shape segmentation are typically formulated as a multi-class labeling problem. Existing models are trained for a fixed set of labels, which greatly limits their flexibility and adaptivity. We opt for top-down…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Fenggen Yu , Kun Liu , Yan Zhang , Chenyang Zhu , Kai Xu

When solving a segmentation task, shaped-base methods can be beneficial compared to pixelwise classification due to geometric understanding of the target object as shape, preventing the generation of anatomical implausible predictions in…

计算机视觉与模式识别 · 计算机科学 2024-07-30 Ron Keuth , Mattias Heinrich

Shape matching has been a long-studied problem for the computer graphics and vision community. The objective is to predict a dense correspondence between meshes that have a certain degree of deformation. Existing methods either consider the…

计算机视觉与模式识别 · 计算机科学 2022-02-04 Mahdi Saleh , Shun-Cheng Wu , Luca Cosmo , Nassir Navab , Benjamin Busam , Federico Tombari

This paper presents a new approach for 3D shape generation, enabling direct generative modeling on a continuous implicit representation in wavelet domain. Specifically, we propose a compact wavelet representation with a pair of coarse and…

计算机视觉与模式识别 · 计算机科学 2022-09-20 Ka-Hei Hui , Ruihui Li , Jingyu Hu , Chi-Wing Fu

We introduce a novel data-driven approach aimed at designing high-quality shape deformations based on a coarse localized input signal. Unlike previous data-driven methods that require a global shape encoding, we observe that…

图形学 · 计算机科学 2024-10-14 Ramana Sundararaman , Nicolas Donati , Simone Melzi , Etienne Corman , Maks Ovsjanikov

We propose to synthesize feasible caging grasps for a target object through computing Caging Loops, a closed curve defined in the shape embedding space of the object. Different from the traditional methods, our approach decouples caging…

机器人学 · 计算机科学 2018-08-01 Jian Liu , Shiqing Xin , Zengfu Gao , Kai Xu , Changhe Tu , Baoquan Chen

Non-rigid shape deformations pose significant challenges, and most existing methods struggle to handle partial deformations effectively. We propose to learn deformations at the point level, which allows for localized control of 3D surface…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Thomas Besnier , Emery Pierson , Sylvain Arguillere , Maks Ovsjanikov , Mohamed Daoudi

This paper presents a learning-based approach for accurately estimating the 3D shape of flexible continuum robots subjected to external loads. The proposed method introduces a spatiotemporal neural network architecture that fuses…

机器人学 · 计算机科学 2025-10-28 Enyi Wang , Zhen Deng , Chuanchuan Pan , Bingwei He , Jianwei Zhang

In recent years, implicit surface representations through neural networks that encode the signed distance have gained popularity and have achieved state-of-the-art results in various tasks (e.g. shape representation, shape reconstruction,…

图形学 · 计算机科学 2023-01-30 Petros Tzathas , Petros Maragos , Anastasios Roussos

We study the problem of shape generation in 3D mesh representation from a small number of color images with or without camera poses. While many previous works learn to hallucinate the shape directly from priors, we adopt to further improve…

计算机视觉与模式识别 · 计算机科学 2022-04-22 Chao Wen , Yinda Zhang , Chenjie Cao , Zhuwen Li , Xiangyang Xue , Yanwei Fu

Example-based mesh deformation methods are powerful tools for realistic shape editing. However, existing techniques typically combine all the example deformation modes, which can lead to overfitting, i.e. using a overly complicated model to…

图形学 · 计算机科学 2017-09-06 Lin Gao , Yu-Kun Lai , Jie Yang , Ling-Xiao Zhang , Leif Kobbelt , Shihong Xia

We propose a method to create plausible geometric and texture style variations of 3D objects in the quest to democratize 3D content creation. Given a pair of textured source and target objects, our method predicts a part-aware affine…

计算机视觉与模式识别 · 计算机科学 2021-08-31 Kangxue Yin , Jun Gao , Maria Shugrina , Sameh Khamis , Sanja Fidler

Effective representation of 2D images is fundamental in digital image processing, where traditional methods like raster and vector graphics struggle with sharpness and textural complexity respectively. Current neural fields offer…

计算机视觉与模式识别 · 计算机科学 2024-08-05 Chenxi Liu , Siqi Wang , Matthew Fisher , Deepali Aneja , Alec Jacobson

We propose a learning based method for generating new animations of a cartoon character given a few example images. Our method is designed to learn from a traditionally animated sequence, where each frame is drawn by an artist, and thus the…

计算机视觉与模式识别 · 计算机科学 2020-10-14 Omid Poursaeed , Vladimir G. Kim , Eli Shechtman , Jun Saito , Serge Belongie

Implicit surface representations, such as signed-distance functions, combined with deep learning have led to impressive models which can represent detailed shapes of objects with arbitrary topology. Since a continuous function is learned,…

计算机视觉与模式识别 · 计算机科学 2021-02-08 Edgar Tretschk , Ayush Tewari , Vladislav Golyanik , Michael Zollhöfer , Carsten Stoll , Christian Theobalt

3D pose transfer is one of the most challenging 3D generation tasks. It aims to transfer the pose of a source mesh to a target mesh and keep the identity (e.g., body shape) of the target mesh. Some previous works require key point…

计算机视觉与模式识别 · 计算机科学 2021-12-28 Chaoyue Song , Jiacheng Wei , Ruibo Li , Fayao Liu , Guosheng Lin