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3D content generation remains a fundamental yet challenging task due to the inherent structural complexity of 3D data. While recent octree-based diffusion models offer a promising balance between efficiency and quality through hierarchical…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Xinjie Gao , Bi'an Du , Wei Hu

We introduce TreeMeshGPT, an autoregressive Transformer designed to generate high-quality artistic meshes aligned with input point clouds. Instead of the conventional next-token prediction in autoregressive Transformer, we propose a novel…

Graphics · Computer Science 2025-03-17 Stefan Lionar , Jiabin Liang , Gim Hee Lee

We present a memory-efficient algorithm for significantly enhancing the quality of segmented 3D micro-Computed Tomography (micro-CT) images of rocks using a generative model. The proposed model achieves a 16x increase in resolution and…

Image and Video Processing · Electrical Eng. & Systems 2025-05-27 Evgeny Ugolkov , Xupeng He , Hyung Kwak , Hussein Hoteit

Recent advances in 3D generative models have shown promising results but often fall short in capturing the complexity of architectural geometries and topologies and fine geometric details at high resolutions. To tackle this, we present…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 S. Rasoulzadeh , M. Bank , I. Kovacic , K. Schinegger , S. Rutzinger , M. Wimmer

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…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Yu Wang , Xuelin Qian , Jingyang Huo , Tiejun Huang , Bo Zhao , Yanwei Fu

3D scene understanding for robotic applications exhibits a unique set of requirements including real-time inference, object-centric latent representation learning, accurate 6D pose estimation and 3D reconstruction of objects. Current…

Robotics · Computer Science 2024-02-27 Yizhe Wu , Haitz Sáez de Ocáriz Borde , Jack Collins , Oiwi Parker Jones , Ingmar Posner

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…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Ken Deng , Yuan-Chen Guo , Jingxiang Sun , Zi-Xin Zou , Yangguang Li , Xin Cai , Yan-Pei Cao , Yebin Liu , Ding Liang

Autoregressive (AR) models have achieved remarkable success in natural language and image generation, but their application to 3D shape modeling remains largely unexplored. Unlike diffusion models, AR models enable more efficient and…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Tejaswini Medi , Arianna Rampini , Pradyumna Reddy , Pradeep Kumar Jayaraman , Margret Keuper

Anatomical trees are critical for clinical diagnosis and treatment planning, yet their complex and diverse geometry make accurate representation a significant challenge. Motivated by the latest advances in large language models, we…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Paula Feldman , Martin Sinnona , Claudio Delrieux , Viviana Siless , Emmanuel Iarussi

Occupancy prediction has increasingly garnered attention in recent years for its fine-grained understanding of 3D scenes. Traditional approaches typically rely on dense, regular grid representations, which often leads to excessive…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Yuhang Lu , Xinge Zhu , Tai Wang , Yuexin Ma

Implicit generative models have been widely employed to model 3D data and have recently proven to be successful in encoding and generating high-quality 3D shapes. This work builds upon these models and alleviates current limitations by…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Tejaswini Medi , Jawad Tayyub , Muhammad Sarmad , Frank Lindseth , Margret Keuper

Autoregressive point cloud generation has long lagged behind diffusion-based approaches in quality. The performance gap stems from the fact that autoregressive models impose an artificial ordering on inherently unordered point sets, forcing…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Ziqiao Meng , Qichao Wang , Zhiyang Dou , Zixing Song , Zhipeng Zhou , Irwin King , Peilin Zhao

Autoregressive point cloud generation has long lagged behind diffusion-based approaches in quality. The performance gap stems from the fact that autoregressive models impose an artificial ordering on inherently unordered point sets, forcing…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Ziqiao Meng , Qichao Wang , Zhiyang Dou , Zixing Song , Zhipeng Zhou , Irwin King , Peilin Zhao

Generating 3D point clouds is challenging yet highly desired. This work presents a novel autoregressive model, PointGrow, which can generate diverse and realistic point cloud samples from scratch or conditioned on semantic contexts. This…

Computer Vision and Pattern Recognition · Computer Science 2019-11-07 Yongbin Sun , Yue Wang , Ziwei Liu , Joshua E. Siegel , Sanjay E. Sarma

We introduce DreamCraft3D++, an extension of DreamCraft3D that enables efficient high-quality generation of complex 3D assets. DreamCraft3D++ inherits the multi-stage generation process of DreamCraft3D, but replaces the time-consuming…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Jingxiang Sun , Cheng Peng , Ruizhi Shao , Yuan-Chen Guo , Xiaochen Zhao , Yangguang Li , Yanpei Cao , Bo Zhang , Yebin Liu

Autoregressive models for 3D mesh generation suffer from a fundamental limitation: they flatten meshes into long vertex-coordinate sequences. This results in prohibitive computational costs, hindering the efficient synthesis of…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Hanxiao Wang , Yuan-Chen Guo , Ying-Tian Liu , Zi-Xin Zou , Biao Zhang , Weize Quan , Ding Liang , Yan-Pei Cao , Dong-Ming Yan

We introduce ProcGen3D, a new approach for 3D content creation by generating procedural graph abstractions of 3D objects, which can then be decoded into rich, complex 3D assets. Inspired by the prevalent use of procedural generators in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Xinyi Zhang , Daoyi Gao , Naiqi Li , Angela Dai

We introduce a deep recursive octree network for the compression of 3D voxel data. Our network compresses a voxel grid of any size down to a very small latent space in an autoencoder-like network. We show results for compressing 32, 64 and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Juncheng Liu , Steven Mills , Brendan McCane

Object-Centric Motion Generation (OCMG) is instrumental in advancing automated manufacturing processes, particularly in domains requiring high-precision expert robotic motions, such as spray painting and welding. To realize effective…

Robotics · Computer Science 2025-11-04 Paolo Rabino , Gabriele Tiboni , Tatiana Tommasi

Large language models (LLMs) based on the generative pre-training transformer (GPT) have demonstrated remarkable effectiveness across a diverse range of downstream tasks. Inspired by the advancements of the GPT, we present PointGPT, a novel…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Guangyan Chen , Meiling Wang , Yi Yang , Kai Yu , Li Yuan , Yufeng Yue