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Estimating continuous optical flow is a fundamental yet challenging problem in dynamic visual perception. Event-based cameras, with microsecond latency and high dynamic range, capture brightness changes asynchronously, offering a unique…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Rui Hu , Song Wu , Wen Yang , Jinjian Wu

3D Semantic Scene Completion (SSC) can provide dense geometric and semantic scene representations, which can be applied in the field of autonomous driving and robotic systems. It is challenging to estimate the complete geometry and…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Ruihang Miao , Weizhou Liu , Mingrui Chen , Zheng Gong , Weixin Xu , Chen Hu , Shuchang Zhou

Camera-based 3D semantic scene completion (SSC) provides dense geometric and semantic perception for autonomous driving. However, images provide limited information making the model susceptible to geometric ambiguity caused by occlusion and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Meng Wang , Huilong Pi , Ruihui Li , Yunchuan Qin , Zhuo Tang , Kenli Li

Semantic Scene Completion (SSC) aims to jointly generate space occupancies and semantic labels for complex 3D scenes. Most existing SSC models focus on volumetric representations, which are memory-inefficient for large outdoor spaces. Point…

Computer Vision and Pattern Recognition · Computer Science 2024-03-08 Yuxiang Yan , Boda Liu , Jianfei Ai , Qinbu Li , Ru Wan , Jian Pu

Existing rectified flow models are based on linear trajectories between data and noise distributions. This linearity enforces zero curvature, which can inadvertently force the image generation process through low-probability regions of the…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Yan Luo , Drake Du , Hao Huang , Yi Fang , Mengyu Wang

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

In this paper, we study the problem of jointly estimating the optical flow and scene flow from synchronized 2D and 3D data. Previous methods either employ a complex pipeline that splits the joint task into independent stages, or fuse 2D and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Haisong Liu , Tao Lu , Yihui Xu , Jia Liu , Limin Wang

Semantic Scene Completion (SSC) is essential for 3D perception in mobile robotics, as it enables holistic scene understanding by jointly estimating dense volumetric occupancy and per-voxel semantics. Although SSC has been widely studied in…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Markus Gross , Sai B. Matha , Aya Fahmy , Rui Song , Daniel Cremers , Henri Meess

Vision-based 3D semantic scene completion (SSC) describes autonomous driving scenes through 3D volume representations. However, the occlusion of invisible voxels by scene surfaces poses challenges to current SSC methods in hallucinating…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Xiao Zhao , Bo Chen , Mingyang Sun , Dingkang Yang , Youxing Wang , Xukun Zhang , Mingcheng Li , Dongliang Kou , Xiaoyi Wei , Lihua Zhang

3D semantic occupancy prediction is a pivotal task in the field of autonomous driving. Recent approaches have made great advances in 3D semantic occupancy predictions on a single modality. However, multi-modal semantic occupancy prediction…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Jingyi Pan , Zipeng Wang , Lin Wang

Scene flow estimation predicts the 3D motion at each point in successive LiDAR scans. This detailed, point-level, information can help autonomous vehicles to accurately predict and understand dynamic changes in their surroundings. Current…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Qingwen Zhang , Yi Yang , Peizheng Li , Olov Andersson , Patric Jensfelt

Scene flow estimation is a crucial component in the development of autonomous driving and 3D robotics, providing valuable information for environment perception and navigation. Despite the advantages of learning-based scene flow estimation…

Computer Vision and Pattern Recognition · Computer Science 2024-01-08 Rahul Ahuja , Chris Baker , Wilko Schwarting

Semantic Scene Completion (SSC) aims to simultaneously predict the volumetric occupancy and semantic category of a 3D scene. It helps intelligent devices to understand and interact with the surrounding scenes. Due to the high-memory…

Computer Vision and Pattern Recognition · Computer Science 2019-08-02 Pingping Zhang , Wei Liu , Yinjie Lei , Huchuan Lu , Xiaoyun Yang

The goal of the Semantic Scene Completion (SSC) task is to simultaneously predict a completed 3D voxel representation of volumetric occupancy and semantic labels of objects in the scene from a single-view observation. Since the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Xiaokang Chen , Kwan-Yee Lin , Chen Qian , Gang Zeng , Hongsheng Li

3D Semantic Scene Completion (SSC) has gained increasing attention due to its pivotal role in 3D perception. Recent advancements have primarily focused on refining voxel-level features to construct 3D scenes. However, treating voxels as the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Enyu Liu , En Yu , Sijia Chen , Wenbing Tao

Accurate 3D semantic occupancy perception is essential for autonomous driving in complex environments with diverse and irregular objects. While vision-centric methods suffer from geometric inaccuracies, LiDAR-based approaches often lack…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Zhiqiang Wei , Lianqing Zheng , Jianan Liu , Tao Huang , Qing-Long Han , Wenwen Zhang , Fengdeng Zhang

Monocular scene understanding is a foundational component of autonomous systems. Within the spectrum of monocular perception topics, one crucial and useful task for holistic 3D scene understanding is semantic scene completion (SSC), which…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Yiming Li , Sihang Li , Xinhao Liu , Moonjun Gong , Kenan Li , Nuo Chen , Zijun Wang , Zhiheng Li , Tao Jiang , Fisher Yu , Yue Wang , Hang Zhao , Zhiding Yu , Chen Feng

Estimating 3D occupancy and motion at the vehicle's surroundings is essential for autonomous driving, enabling situational awareness in dynamic environments. Existing approaches jointly learn geometry and motion but rely on expensive 3D…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Xavier Timoneda , Markus Herb , Fabian Duerr , Daniel Goehring

Semantic scene completion (SSC) jointly predicts the semantics and geometry of the entire 3D scene, which plays an essential role in 3D scene understanding for autonomous driving systems. SSC has achieved rapid progress with the help of…

Computer Vision and Pattern Recognition · Computer Science 2023-06-28 Jianbiao Mei , Yu Yang , Mengmeng Wang , Tianxin Huang , Xuemeng Yang , Yong Liu

Recent advances in imitation learning for 3D robotic manipulation have shown promising results with diffusion-based policies. However, achieving human-level dexterity requires seamless integration of geometric precision and semantic…