no code implementations • 3 Jun 2024 • Yun-Chun Chen, Selena Ling, Zhiqin Chen, Vladimir G. Kim, Matheus Gadelha, Alec Jacobson
First, we generate a single-view RGB image conditioned on the input coarse geometry and the input text prompt.
no code implementations • 20 Apr 2024 • Sanghyun Son, Matheus Gadelha, Yang Zhou, Zexiang Xu, Ming C. Lin, Yi Zhou
We present a differentiable representation, DMesh, for general 3D triangular meshes.
no code implementations • 26 Feb 2024 • Dmitry Petrov, Pradyumn Goyal, Vikas Thamizharasan, Vladimir G. Kim, Matheus Gadelha, Melinos Averkiou, Siddhartha Chaudhuri, Evangelos Kalogerakis
We introduce GEM3D -- a new deep, topology-aware generative model of 3D shapes.
1 code implementation • CVPR 2024 • Ta-Ying Cheng, Matheus Gadelha, Thibault Groueix, Matthew Fisher, Radomir Mech, Andrew Markham, Niki Trigoni
We do this by engineering special sets of input tokens that can be transformed in a continuous manner -- we call them Continuous 3D Words.
no code implementations • CVPR 2024 • Karran Pandey, Paul Guerrero, Matheus Gadelha, Yannick Hold-Geoffroy, Karan Singh, Niloy J. Mitra
Diffusion handles is a novel approach to enable 3D object edits on diffusion images requiring only existing pre-trained diffusion models depth estimation without any fine-tuning or 3D object retrieval.
no code implementations • CVPR 2024 • Shengqu Cai, Duygu Ceylan, Matheus Gadelha, Chun-Hao Paul Huang, Tuanfeng Yang Wang, Gordon Wetzstein
Traditional 3D content creation tools empower users to bring their imagination to life by giving them direct control over a scene's geometry, appearance, motion, and camera path.
no code implementations • 2 Dec 2023 • Karran Pandey, Paul Guerrero, Matheus Gadelha, Yannick Hold-Geoffroy, Karan Singh, Niloy Mitra
Our key insight is to lift diffusion activations for an object to 3D using a proxy depth, 3D-transform the depth and associated activations, and project them back to image space.
no code implementations • ICCV 2023 • Ta-Ying Cheng, Matheus Gadelha, Soren Pirk, Thibault Groueix, Radomir Mech, Andrew Markham, Niki Trigoni
We present 3DMiner -- a pipeline for mining 3D shapes from challenging large-scale unannotated image datasets.
no code implementations • 13 Dec 2022 • Zezhou Cheng, Matheus Gadelha, Subhransu Maji
We propose a technique for learning single-view 3D object pose estimation models by utilizing a new source of data -- in-the-wild videos where objects turn.
no code implementations • 1 Jul 2022 • Marissa Ramirez de Chanlatte, Matheus Gadelha, Thibault Groueix, Radomir Mech
We present a fine-tuning method to improve the appearance of 3D geometries reconstructed from single images.
1 code implementation • CVPR 2022 • Yiming Xie, Matheus Gadelha, Fengting Yang, Xiaowei Zhou, Huaizu Jiang
We present PlanarRecon -- a novel framework for globally coherent detection and reconstruction of 3D planes from a posed monocular video.
no code implementations • 27 May 2022 • Dmitry Petrov, Matheus Gadelha, Radomir Mech, Evangelos Kalogerakis
Reconstructions can be obtained in two ways: (i) by directly decoding the part latent codes to part implicit functions, then combining them into the final shape; or (ii) by using part latents to retrieve similar part instances in a part database and assembling them in a single shape.
1 code implementation • 27 Dec 2021 • Gopal Sharma, Bidya Dash, Aruni RoyChowdhury, Matheus Gadelha, Marios Loizou, Liangliang Cao, Rui Wang, Erik Learned-Miller, Subhransu Maji, Evangelos Kalogerakis
We present PriFit, a semi-supervised approach for label-efficient learning of 3D point cloud segmentation networks.
no code implementations • 8 Apr 2020 • Matheus Gadelha, Rui Wang, Subhransu Maji
We present a prior for manifold structured data, such as surfaces of 3D shapes, where deep neural networks are adopted to reconstruct a target shape using gradient descent starting from a random initialization.
no code implementations • CVPR 2020 • Matheus Gadelha, Giorgio Gori, Duygu Ceylan, Radomir Mech, Nathan Carr, Tamy Boubekeur, Rui Wang, Subhransu Maji
We present a generative model to synthesize 3D shapes as sets of handles -- lightweight proxies that approximate the original 3D shape -- for applications in interactive editing, shape parsing, and building compact 3D representations.
1 code implementation • ECCV 2020 • Matheus Gadelha, Aruni RoyChowdhury, Gopal Sharma, Evangelos Kalogerakis, Liangliang Cao, Erik Learned-Miller, Rui Wang, Subhransu Maji
The problems of shape classification and part segmentation from 3D point clouds have garnered increasing attention in the last few years.
no code implementations • ICCV 2019 • Matheus Gadelha, Rui Wang, Subhransu Maji
We investigate the problem of reconstructing shapes from noisy and incomplete projections in the presence of viewpoint uncertainities.
no code implementations • 11 Jun 2019 • Matheus Gadelha, Aartika Rai, Subhransu Maji, Rui Wang
To this end, we present new differentiable projection operators that can be used by PrGAN to learn better 3D generative models.
1 code implementation • CVPR 2019 • Zezhou Cheng, Matheus Gadelha, Subhransu Maji, Daniel Sheldon
The deep image prior was recently introduced as a prior for natural images.
no code implementations • 7 Sep 2018 • Jong-Chyi Su, Matheus Gadelha, Rui Wang, Subhransu Maji
We investigate the role of representations and architectures for classifying 3D shapes in terms of their computational efficiency, generalization, and robustness to adversarial transformations.
1 code implementation • ECCV 2018 • Matheus Gadelha, Rui Wang, Subhransu Maji
We present multiresolution tree-structured networks to process point clouds for 3D shape understanding and generation tasks.
3 code implementations • 20 Jul 2017 • Zhaoliang Lun, Matheus Gadelha, Evangelos Kalogerakis, Subhransu Maji, Rui Wang
The decoder converts this representation into depth and normal maps capturing the underlying surface from several output viewpoints.
no code implementations • 19 Jul 2017 • Matheus Gadelha, Subhransu Maji, Rui Wang
We propose to use the expressive power of neural networks to learn a distribution over the shape coefficients in a generative-adversarial framework.
no code implementations • 18 Dec 2016 • Matheus Gadelha, Subhransu Maji, Rui Wang
In this paper we investigate the problem of inducing a distribution over three-dimensional structures given two-dimensional views of multiple objects taken from unknown viewpoints.