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LiDAR datasets for autonomous driving exhibit biases in properties such as point cloud density, range, and object dimensions. As a result, object detection networks trained and evaluated in different environments often experience…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Deepti Hegde , Suhas Lohit , Kuan-Chuan Peng , Michael J. Jones , Vishal M. Patel

Mobile robots and autonomous vehicles rely on multi-modal sensor setups to perceive and understand their surroundings. Aside from cameras, LiDAR sensors represent a central component of state-of-the-art perception systems. In addition to…

Computer Vision and Pattern Recognition · Computer Science 2018-04-27 Florian Piewak , Peter Pinggera , Manuel Schäfer , David Peter , Beate Schwarz , Nick Schneider , David Pfeiffer , Markus Enzweiler , Marius Zöllner

State-of-the-art 3D object detectors are often trained on massive labeled datasets. However, annotating 3D bounding boxes remains prohibitively expensive and time-consuming, particularly for LiDAR. Instead, recent works demonstrate that…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Mehar Khurana , Neehar Peri , James Hays , Deva Ramanan

As camera and LiDAR sensors capture complementary information used in autonomous driving, great efforts have been made to develop semantic segmentation algorithms through multi-modality data fusion. However, fusion-based approaches require…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Xu Yan , Jiantao Gao , Chaoda Zheng , Chao Zheng , Ruimao Zhang , Shenghui Cui , Zhen Li

Over the past few years, there has been remarkable progress in research on 3D point clouds and their use in autonomous driving scenarios has become widespread. However, deep learning methods heavily rely on annotated data and often face…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Jin Fang , Dingfu Zhou , Jingjing Zhao , Chenming Wu , Chulin Tang , Cheng-Zhong Xu , Liangjun Zhang

Existing 3D object detection suffers from expensive annotation costs and poor transferability to unknown data due to the domain gap, Unsupervised Domain Adaptation (UDA) aims to generalize detection models trained in labeled source domains…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Yanan Zhang , Chao Zhou , Di Huang

Supervised 3D Object Detection models have been displaying increasingly better performance in single-domain cases where the training data comes from the same environment and sensor as the testing data. However, in real-world scenarios data…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Louis Soum-Fontez , Jean-Emmanuel Deschaud , François Goulette

Cross-modal Unsupervised Domain Adaptation (UDA) aims to exploit the complementarity of 2D-3D data to overcome the lack of annotation in a new domain. However, UDA methods rely on access to the target domain during training, meaning the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Miaoyu Li , Yachao Zhang , Xu MA , Yanyun Qu , Yun Fu

Cross-domain text classification aims at building a classifier for a target domain which leverages data from both source and target domain. One promising idea is to minimize the feature distribution differences of the two domains. Most…

Computation and Language · Computer Science 2019-01-07 Baoyu Jing , Chenwei Lu , Deqing Wang , Fuzhen Zhuang , Cheng Niu

Deep-learning models for 3D point cloud semantic segmentation exhibit limited generalization capabilities when trained and tested on data captured with different sensors or in varying environments due to domain shift. Domain adaptation…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Cristiano Saltori , Fabio Galasso , Giuseppe Fiameni , Nicu Sebe , Fabio Poiesi , Elisa Ricci

We explore the potential of large-scale noisily labeled data to enhance feature learning by pretraining semantic segmentation models within a multi-modal framework for geospatial applications. We propose a novel Cross-modal Sample Selection…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Chenying Liu , Conrad Albrecht , Yi Wang , Xiao Xiang Zhu

Deep learning models such as convolutional neural net- work have been widely used in 3D biomedical segmentation and achieve state-of-the-art performance. However, most of them often adapt a single modality or stack multiple modalities as…

Computer Vision and Pattern Recognition · Computer Science 2017-04-26 Kuan-Lun Tseng , Yen-Liang Lin , Winston Hsu , Chung-Yang Huang

Due to the ever-growing diversity of the data source, multi-modality feature learning has attracted more and more attention. However, most of these methods are designed by jointly learning feature representation from multi-modalities that…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Danfeng Hong , Jocelyn Chanussot , Naoto Yokoya , Jian Kang , Xiao Xiang Zhu

With the advancement of autonomous driving, numerous annotated multi-modality datasets have become available. This presents an opportunity to develop domain-adaptive 3D object detectors for new environments without relying on…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Xiaohu Lu , Hamed Khatounabadi , Hayder Radha

We present a boundary-aware domain adaptation model for LiDAR scan full-scene semantic segmentation (LiDARNet). Our model can extract both the domain private features and the domain shared features with a two-branch structure. We embedded…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Peng Jiang , Srikanth Saripalli

Unsupervised domain adaptation (UDA) has been a potent technique to handle the lack of annotations in the target domain, particularly in semantic segmentation task. This study introduces a different UDA scenarios where the target domain…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Fei Pan , Xu Yin , Seokju Lee , Axi Niu , Sungeui Yoon , In So Kweon

Transferring knowledge learned from the labeled source domain to the raw target domain for unsupervised domain adaptation (UDA) is essential to the scalable deployment of autonomous driving systems. State-of-the-art methods in UDA often…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Lingdong Kong , Niamul Quader , Venice Erin Liong

We present a novel unsupervised domain adaptation method for semantic segmentation that generalizes a model trained with source images and corresponding ground-truth labels to a target domain. A key to domain adaptive semantic segmentation…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Geon Lee , Chanho Eom , Wonkyung Lee , Hyekang Park , Bumsub Ham

Unsupervised domain adaptation (UDA) aims to align the labelled source distribution with the unlabelled target distribution to obtain domain-invariant predictive models. Since cross-modality medical data exhibit significant intra and…

Computer Vision and Pattern Recognition · Computer Science 2024-02-26 Fengming Lin , Yan Xia , Michael MacRaild , Yash Deo , Haoran Dou , Qiongyao Liu , Kun Wu , Nishant Ravikumar , Alejandro F. Frangi

Scene understanding is a pivotal task for autonomous vehicles to safely navigate in the environment. Recent advances in deep learning enable accurate semantic reconstruction of the surroundings from LiDAR data. However, these models…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Borna Bešić , Nikhil Gosala , Daniele Cattaneo , Abhinav Valada