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Semantic occupancy prediction aims to infer dense geometry and semantics of surroundings for an autonomous agent to operate safely in the 3D environment. Existing occupancy prediction methods are almost entirely trained on human-annotated…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Zhiyu Tan , Zichao Dong , Cheng Zhang , Weikun Zhang , Hang Ji , Hao Li

This technical report presents our solution, "occTransformer" for the 3D occupancy prediction track in the autonomous driving challenge at CVPR 2023. Our method builds upon the strong baseline BEVFormer and improves its performance through…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Jian Liu , Sipeng Zhang , Chuixin Kong , Wenyuan Zhang , Yuhang Wu , Yikang Ding , Borun Xu , Ruibo Ming , Donglai Wei , Xianming Liu

3D semantic occupancy prediction is essential for achieving safe, reliable autonomous driving and robotic navigation. Compared to camera-only perception systems, multi-modal pipelines, especially LiDAR-camera fusion methods, can produce…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Lingjun Zhao , Sizhe Wei , James Hays , Lu Gan

The 3D point cloud perception has emerged as a fundamental role for a wide range of applications. In particular, with the rapid development of neural networks, the voxel-based networks attract great attention due to their excellent…

Hardware Architecture · Computer Science 2024-10-01 Xipeng Lin , Shanshi Huang , Hongwu Jiang

Point clouds are crucial for capturing three-dimensional data but often suffer from incompleteness due to limitations such as resolution and occlusion. Traditional methods typically rely on point-based approaches within discriminative…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Guoqing Zhang , Jian Liu

In this paper, we explore a novel point representation for 3D occupancy prediction from multi-view images, which is named Occupancy as Set of Points. Existing camera-based methods tend to exploit dense volume-based representation to predict…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Yiang Shi , Tianheng Cheng , Qian Zhang , Wenyu Liu , Xinggang Wang

Multimodal large language models (MLLMs) have shown strong vision-language reasoning abilities but still lack robust 3D spatial understanding, which is critical for autonomous driving. This limitation stems from two key challenges: (1) the…

Artificial Intelligence · Computer Science 2025-09-09 Ruixun Liu , Lingyu Kong , Derun Li , Hang Zhao

In NeRF, a critical problem is to effectively estimate the occupancy to guide empty-space skipping and point sampling. Grid-based methods work well for small-scale scenes. However, on large-scale scenes, they are limited by predefined…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Zhenxing Mi , Dan Xu

Driving scene generation is a critical domain for autonomous driving, enabling downstream applications, including perception and planning evaluation. Occupancy-centric methods have recently achieved state-of-the-art results by offering…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Bohan Li , Xin Jin , Hu Zhu , Hongsi Liu , Ruikai Li , Jiazhe Guo , Kaiwen Cai , Chao Ma , Yueming Jin , Hao Zhao , Xiaokang Yang , Wenjun Zeng

Accurate perception of the surrounding environment is essential for safe autonomous driving. 3D occupancy prediction, which estimates detailed 3D structures of roads, buildings, and other objects, is particularly important for…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Chihiro Noguchi , Takaki Yamamoto

We present GDFusion, a temporal fusion method for vision-based 3D semantic occupancy prediction (VisionOcc). GDFusion opens up the underexplored aspects of temporal fusion within the VisionOcc framework, focusing on both temporal cues and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Dubing Chen , Huan Zheng , Jin Fang , Xingping Dong , Xianfei Li , Wenlong Liao , Tao He , Pai Peng , Jianbing Shen

Existing 3D occupancy networks demand significant hardware resources, hindering the deployment of edge devices. Binarized Neural Networks (BNN) offer substantially reduced computational and memory requirements. However, their performance…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Zongkai Zhang , Zidong Xu , Wenming Yang , Qingmin Liao , Jing-Hao Xue

Scene completion and forecasting are two popular perception problems in research for mobile agents like autonomous vehicles. Existing approaches treat the two problems in isolation, resulting in a separate perception of the two aspects. In…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Xinhao Liu , Moonjun Gong , Qi Fang , Haoyu Xie , Yiming Li , Hang Zhao , Chen Feng

Camera-based 3D semantic scene completion (SSC) plays a crucial role in autonomous driving, enabling voxelized 3D scene understanding for effective scene perception and decision-making. Existing SSC methods have shown efficacy in improving…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Zhiwen Yang , Yuxin Peng

The advancement of autonomous driving is increasingly reliant on high-quality annotated datasets, especially in the task of 3D occupancy prediction, where the occupancy labels require dense 3D annotation with significant human effort. In…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Leheng Li , Weichao Qiu , Yingjie Cai , Xu Yan , Qing Lian , Bingbing Liu , Ying-Cong Chen

Image matching is a fundamental and critical task in various visual applications, such as Simultaneous Localization and Mapping (SLAM) and image retrieval, which require accurate pose estimation. However, most existing methods ignore the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Miao Fan , Mingrui Chen , Chen Hu , Shuchang Zhou

Autonomous driving requires a persistent understanding of 3D scenes that is robust to temporal disturbances and accounts for potential future actions. We introduce a new concept of 4D Occupancy Spatio-Temporal Persistence (OccSTeP), which…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Yu Zheng , Jie Hu , Kailun Yang , Jiaming Zhang

Understanding and reconstructing the 3D world through omnidirectional perception is an inevitable trend in the development of autonomous agents and embodied intelligence. However, existing 3D occupancy prediction methods are constrained by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Mengfei Duan , Hao Shi , Fei Teng , Guoqiang Zhao , Yuheng Zhang , Zhiyong Li , Kailun Yang

3D semantic occupancy prediction aims to reconstruct the 3D geometry and semantics of the surrounding environment. With dense voxel labels, prior works typically formulate it as a dense segmentation task, independently classifying each…

Graphics · Computer Science 2025-06-06 Wuyang Li , Zhu Yu , Alexandre Alahi

The multi-line LiDAR is widely used in autonomous vehicles, so point cloud-based 3D detectors are essential for autonomous driving. Extracting rich multi-scale features is crucial for point cloud-based 3D detectors in autonomous driving due…

Computer Vision and Pattern Recognition · Computer Science 2024-11-14 Xusheng Li , Chengliang Wang , Shumao Wang , Zhuo Zeng , Ji Liu