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We propose a novel 3D shape parameterization by surface patches, that are oriented by 3D mesh quadrangulation of the shape. By encoding 3D surface detail on local patches, we learn a patch dictionary that identifies principal surface…

Computer Vision and Pattern Recognition · Computer Science 2017-09-21 Kripasindhu Sarkar , Kiran Varanasi , Didier Stricker

This paper proposes a novel method of learning by predicting view assignments with support samples (PAWS). The method trains a model to minimize a consistency loss, which ensures that different views of the same unlabeled instance are…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Mahmoud Assran , Mathilde Caron , Ishan Misra , Piotr Bojanowski , Armand Joulin , Nicolas Ballas , Michael Rabbat

Unsupervised domain adaptation aims to address the problem of classifying unlabeled samples from the target domain whilst labeled samples are only available from the source domain and the data distributions are different in these two…

Machine Learning · Computer Science 2019-11-20 Qian Wang , Toby P. Breckon

We propose a novel technique for producing high-quality 3D models that match a given target object image or scan. Our method is based on retrieving an existing shape from a database of 3D models and then deforming its parts to match the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Mikaela Angelina Uy , Vladimir G. Kim , Minhyuk Sung , Noam Aigerman , Siddhartha Chaudhuri , Leonidas Guibas

Semi-supervised semantic segmentation allows model to mine effective supervision from unlabeled data to complement label-guided training. Recent research has primarily focused on consistency regularization techniques, exploring…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Xiaoyang Wang , Huihui Bai , Limin Yu , Yao Zhao , Jimin Xiao

We propose a novel camera-based DNN method for 3D lane detection with uncertainty estimation. Our method is based on a semi-local, BEV, tile representation that breaks down lanes into simple lane segments. It combines learning a parametric…

Computer Vision and Pattern Recognition · Computer Science 2020-03-12 Netalee Efrat , Max Bluvstein , Noa Garnett , Dan Levi , Shaul Oron , Bat El Shlomo

Weakly supervised learning can help local feature methods to overcome the obstacle of acquiring a large-scale dataset with densely labeled correspondences. However, since weak supervision cannot distinguish the losses caused by the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Kunhong Li , Longguang Wang , Li Liu , Qing Ran , Kai Xu , Yulan Guo

This work tackles the problem of semi-supervised learning of image classifiers. Our main insight is that the field of semi-supervised learning can benefit from the quickly advancing field of self-supervised visual representation learning.…

Computer Vision and Pattern Recognition · Computer Science 2019-07-24 Xiaohua Zhai , Avital Oliver , Alexander Kolesnikov , Lucas Beyer

Current 3D object detection methods heavily rely on an enormous amount of annotations. Semi-supervised learning can be used to alleviate this issue. Previous semi-supervised 3D object detection methods directly follow the practice of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Xiaopei Wu , Yang Zhao , Liang Peng , Hua Chen , Xiaoshui Huang , Binbin Lin , Haifeng Liu , Deng Cai , Wanli Ouyang

In view of the fact that semi- and self-supervised learning share a fundamental principle, effectively modeling knowledge from unlabeled data, various semi-supervised semantic segmentation methods have integrated representative…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Yangyang Li , Xuanting Hao , Ronghua Shang , Licheng Jiao

We introduce a novel learning-based method for encoding and manipulating 3D surface meshes. Our method is specifically designed to create an interpretable embedding space for deformable shape collections. Unlike previous 3D mesh…

Computer Vision and Pattern Recognition · Computer Science 2023-10-30 Sara Hahner , Souhaib Attaiki , Jochen Garcke , Maks Ovsjanikov

3D shape completion is traditionally solved using supervised training or by distribution learning on complete shape examples. Recently self-supervised learning approaches that do not require any complete 3D shape examples have gained more…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Mengya Liu , Ajad Chhatkuli , Janis Postels , Luc Van Gool , Federico Tombari

Deep co-training has recently been proposed as an effective approach for image segmentation when annotated data is scarce. In this paper, we improve existing approaches for semi-supervised segmentation with a self-paced and self-consistent…

Computer Vision and Pattern Recognition · Computer Science 2021-07-15 Ping Wang , Jizong Peng , Marco Pedersoli , Yuanfeng Zhou , Caiming Zhang , Christian Desrosiers

Graph convolutional networks have made great progress in graph-based semi-supervised learning. Existing methods mainly assume that nodes connected by graph edges are prone to have similar attributes and labels, so that the features smoothed…

Machine Learning · Computer Science 2022-06-13 Yating Ren , Junzhong Ji , Lingfeng Niu , Minglong Lei

Self-supervised instance discrimination is an effective contrastive pretext task to learn feature representations and address limited medical image annotations. The idea is to make features of transformed versions of the same images similar…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Yejia Zhang , Xinrong Hu , Nishchal Sapkota , Yiyu Shi , Danny Z. Chen

Semi-supervised learning is a challenging problem which aims to construct a model by learning from limited labeled examples. Numerous methods for this task focus on utilizing the predictions of unlabeled instances consistency alone to…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Peng Tu , Yawen Huang , Feng Zheng , Zhenyu He , Liujun Cao , Ling Shao

Unsupervised landmarks discovery (ULD) for an object category is a challenging computer vision problem. In pursuit of developing a robust ULD framework, we explore the potential of a recent paradigm of self-supervised learning algorithms,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Siddharth Tourani , Ahmed Alwheibi , Arif Mahmood , Muhammad Haris Khan

We desgin a novel fully convolutional network architecture for shapes, denoted by Shape Fully Convolutional Networks (SFCN). 3D shapes are represented as graph structures in the SFCN architecture, based on novel graph convolution and…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Pengyu Wang , Yuan Gan , Panpan Shui , Fenggen Yu , Yan Zhang , Songle Chen , Zhengxing Sun

Recently, seismic facies classification based on convolutional neural networks (CNN) has garnered significant research interest. However, existing CNN-based supervised learning approaches necessitate massive labeled data. Labeling is…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Kewen Li , Wenlong Liu , Yimin Dou , Zhifeng Xu , Hongjie Duan , Ruilin Jing

Unsupervised feature learning for point clouds has been vital for large-scale point cloud understanding. Recent deep learning based methods depend on learning global geometry from self-reconstruction. However, these methods are still…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Zhizhong Han , Xiyang Wang , Yu-Shen Liu , Matthias Zwicker