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Resource-constrained perception systems such as edge computing and vision-for-robotics require vision models to be both accurate and lightweight in computation and memory usage. While knowledge distillation is a proven strategy to enhance…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Shengcao Cao , Mengtian Li , James Hays , Deva Ramanan , Yi-Xiong Wang , Liang-Yan Gui

Most automated driving systems comprise a diverse sensor set, including several cameras, Radars, and LiDARs, ensuring a complete 360\deg coverage in near and far regions. Unlike Radar and LiDAR, which measure directly in 3D, cameras capture…

Previous knowledge distillation (KD) methods mostly focus on compressing network architectures, which is not thorough enough in deployment as some costs like transmission bandwidth and imaging equipment are related to the image size.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Guangyu Guo , Dingwen Zhang , Longfei Han , Nian Liu , Ming-Ming Cheng , Junwei Han

2D RGB images and 3D LIDAR point clouds provide complementary knowledge for the perception system of autonomous vehicles. Several 2D and 3D fusion methods have been explored for the LIDAR semantic segmentation task, but they suffer from…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 Jun Cen , Shiwei Zhang , Yixuan Pei , Kun Li , Hang Zheng , Maochun Luo , Yingya Zhang , Qifeng Chen

Accurate 3D scene understanding in outdoor environments heavily relies on high-quality point clouds. However, LiDAR-scanned data often suffer from extreme sparsity, severely hindering downstream 3D perception tasks. Existing point cloud…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Xianjing Cheng , Lintai Wu , Zuowen Wang , Junhui Hou , Jie Wen , Yong Xu

Bird's eye view (BEV) is widely adopted by most of the current point cloud detectors due to the applicability of well-explored 2D detection techniques. However, existing methods obtain BEV features by simply collapsing voxel or point…

Computer Vision and Pattern Recognition · Computer Science 2023-01-30 Dihe Huang , Ying Chen , Yikang Ding , Jinli Liao , Jianlin Liu , Kai Wu , Qiang Nie , Yong Liu , Chengjie Wang , Zhiheng Li

Camera-based temporal 3D object detection has shown impressive results in autonomous driving, with offline models improving accuracy by using future frames. Knowledge distillation (KD) can be an appealing framework for transferring rich…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Haowen Zheng , Hu Zhu , Lu Deng , Weihao Gu , Yang Yang , Yanyan Liang

Autonomous driving is an important and safety-critical task, and recent advances in LLMs/VLMs have opened new possibilities for reasoning and planning in this domain. However, large models demand substantial GPU memory and exhibit high…

Bird's-eye-view (BEV) semantic segmentation is becoming crucial in autonomous driving systems. It realizes ego-vehicle surrounding environment perception by projecting 2D multi-view images into 3D world space. Recently, BEV segmentation has…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Jian Sun , Yuqi Dai , Chi-Man Vong , Qing Xu , Shengbo Eben Li , Jianqiang Wang , Lei He , Keqiang Li

Identifying labels that did not appear during training, known as multi-label zero-shot learning, is a non-trivial task in computer vision. To this end, recent studies have attempted to explore the multi-modal knowledge of vision-language…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Xuelin Zhu , Jian Liu , Dongqi Tang , Jiawei Ge , Weijia Liu , Bo Liu , Jiuxin Cao

We explore Bird's-Eye View (BEV) generation, converting a BEV map into its corresponding multi-view street images. Valued for its unified spatial representation aiding multi-sensor fusion, BEV is pivotal for various autonomous driving…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Xiaojie Xu , Tianshuo Xu , Fulong Ma , Yingcong Chen

3D object detection using LiDAR data is an indispensable component for autonomous driving systems. Yet, only a few LiDAR-based 3D object detection methods leverage segmentation information to further guide the detection process. In this…

Computer Vision and Pattern Recognition · Computer Science 2022-03-07 Hamidreza Fazlali , Yixuan Xu , Yuan Ren , Bingbing Liu

For visual recognition, knowledge distillation typically involves transferring knowledge from a large, well-trained teacher model to a smaller student model. In this paper, we introduce an effective method to distill knowledge from an…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Zaiwei Zhang , Gregory P. Meyer , Zhichao Lu , Ashish Shrivastava , Avinash Ravichandran , Eric M. Wolff

Camera-based bird-eye-view (BEV) perception paradigm has made significant progress in the autonomous driving field. Under such a paradigm, accurate BEV representation construction relies on reliable depth estimation for multi-camera images.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Yang Jiao , Zequn Jie , Shaoxiang Chen , Lechao Cheng , Jingjing Chen , Lin Ma , Yu-Gang Jiang

Large-scale 3D vision-language models (VLMs) like LLaVA-3D offer strong spatial reasoning but are difficult to deploy due to high computational costs. We propose a knowledge distillation framework that transfers spatial reasoning from a 7B…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Alaa Asfour , Christopher Indris , Leihan Chen , Tejas Vyas , Guanghui Wang

3D vehicle detection based on point cloud is a challenging task in real-world applications such as autonomous driving. Despite significant progress has been made, we observe two aspects to be further improved. First, the semantic context…

Computer Vision and Pattern Recognition · Computer Science 2020-02-14 Hongwei Yi , Shaoshuai Shi , Mingyu Ding , Jiankai Sun , Kui Xu , Hui Zhou , Zhe Wang , Sheng Li , Guoping Wang

Knowledge distillation, transferring knowledge from a teacher model to a student model, has emerged as a powerful technique in neural machine translation for compressing models or simplifying training targets. Knowledge distillation…

Computation and Language · Computer Science 2024-04-24 Jingxuan Wei , Linzhuang Sun , Yichong Leng , Xu Tan , Bihui Yu , Ruifeng Guo

In recent years 3D object detection from LiDAR point clouds has made great progress thanks to the development of deep learning technologies. Although voxel or point based methods are popular in 3D object detection, they usually involve…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Jiaqi Gu , Zhiyu Xiang , Pan Zhao , Tingming Bai , Lingxuan Wang , Xijun Zhao , Zhiyuan Zhang

Semantic segmentation of 3D LiDAR point clouds, essential for autonomous driving and infrastructure management, is best achieved by supervised learning, which demands extensive annotated datasets and faces the problem of domain shifts. We…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Andrew Caunes , Thierry Chateau , Vincent Frémont

Indoor scene semantic parsing from RGB images is very challenging due to occlusions, object distortion, and viewpoint variations. Going beyond prior works that leverage geometry information, typically paired depth maps, we present a new…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Zhengzhe Liu , Xiaojuan Qi , Chi-Wing Fu