中文
相关论文

相关论文: 3D Shape Synthesis for Conceptual Design and Optim…

200 篇论文

In this work we introduce Lifting Autoencoders, a generative 3D surface-based model of object categories. We bring together ideas from non-rigid structure from motion, image formation, and morphable models to learn a controllable, geometric…

计算机视觉与模式识别 · 计算机科学 2019-04-29 Mihir Sahasrabudhe , Zhixin Shu , Edward Bartrum , Riza Alp Guler , Dimitris Samaras , Iasonas Kokkinos

We introduce 3DShape2VecSet, a novel shape representation for neural fields designed for generative diffusion models. Our shape representation can encode 3D shapes given as surface models or point clouds, and represents them as neural…

计算机视觉与模式识别 · 计算机科学 2023-05-03 Biao Zhang , Jiapeng Tang , Matthias Niessner , Peter Wonka

We present a significant breakthrough in 3D shape generation by scaling it to unprecedented dimensions. Through the adaptation of the Auto-Regressive model and the utilization of large language models, we have developed a remarkable model…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Yu Wang , Xuelin Qian , Jingyang Huo , Tiejun Huang , Bo Zhao , Yanwei Fu

Recent work has shown the ability to learn generative models for 3D shapes from only unstructured 2D images. However, training such models requires differentiating through the rasterization step of the rendering process, therefore past work…

计算机视觉与模式识别 · 计算机科学 2020-03-02 Sebastian Lunz , Yingzhen Li , Andrew Fitzgibbon , Nate Kushman

Synthetic images rendered by graphics engines are a promising source for training deep networks. However, it is challenging to ensure that they can help train a network to perform well on real images, because a graphics-based generation…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Dawei Yang , Jia Deng

We propose the Variational Shape Learner (VSL), a generative model that learns the underlying structure of voxelized 3D shapes in an unsupervised fashion. Through the use of skip-connections, our model can successfully learn and infer a…

计算机视觉与模式识别 · 计算机科学 2018-08-07 Shikun Liu , C. Lee Giles , Alexander G. Ororbia

Deep generative models of 3D shapes have received a great deal of research interest. Yet, almost all of them generate discrete shape representations, such as voxels, point clouds, and polygon meshes. We present the first 3D generative model…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Rundi Wu , Chang Xiao , Changxi Zheng

We propose a deep learning method to model and generate synthetic aortic shapes based on representing shapes as the zero-level set of a neural signed distance field, conditioned by a family of trainable embedding vectors with encode the…

计算机视觉与模式识别 · 计算机科学 2024-09-25 Andrei Gasparovici , Alex Serban

The advancement of generative radiance fields has pushed the boundary of 3D-aware image synthesis. Motivated by the observation that a 3D object should look realistic from multiple viewpoints, these methods introduce a multi-view constraint…

计算机视觉与模式识别 · 计算机科学 2021-12-10 Xingang Pan , Xudong Xu , Chen Change Loy , Christian Theobalt , Bo Dai

Recent CLIP-guided 3D optimization methods, such as DreamFields and PureCLIPNeRF, have achieved impressive results in zero-shot text-to-3D synthesis. However, due to scratch training and random initialization without prior knowledge, these…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Jiale Xu , Xintao Wang , Weihao Cheng , Yan-Pei Cao , Ying Shan , Xiaohu Qie , Shenghua Gao

This paper introduces a generative model for 3D surfaces based on a representation of shapes with mean curvature and metric, which are invariant under rigid transformation. Hence, compared with existing 3D machine learning frameworks, our…

图形学 · 计算机科学 2020-09-08 Zi Ye , Nobuyuki Umetani , Takeo Igarashi , Tim Hoffmann

Modern 3D generation methods can rapidly create shapes from sparse or single views, but their outputs often lack geometric detail due to computational constraints. We present DetailGen3D, a generative approach specifically designed to…

计算机视觉与模式识别 · 计算机科学 2025-04-02 Ken Deng , Yuan-Chen Guo , Jingxiang Sun , Zi-Xin Zou , Yangguang Li , Xin Cai , Yan-Pei Cao , Yebin Liu , Ding Liang

In recent years, 3D models have been utilized in many applications, such as auto-driver, 3D reconstruction, VR, and AR. However, the scarcity of 3D model data does not meet its practical demands. Thus, generating high-quality 3D models…

计算机视觉与模式识别 · 计算机科学 2023-05-26 Weizhi Nie , Ruidong Chen , Weijie Wang , Bruno Lepri , Nicu Sebe

3D generation has witnessed significant advancements, yet efficiently producing high-quality 3D assets from a single image remains challenging. In this paper, we present a triplane autoencoder, which encodes 3D models into a compact…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Bowen Zhang , Tianyu Yang , Yu Li , Lei Zhang , Xi Zhao

We propose a novel machine learning strategy for studying neuroanatomical shape variation. Our model works with volumetric binary segmentation images, and requires no pre-processing such as the extraction of surface points or a mesh. The…

计算机视觉与模式识别 · 计算机科学 2024-10-30 Evan M. Yu , Mert R. Sabuncu

We propose a method for constructing generative models of 3D objects from a single 3D mesh and improving them through unsupervised low-shot learning from 2D images. Our method produces a 3D morphable model that represents shape and albedo…

计算机视觉与模式识别 · 计算机科学 2022-03-08 Skylar Sutherland , Bernhard Egger , Joshua Tenenbaum

The creation of manufacturable and editable 3D shapes through Computer-Aided Design (CAD) remains a highly manual and time-consuming task, hampered by the complex topology of boundary representations of 3D solids and unintuitive design…

计算机视觉与模式识别 · 计算机科学 2025-04-10 Md Ferdous Alam , Faez Ahmed

The demand for efficient 3D model generation techniques has grown exponentially, as manual creation of 3D models is time-consuming and requires specialized expertise. While generative models have shown potential in creating 3D textured…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Fanghua Yu , Xintao Wang , Zheyuan Li , Yan-Pei Cao , Ying Shan , Chao Dong

Significant progress has recently been made in creative applications of large pre-trained models for downstream tasks in 3D vision, such as text-to-shape generation. This motivates our investigation of how these pre-trained models can be…

计算机视觉与模式识别 · 计算机科学 2023-07-11 Aditya Sanghi , Pradeep Kumar Jayaraman , Arianna Rampini , Joseph Lambourne , Hooman Shayani , Evan Atherton , Saeid Asgari Taghanaki

Many robotic tasks involving some form of 3D visual perception greatly benefit from a complete knowledge of the working environment. However, robots often have to tackle unstructured environments and their onboard visual sensors can only…

计算机视觉与模式识别 · 计算机科学 2022-10-24 Andrea Rosasco , Stefano Berti , Fabrizio Bottarel , Michele Colledanchise , Lorenzo Natale