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Most existing human rendering methods require every part of the human to be fully visible throughout the input video. However, this assumption does not hold in real-life settings where obstructions are common, resulting in only partial…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Adam Sun , Tiange Xiang , Scott Delp , Li Fei-Fei , Ehsan Adeli

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…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Ka-Hei Hui , Ruihui Li , Jingyu Hu , Chi-Wing Fu

Diffusion models have emerged as a powerful generative method, capable of producing stunning photo-realistic images from natural language descriptions. However, these models lack explicit control over the 3D structure in the generated…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Wufei Ma , Qihao Liu , Jiahao Wang , Angtian Wang , Xiaoding Yuan , Yi Zhang , Zihao Xiao , Guofeng Zhang , Beijia Lu , Ruxiao Duan , Yongrui Qi , Adam Kortylewski , Yaoyao Liu , Alan Yuille

We propose a novel point cloud U-Net diffusion architecture for 3D generative modeling capable of generating high-quality and diverse 3D shapes while maintaining fast generation times. Our network employs a dual-branch architecture,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Ioannis Romanelis , Vlassios Fotis , Athanasios Kalogeras , Christos Alexakos , Konstantinos Moustakas , Adrian Munteanu

Diffusion models have achieved great success in synthesizing high-quality images. However, generating high-resolution images with diffusion models is still challenging due to the enormous computational costs, resulting in a prohibitive…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Muyang Li , Tianle Cai , Jiaxin Cao , Qinsheng Zhang , Han Cai , Junjie Bai , Yangqing Jia , Ming-Yu Liu , Kai Li , Song Han

Point clouds are crucial for capturing three-dimensional data but often suffer from incompleteness due to limitations such as resolution and occlusion. Traditional methods typically rely on point-based approaches within discriminative…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Guoqing Zhang , Jian Liu

This paper presents a novel method for building scalable 3D generative models utilizing pre-trained video diffusion models. The primary obstacle in developing foundation 3D generative models is the limited availability of 3D data. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Junlin Han , Filippos Kokkinos , Philip Torr

Diffusion Transformers have recently shown remarkable effectiveness in generating high-quality 3D point clouds. However, training voxel-based diffusion models for high-resolution 3D voxels remains prohibitively expensive due to the cubic…

Computer Vision and Pattern Recognition · Computer Science 2023-12-13 Shentong Mo , Enze Xie , Yue Wu , Junsong Chen , Matthias Nießner , Zhenguo Li

We consider the task of generating realistic 3D shapes, which is useful for a variety of applications such as automatic scene generation and physical simulation. Compared to other 3D representations like voxels and point clouds, meshes are…

Graphics · Computer Science 2023-04-18 Zhen Liu , Yao Feng , Michael J. Black , Derek Nowrouzezahrai , Liam Paull , Weiyang Liu

We present Surf-D, a novel method for generating high-quality 3D shapes as Surfaces with arbitrary topologies using Diffusion models. Previous methods explored shape generation with different representations and they suffer from limited…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Zhengming Yu , Zhiyang Dou , Xiaoxiao Long , Cheng Lin , Zekun Li , Yuan Liu , Norman Müller , Taku Komura , Marc Habermann , Christian Theobalt , Xin Li , Wenping Wang

We propose a diffusion model designed to generate point-based shape representations with correspondences. Traditional statistical shape models have considered point correspondences extensively, but current deep learning methods do not take…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Shen Zhu , Yinzhu Jin , Ifrah Zawar , P. Thomas Fletcher

We present a cascaded diffusion model based on a part-level implicit 3D representation. Our model achieves state-of-the-art generation quality and also enables part-level shape editing and manipulation without any additional training in…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Juil Koo , Seungwoo Yoo , Minh Hieu Nguyen , Minhyuk Sung

Diffusion models have achieved remarkable success in image and video generation. In this work, we demonstrate that diffusion models can also \textit{generate high-performing neural network parameters}. Our approach is simple, utilizing an…

Machine Learning · Computer Science 2025-01-03 Kai Wang , Dongwen Tang , Boya Zeng , Yida Yin , Zhaopan Xu , Yukun Zhou , Zelin Zang , Trevor Darrell , Zhuang Liu , Yang You

In the realm of 3D computer vision, parametric models have emerged as a ground-breaking methodology for the creation of realistic and expressive 3D avatars. Traditionally, they rely on Principal Component Analysis (PCA), given its ability…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Rolandos Alexandros Potamias , Michail Tarasiou , Stylianos Ploumpis , Stefanos Zafeiriou

Recent advances in localized implicit functions have enabled neural implicit representation to be scalable to large scenes. However, the regular subdivision of 3D space employed by these approaches fails to take into account the sparsity of…

Graphics · Computer Science 2021-11-02 Jia-Heng Tang , Weikai Chen , Jie Yang , Bo Wang , Songrun Liu , Bo Yang , Lin Gao

In this report, we introduce UltraShape 1.0, a scalable 3D diffusion framework for high-fidelity 3D geometry generation. The proposed approach adopts a two-stage generation pipeline: a coarse global structure is first synthesized and then…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Tanghui Jia , Dongyu Yan , Dehao Hao , Yang Li , Kaiyi Zhang , Xianyi He , Lanjiong Li , Yuhan Wang , Jinnan Chen , Lutao Jiang , Qishen Yin , Long Quan , Ying-Cong Chen , Li Yuan

This paper presents a new approach for 3D shape generation, inversion, and manipulation, through a direct generative modeling on a continuous implicit representation in wavelet domain. Specifically, we propose a compact wavelet…

Computer Vision and Pattern Recognition · Computer Science 2023-02-02 Jingyu Hu , Ka-Hei Hui , Zhengzhe Liu , Ruihui Li , Chi-Wing Fu

Diffusion-based image generators can now produce high-quality and diverse samples, but their success has yet to fully translate to 3D generation: existing diffusion methods can either generate low-resolution but 3D consistent outputs, or…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Animesh Karnewar , Niloy J. Mitra , Andrea Vedaldi , David Novotny

This paper presents PipeFusion, an innovative parallel methodology to tackle the high latency issues associated with generating high-resolution images using diffusion transformers (DiTs) models. PipeFusion partitions images into patches and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Jiarui Fang , Jinzhe Pan , Aoyu Li , Xibo Sun , Jiannan Wang

We introduce a new generative model that combines latent diffusion with persistent homology to create 3D shapes with high diversity, with a special emphasis on their topological characteristics. Our method involves representing 3D shapes as…

Computer Vision and Pattern Recognition · Computer Science 2024-02-01 Jiangbei Hu , Ben Fei , Baixin Xu , Fei Hou , Weidong Yang , Shengfa Wang , Na Lei , Chen Qian , Ying He