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In this work, we propose a disentangled latent optimization-based method for parameterizing grouped deforming 3D objects into shape and deformation factors in an unsupervised manner. Our approach involves the joint optimization of a…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Mostofa Rafid Uddin , Jana Armouti , Umong Sain , Md Asib Rahman , Xingjian Li , Min Xu

Unsupervised object discovery aims to localize objects in images, while removing the dependence on annotations required by most deep learning-based methods. To address this problem, we propose a fully unsupervised, bottom-up approach, for…

计算机视觉与模式识别 · 计算机科学 2022-12-21 Sandra Kara , Hejer Ammar , Florian Chabot , Quoc-Cuong Pham

Recent research has seen numerous supervised learning-based methods for 3D shape segmentation and remarkable performance has been achieved on various benchmark datasets. These supervised methods require a large amount of annotated data to…

计算机视觉与模式识别 · 计算机科学 2021-07-08 Xiang Li , Lingjing Wang , Yi Fang

We address the problem of 3D shape completion from sparse and noisy point clouds, a fundamental problem in computer vision and robotics. Recent approaches are either data-driven or learning-based: Data-driven approaches rely on a shape…

计算机视觉与模式识别 · 计算机科学 2018-11-28 David Stutz , Andreas Geiger

Shape priors learned from data are commonly used to reconstruct 3D objects from partial or noisy data. Yet no such shape priors are available for indoor scenes, since typical 3D autoencoders cannot handle their scale, complexity, or…

计算机视觉与模式识别 · 计算机科学 2020-03-23 Chiyu Max Jiang , Avneesh Sud , Ameesh Makadia , Jingwei Huang , Matthias Nießner , Thomas Funkhouser

Visual scenes are extremely rich in diversity, not only because there are infinite combinations of objects and background, but also because the observations of the same scene may vary greatly with the change of viewpoints. When observing a…

计算机视觉与模式识别 · 计算机科学 2021-12-14 Jinyang Yuan , Bin Li , Xiangyang Xue

We show that generative models can be used to capture visual geometry constraints statistically. We use this fact to infer the 3D shape of object categories from raw single-view images. Differently from prior work, we use no external…

计算机视觉与模式识别 · 计算机科学 2019-06-05 Shangzhe Wu , Christian Rupprecht , Andrea Vedaldi

This paper proposes a unified vision-based manipulation framework using image contours of deformable/rigid objects. Instead of using human-defined cues, the robot automatically learns the features from processed vision data. Our method…

机器人学 · 计算机科学 2021-05-06 Jihong Zhu , David Navarro-Alarcon , Robin Passama , Andrea Cherubini

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

We present a learning framework for recovering the 3D shape, camera, and texture of an object from a single image. The shape is represented as a deformable 3D mesh model of an object category where a shape is parameterized by a learned mean…

计算机视觉与模式识别 · 计算机科学 2018-08-01 Angjoo Kanazawa , Shubham Tulsiani , Alexei A. Efros , Jitendra Malik

Keypoint detection and description play a central role in computer vision. Most existing methods are in the form of scene-level prediction, without returning the object classes of different keypoints. In this paper, we propose the…

计算机视觉与模式识别 · 计算机科学 2022-02-04 Chengliang Zhong , Chao Yang , Jinshan Qi , Fuchun Sun , Huaping Liu , Xiaodong Mu , Wenbing Huang

For non-rigid objects, predicting the 3D shape from 2D keypoint observations is ill-posed due to occlusions, and the need to disentangle changes in viewpoint and changes in shape. This challenge has often been addressed by embedding…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Shalini Maiti , Lourdes Agapito , Benjamin Graham

We study the problem of how to build a deep learning representation for 3D shape. Deep learning has shown to be very effective in variety of visual applications, such as image classification and object detection. However, it has not been…

计算机视觉与模式识别 · 计算机科学 2014-09-26 Zhuotun Zhu , Xinggang Wang , Song Bai , Cong Yao , Xiang Bai

In this paper, we propose an end-to-end framework that jointly learns keypoint detection, descriptor representation and cross-frame matching for the task of image-based 3D localization. Prior art has tackled each of these components…

计算机视觉与模式识别 · 计算机科学 2023-02-03 Xiangyu Xu , Li Guan , Enrique Dunn , Haoxiang Li , Gang Hua

We present a new domain adaptive self-training pipeline, named ST3D, for unsupervised domain adaptation on 3D object detection from point clouds. First, we pre-train the 3D detector on the source domain with our proposed random object…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Jihan Yang , Shaoshuai Shi , Zhe Wang , Hongsheng Li , Xiaojuan Qi

Holistic 3D scene understanding entails estimation of both layout configuration and object geometry in a 3D environment. Recent works have shown advances in 3D scene estimation from various input modalities (e.g., images, 3D scans), by…

计算机视觉与模式识别 · 计算机科学 2022-11-28 Yinyu Nie , Angela Dai , Xiaoguang Han , Matthias Nießner

In this paper a semi-supervised deep framework is proposed for the problem of 3D shape inverse rendering from a single 2D input image. The main structure of proposed framework consists of unsupervised pre-trained components which…

计算机视觉与模式识别 · 计算机科学 2017-11-17 Shima Kamyab , S. Zohreh Azimifar

We study the problem of inferring an object-centric scene representation from a single image, aiming to derive a representation that explains the image formation process, captures the scene's 3D nature, and is learned without supervision.…

计算机视觉与模式识别 · 计算机科学 2022-03-17 Hong-Xing Yu , Leonidas J. Guibas , Jiajun Wu

We present a method to learn the 3D surface of objects directly from a collection of images. Previous work achieved this capability by exploiting additional manual annotation, such as object pose, 3D surface templates, temporal continuity…

计算机视觉与模式识别 · 计算机科学 2018-11-28 Attila Szabó , Paolo Favaro

We propose a novel learnable representation for detail-preserving shape deformation. The goal of our method is to warp a source shape to match the general structure of a target shape, while preserving the surface details of the source. Our…

图形学 · 计算机科学 2020-03-20 Wang Yifan , Noam Aigerman , Vladimir G. Kim , Siddhartha Chaudhuri , Olga Sorkine-Hornung