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Panoptic segmentation of point clouds is a crucial task that enables autonomous vehicles to comprehend their vicinity using their highly accurate and reliable LiDAR sensors. Existing top-down approaches tackle this problem by either…

Computer Vision and Pattern Recognition · Computer Science 2021-11-05 Kshitij Sirohi , Rohit Mohan , Daniel Büscher , Wolfram Burgard , Abhinav Valada

Panoptic occupancy prediction aims to jointly infer voxel-wise semantics and instance identities within a unified 3D scene representation. Nevertheless, progress in this field remains constrained by the absence of high-quality 3D mesh…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Yi Feng , Junwu E , Zizhan Guo , Yu Ma , Hanli Wang , Rui Fan

Dense 3D reconstruction has many applications in automated driving including automated annotation validation, multimodal data augmentation, providing ground truth annotations for systems lacking LiDAR, as well as enhancing auto-labeling…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Shihao Shen , Louis Kerofsky , Varun Ravi Kumar , Senthil Yogamani

Semi-supervised 3D object detection (SS3DOD) aims to reduce costly 3D annotations utilizing unlabeled data. Recent studies adopt pseudo-label-based teacher-student frameworks and demonstrate impressive performance. The main challenge of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Taehun Kong , Tae-Kyun Kim

Data seems cheap to get, and in many ways it is, but the process of creating a high quality labeled dataset from a mass of data is time-consuming and expensive. With the advent of rich 3D repositories, photo-realistic rendering systems…

Computer Vision and Pattern Recognition · Computer Science 2016-09-09 Yair Movshovitz-Attias , Takeo Kanade , Yaser Sheikh

This paper aims to reduce the time to annotate images for panoptic segmentation, which requires annotating segmentation masks and class labels for all object instances and stuff regions. We formulate our approach as a collaborative process…

Computer Vision and Pattern Recognition · Computer Science 2020-12-16 Jasper R. R. Uijlings , Mykhaylo Andriluka , Vittorio Ferrari

Supervised learning in large discriminative models is a mainstay for modern computer vision. Such an approach necessitates investing in large-scale human-annotated datasets for achieving state-of-the-art results. In turn, the efficacy of…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Liang-Chieh Chen , Raphael Gontijo Lopes , Bowen Cheng , Maxwell D. Collins , Ekin D. Cubuk , Barret Zoph , Hartwig Adam , Jonathon Shlens

Manually annotating 3D point clouds is laborious and costly, limiting the training data preparation for deep learning in real-world object detection. While a few previous studies tried to automatically generate 3D bounding boxes from weak…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Chang Liu , Xiaoyan Qian , Xiaojuan Qi , Edmund Y. Lam , Siew-Chong Tan , Ngai Wong

Point cloud segmentation is a fundamental task in 3D. Despite recent progress on point cloud segmentation with the power of deep networks, current learning methods based on the clean label assumptions may fail with noisy labels. Yet, class…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Shuquan Ye , Dongdong Chen , Songfang Han , Jing Liao

3D object detection has become indispensable in the field of autonomous driving. To date, gratifying breakthroughs have been recorded in 3D object detection research, attributed to deep learning. However, deep learning algorithms are…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Yucheng Zhang , Masaki Fukuda , Yasunori Ishii , Kyoko Ohshima , Takayoshi Yamashita

In the past few years we have seen great advances in object perception (particularly in 4D space-time dimensions) thanks to deep learning methods. However, they typically rely on large amounts of high-quality labels to achieve good…

Computer Vision and Pattern Recognition · Computer Science 2021-03-15 Bin Yang , Min Bai , Ming Liang , Wenyuan Zeng , Raquel Urtasun

Accurate 3D object detection in real-world environments requires a huge amount of annotated data with high quality. Acquiring such data is tedious and expensive, and often needs repeated effort when a new sensor is adopted or when the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Jinsu Yoo , Zhenyang Feng , Tai-Yu Pan , Yihong Sun , Cheng Perng Phoo , Xiangyu Chen , Mark Campbell , Kilian Q. Weinberger , Bharath Hariharan , Wei-Lun Chao

As a rising task, panoptic segmentation is faced with challenges in both semantic segmentation and instance segmentation. However, in terms of speed and accuracy, existing LiDAR methods in the field are still limited. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Jinke Li , Xiao He , Yang Wen , Yuan Gao , Xiaoqiang Cheng , Dan Zhang

3D semantic scene labeling is a fundamental task for Autonomous Driving. Recent work shows the capability of Deep Neural Networks in labeling 3D point sets provided by sensors like LiDAR, and Radar. Imbalanced distribution of classes in the…

Computer Vision and Pattern Recognition · Computer Science 2019-06-27 Mohammed Abdou , Mahmoud Elkhateeb , Ibrahim Sobh , Ahmad Elsallab

This paper addresses the problem of holistic road scene understanding based on the integration of visual and range data. To achieve the grand goal, we propose an approach that jointly tackles object-level image segmentation and semantic…

Computer Vision and Pattern Recognition · Computer Science 2014-07-01 Wenqi Huang , Xiaojin Gong

Autonomous driving requires accurate scene understanding, including road geometry, traffic agents, and their semantic relationships. In online HD map generation scenarios, raster-based representations are well-suited to vision models but…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Zhigang Sun , Yiru Wang , Anqing Jiang , Shuo Wang , Yu Gao , Yuwen Heng , Shouyi Zhang , An He , Hao Jiang , Jinhao Chai , Zichong Gu , Wang Jijun , Shichen Tang , Lavdim Halilaj , Juergen Luettin , Hao Sun

Accurate 3D scene flow estimation is critical for autonomous systems to navigate dynamic environments safely, but creating the necessary large-scale, manually annotated datasets remains a significant bottleneck for developing robust…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Ajinkya Khoche , Qingwen Zhang , Yixi Cai , Sina Sharif Mansouri , Patric Jensfelt

This review thoroughly examines the role of semantically-aware Neural Radiance Fields (NeRFs) in visual scene understanding, covering an analysis of over 250 scholarly papers. It explores how NeRFs adeptly infer 3D representations for both…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Thang-Anh-Quan Nguyen , Amine Bourki , Mátyás Macudzinski , Anthony Brunel , Mohammed Bennamoun

Point clouds and high-resolution 3D data have become increasingly important in various fields, including surveying, construction, and virtual reality. However, simply having this data is not enough; to extract useful information, semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Sophia Schwarz , Tanja Pilz , Olaf Wysocki , Ludwig Hoegner , Uwe Stilla

LiDAR and camera fusion techniques are promising for achieving 3D object detection in autonomous driving. Most multi-modal 3D object detection frameworks integrate semantic knowledge from 2D images into 3D LiDAR point clouds to enhance…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Shaoqing Xu , Fang Li , Ziying Song , Jin Fang , Sifen Wang , Zhi-Xin Yang