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This paper introduces a novel framework called DTNet for 3D mesh reconstruction and generation via Disentangled Topology. Beyond previous works, we learn a topology-aware neural template specific to each input then deform the template to…

计算机视觉与模式识别 · 计算机科学 2022-06-13 Ka-Hei Hui , Ruihui Li , Jingyu Hu , Chi-Wing Fu

There have been recent efforts to learn more meaningful representations via fixed length codewords from mesh data, since a mesh serves as a complete model of underlying 3D shape compared to a point cloud. However, the mesh connectivity…

计算机视觉与模式识别 · 计算机科学 2023-08-30 Eric Lei , Muhammad Asad Lodhi , Jiahao Pang , Junghyun Ahn , Dong Tian

Parametric 3D models have enabled a wide variety of tasks in computer graphics and vision, such as modeling human bodies, faces, and hands. However, the construction of these parametric models is often tedious, as it requires heavy manual…

计算机视觉与模式识别 · 计算机科学 2021-08-06 Pablo Palafox , Aljaž Božič , Justus Thies , Matthias Nießner , Angela Dai

Inverse rendering in a 3D format denoted to recovering the 3D properties of a scene given 2D input image(s) and is typically done using 3D Morphable Model (3DMM) based methods from single view images. These models formulate each face as a…

计算机视觉与模式识别 · 计算机科学 2017-09-01 Shima Kamyab , Ali Ghodsi , S. Zohreh Azimifar

We introduce a novel, data-driven approach for reconstructing temporally coherent 3D motion from unstructured and potentially partial observations of non-rigidly deforming shapes. Our goal is to achieve high-fidelity motion reconstructions…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Aymen Merrouche , Stefanie Wuhrer , Edmond Boyer

Mesh generation is a crucial step in numerical simulations, significantly impacting simulation accuracy and efficiency. However, generating meshes remains time-consuming and requires expensive computational resources. In this paper, we…

图形学 · 计算机科学 2024-07-03 Jiaming Peng , Xinhai Chen , Jie Liu

Probabilistic denoising diffusion models (DDMs) have set a new standard for 2D image generation. Extending DDMs for 3D content creation is an active field of research. Here, we propose TetraDiffusion, a diffusion model that operates on a…

计算机视觉与模式识别 · 计算机科学 2024-08-12 Nikolai Kalischek , Torben Peters , Jan D. Wegner , Konrad Schindler

We propose a new framework for creating and easily manipulating 3D models of arbitrary objects using casually captured videos. Our core ingredient is a novel hierarchy deformation model, which captures motions of objects with a…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Subin Jeon , In Cho , Minsu Kim , Woong Oh Cho , Seon Joo Kim

Learning 3D parametric shape models of objects has gained popularity in vision and graphics and has showed broad utility in 3D reconstruction, generation, understanding, and simulation. While powerful models exist for humans and animals,…

Parametric models of humans, faces, hands and animals have been widely used for a range of tasks such as image-based reconstruction, shape correspondence estimation, and animation. Their key strength is the ability to factor surface…

计算机视觉与模式识别 · 计算机科学 2020-07-23 Keyang Zhou , Bharat Lal Bhatnagar , Gerard Pons-Moll

3D human motion capture from monocular RGB images respecting interactions of a subject with complex and possibly deformable environments is a very challenging, ill-posed and under-explored problem. Existing methods address it only weakly…

计算机视觉与模式识别 · 计算机科学 2022-08-18 Zhi Li , Soshi Shimada , Bernt Schiele , Christian Theobalt , Vladislav Golyanik

We introduce SDM-NET, a deep generative neural network which produces structured deformable meshes. Specifically, the network is trained to generate a spatial arrangement of closed, deformable mesh parts, which respect the global part…

图形学 · 计算机科学 2019-09-04 Lin Gao , Jie Yang , Tong Wu , Yu-Jie Yuan , Hongbo Fu , Yu-Kun Lai , Hao Zhang

Parametric 3D models have formed a fundamental role in modeling deformable objects, such as human bodies, faces, and hands; however, the construction of such parametric models requires significant manual intervention and domain expertise.…

计算机视觉与模式识别 · 计算机科学 2022-01-21 Pablo Palafox , Nikolaos Sarafianos , Tony Tung , Angela Dai

3D Morphable Models (3DMMs) are statistical models that represent facial texture and shape variations using a set of linear bases and more particular Principal Component Analysis (PCA). 3DMMs were used as statistical priors for…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Yuxiang Zhou , Jiankang Deng , Irene Kotsia , Stefanos Zafeiriou

The availability of affordable and portable depth sensors has made scanning objects and people simpler than ever. However, dealing with occlusions and missing parts is still a significant challenge. The problem of reconstructing a (possibly…

计算机视觉与模式识别 · 计算机科学 2018-04-05 Or Litany , Alex Bronstein , Michael Bronstein , Ameesh Makadia

The Gaussian diffusion model, initially designed for image generation, has recently been adapted for 3D point cloud generation. However, these adaptations have not fully considered the intrinsic geometric characteristics of 3D shapes,…

图形学 · 计算机科学 2024-08-01 Dengsheng Chen , Jie Hu , Xiaoming Wei , Enhua Wu

Human vision demonstrates higher robustness than current AI algorithms under out-of-distribution scenarios. It has been conjectured such robustness benefits from performing analysis-by-synthesis. Our paper formulates triple vision tasks in…

计算机视觉与模式识别 · 计算机科学 2023-06-02 Angtian Wang , Wufei Ma , Alan Yuille , Adam Kortylewski

In modern computer vision, images are typically represented as a fixed uniform grid with some stride and processed via a deep convolutional neural network. We argue that deforming the grid to better align with the high-frequency image…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Jun Gao , Zian Wang , Jinchen Xuan , Sanja Fidler

Learning robust 3D shape segmentation functions with deep neural networks has emerged as a powerful paradigm, offering promising performance in producing a consistent part segmentation of each 3D shape. Generalizing across 3D shape…

计算机视觉与模式识别 · 计算机科学 2024-02-07 Yu Hao , Hao Huang , Shuaihang Yuan , Yi Fang

Recovering 3D object pose and shape from a single image is a challenging and ill-posed problem. This is due to strong (self-)occlusions, depth ambiguities, the vast intra- and inter-class shape variance, and the lack of 3D ground truth for…

计算机视觉与模式识别 · 计算机科学 2025-08-01 Dimitrije Antić , Georgios Paschalidis , Shashank Tripathi , Theo Gevers , Sai Kumar Dwivedi , Dimitrios Tzionas