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4D LiDAR semantic segmentation, also referred to as multi-scan semantic segmentation, plays a crucial role in enhancing the environmental understanding capabilities of autonomous vehicles or robots. It classifies the semantic category of…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Neng Wang , Ruibin Guo , Chenghao Shi , Ziyue Wang , Hui Zhang , Huimin Lu , Zhiqiang Zheng , Xieyuanli Chen

In this paper, we present LiRaNet, a novel end-to-end trajectory prediction method which utilizes radar sensor information along with widely used lidar and high definition (HD) maps. Automotive radar provides rich, complementary…

Computer Vision and Pattern Recognition · Computer Science 2020-11-16 Meet Shah , Zhiling Huang , Ankit Laddha , Matthew Langford , Blake Barber , Sidney Zhang , Carlos Vallespi-Gonzalez , Raquel Urtasun

LiDAR panoptic segmentation facilitates an autonomous vehicle to comprehensively understand the surrounding objects and scenes and is required to run in real time. The recent proposal-free methods accelerate the algorithm, but their…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Xiaoyan Li , Gang Zhang , Boyue Wang , Yongli Hu , Baocai Yin

In this paper, we present an extension to LaserNet, an efficient and state-of-the-art LiDAR based 3D object detector. We propose a method for fusing image data with the LiDAR data and show that this sensor fusion method improves the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Gregory P. Meyer , Jake Charland , Darshan Hegde , Ankit Laddha , Carlos Vallespi-Gonzalez

Temporal semantic scene understanding is critical for self-driving cars or robots operating in dynamic environments. In this paper, we propose 4D panoptic LiDAR segmentation to assign a semantic class and a temporally-consistent instance ID…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Mehmet Aygün , Aljoša Ošep , Mark Weber , Maxim Maximov , Cyrill Stachniss , Jens Behley , Laura Leal-Taixé

Scene understanding based on LiDAR point cloud is an essential task for autonomous cars to drive safely, which often employs spherical projection to map 3D point cloud into multi-channel 2D images for semantic segmentation. Most existing…

Computer Vision and Pattern Recognition · Computer Science 2021-07-19 Aoran Xiao , Xiaofei Yang , Shijian Lu , Dayan Guan , Jiaxing Huang

In recent studies, numerous previous works emphasize the importance of semantic segmentation of LiDAR data as a critical component to the development of driver-assistance systems and autonomous vehicles. However, many state-of-the-art…

Camera and 3D LiDAR sensors have become indispensable devices in modern autonomous driving vehicles, where the camera provides the fine-grained texture, color information in 2D space and LiDAR captures more precise and farther-away distance…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Lin Zhao , Hui Zhou , Xinge Zhu , Xiao Song , Hongsheng Li , Wenbing Tao

Image semantic segmentation aims at the pixel-level classification of images, which has requirements for both accuracy and speed in practical application. Existing semantic segmentation methods mainly rely on the high-resolution input to…

Computer Vision and Pattern Recognition · Computer Science 2022-11-07 Tianjiao Jiang , Yi Jin , Tengfei Liang , Xu Wang , Yidong Li

Real-time semantic segmentation plays a significant role in industry applications, such as autonomous driving, robotics and so on. It is a challenging task as both efficiency and performance need to be considered simultaneously. To address…

Computer Vision and Pattern Recognition · Computer Science 2019-11-19 Haiyang Si , Zhiqiang Zhang , Feifan Lv , Gang Yu , Feng Lu

RGB and thermal image fusion have great potential to exhibit improved semantic segmentation in low-illumination conditions. Existing methods typically employ a two-branch encoder framework for multimodal feature extraction and design…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Zhengwen Shen , Yulian Li , Han Zhang , Yuchen Weng , Jun Wang

Semantic segmentation has made encouraging progress due to the success of deep convolutional networks in recent years. Meanwhile, depth sensors become prevalent nowadays, so depth maps can be acquired more easily. However, there are few…

Computer Vision and Pattern Recognition · Computer Science 2019-05-21 Shang-Wei Hung , Shao-Yuan Lo , Hsueh-Ming Hang

Robust road segmentation is a key challenge in self-driving research. Though many image-based methods have been studied and high performances in dataset evaluations have been reported, developing robust and reliable road segmentation is…

Computer Vision and Pattern Recognition · Computer Science 2019-05-29 Huafeng Liu , Yazhou Yao , Zeren Sun , Xiangrui Li , Ke Jia , Zhenmin Tang

A unified and versatile LiDAR segmentation model with strong robustness and generalizability is desirable for safe autonomous driving perception. This work presents M3Net, a one-of-a-kind framework for fulfilling multi-task, multi-dataset,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-03 Youquan Liu , Lingdong Kong , Xiaoyang Wu , Runnan Chen , Xin Li , Liang Pan , Ziwei Liu , Yuexin Ma

Autonomous vehicles need to have a semantic understanding of the three-dimensional world around them in order to reason about their environment. State of the art methods use deep neural networks to predict semantic classes for each point in…

Computer Vision and Pattern Recognition · Computer Science 2021-09-27 Larissa T. Triess , David Peter , Christoph B. Rist , J. Marius Zöllner

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

High-resolution LiDAR data plays a critical role in 3D semantic segmentation for autonomous driving, but the high cost of advanced sensors limits large-scale deployment. In contrast, low-cost sensors such as 16-channel LiDAR produce sparse…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Alexandros Gkillas , Nikos Piperigkos , Aris S. Lalos

Semantic grids can be useful representations of the scene around an autonomous system. By having information about the layout of the space around itself, a robot can leverage this type of representation for crucial tasks such as navigation…

Robust real-time detection and motion forecasting of traffic participants is necessary for autonomous vehicles to safely navigate urban environments. In this paper, we present RV-FuseNet, a novel end-to-end approach for joint detection and…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Ankit Laddha , Shivam Gautam , Gregory P. Meyer , Carlos Vallespi-Gonzalez , Carl K. Wellington

Semantic Segmentation is a crucial component in the perception systems of many applications, such as robotics and autonomous driving that rely on accurate environmental perception and understanding. In literature, several approaches are…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Ran Cheng , Ryan Razani , Yuan Ren , Liu Bingbing