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Collaborative 3D object detection, with its improved interaction advantage among multiple agents, has been widely explored in autonomous driving. However, existing collaborative 3D object detectors in a fully supervised paradigm heavily…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Yushan Han , Hui Zhang , Honglei Zhang , Yidong Li

Global registration of point clouds aims to find an optimal alignment of a sequence of 2D or 3D point sets. In this paper, we present a novel method that takes advantage of current deep learning techniques for unsupervised learning of…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Lingjing Wang , Yi Shi , Xiang Li , Yi Fang

We investigate the problem of training generative models on a very sparse collection of 3D models. We use geometrically motivated energies to augment and thus boost a sparse collection of example (training) models. We analyze the Hessian of…

计算机视觉与模式识别 · 计算机科学 2022-05-02 Sanjeev Muralikrishnan , Siddhartha Chaudhuri , Noam Aigerman , Vladimir Kim , Matthew Fisher , Niloy Mitra

Capsule networks (see e.g. Hinton et al., 2018) aim to encode knowledge and reason about the relationship between an object and its parts. In this paper we specify a \emph{generative} model for such data, and derive a variational algorithm…

机器学习 · 计算机科学 2022-03-16 Alfredo Nazabal , Nikolaos Tsagkas , Christopher K. I. Williams

Foundation Models, which leverage large neural networks pre-trained on unlabelled data before fine-tuning for specific tasks, are increasingly being applied to specialised domains. Recent examples include ClimaX for climate and Clay for…

With the capacity of modeling long-range dependencies in sequential data, transformers have shown remarkable performances in a variety of generative tasks such as image, audio, and text generation. Yet, taming them in generating less…

计算机视觉与模式识别 · 计算机科学 2022-04-06 An-Chieh Cheng , Xueting Li , Sifei Liu , Min Sun , Ming-Hsuan Yang

Sizing and fitting of Personal Protective Equipment (PPE) is a critical part of the product creation process; however, traditional methods to do this type of work can be labor intensive and based on limited or non-representative…

机器学习 · 计算机科学 2021-05-24 Jacob A. Searcy , Susan L. Sokolowski

We present Shap-MeD, a text-to-3D object generative model specialized in the biomedical domain. The objective of this study is to develop an assistant that facilitates the 3D modeling of medical objects, thereby reducing development time.…

图形学 · 计算机科学 2025-03-21 Nicolás Laverde , Melissa Robles , Johan Rodríguez

We present a novel approach to category-level 6D object pose and size estimation. To tackle intra-class shape variations, we learn canonical shape space (CASS), a unified representation for a large variety of instances of a certain object…

计算机视觉与模式识别 · 计算机科学 2021-11-23 Dengsheng Chen , Jun Li , Zheng Wang , Kai Xu

Recent advancements in self-supervised learning in the point cloud domain have demonstrated significant potential. However, these methods often suffer from drawbacks, including lengthy pre-training time, the necessity of reconstruction in…

计算机视觉与模式识别 · 计算机科学 2025-02-11 Ayumu Saito , Prachi Kudeshia , Jiju Poovvancheri

To date, most instance segmentation approaches are based on supervised learning that requires a considerable amount of annotated object contours as training ground truth. Here, we propose a framework that searches for the target object…

计算机视觉与模式识别 · 计算机科学 2023-09-12 Long Chen , Weiwen Zhang , Yuli Wu , Martin Strauch , Dorit Merhof

We present SCULPT, a novel 3D generative model for clothed and textured 3D meshes of humans. Specifically, we devise a deep neural network that learns to represent the geometry and appearance distribution of clothed human bodies. Training…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Soubhik Sanyal , Partha Ghosh , Jinlong Yang , Michael J. Black , Justus Thies , Timo Bolkart

Convolutional Neural Networks (CNNs) have performed extremely well on data represented by regularly arranged grids such as images. However, directly leveraging the classic convolution kernels or parameter sharing mechanisms on sparse 3D…

计算机视觉与模式识别 · 计算机科学 2019-09-30 Mingtao Feng , Liang Zhang , Xuefei Lin , Syed Zulqarnain Gilani , Ajmal Mian

3D generative shape modeling is a fundamental research area in computer vision and interactive computer graphics, with many real-world applications. This paper investigates the novel problem of generating 3D shape point cloud geometry from…

计算机视觉与模式识别 · 计算机科学 2020-07-17 Kaichun Mo , He Wang , Xinchen Yan , Leonidas J. Guibas

In this work, we propose to learn local descriptors for point clouds in a self-supervised manner. In each iteration of the training, the input of the network is merely one unlabeled point cloud. On top of our previous work, that directly…

机器人学 · 计算机科学 2020-03-12 Yijun Yuan , Jiawei Hou , Andreas Nüchter , Sören Schwertfeger

Semantic understanding of 3D point clouds is important for various robotics applications. Given that point-wise semantic annotation is expensive, in this paper, we address the challenge of learning models with extremely sparse labels. The…

计算机视觉与模式识别 · 计算机科学 2021-09-20 Liyi Luo , Beiwen Tian , Hao Zhao , Guyue Zhou

Unsupervised approaches to learning in neural networks are of substantial interest for furthering artificial intelligence, both because they would enable the training of networks without the need for large numbers of expensive annotations,…

计算机视觉与模式识别 · 计算机科学 2019-04-11 Chengxu Zhuang , Alex Lin Zhai , Daniel Yamins

We present a novel algorithm for point cloud segmentation. Our approach transforms unstructured point clouds into regular voxel grids, and further uses a kernel-based interpolated variational autoencoder (VAE) architecture to encode the…

图形学 · 计算机科学 2019-08-21 Hsien-Yu Meng , Lin Gao , YuKun Lai , Dinesh Manocha

In the recent years, the research community has witnessed growing use of 3D point cloud data for the high applicability in various real-world applications. By means of 3D point cloud, this modality enables to consider the actual size and…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Daichi Otsuka , Shinichi Mae , Ryosuke Yamada , Hirokatsu Kataoka

While 3D content generation has advanced significantly, existing methods still face challenges with input formats, latent space design, and output representations. This paper introduces a novel 3D generation framework that addresses these…

计算机视觉与模式识别 · 计算机科学 2025-04-11 Yushi Lan , Shangchen Zhou , Zhaoyang Lyu , Fangzhou Hong , Shuai Yang , Bo Dai , Xingang Pan , Chen Change Loy