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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

Camera and radar sensors have significant advantages in cost, reliability, and maintenance compared to LiDAR. Existing fusion methods often fuse the outputs of single modalities at the result-level, called the late fusion strategy. This can…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Youngseok Kim , Sanmin Kim , Jun Won Choi , Dongsuk Kum

There are two critical sensors for 3D perception in autonomous driving, the camera and the LiDAR. The camera provides rich semantic information such as color, texture, and the LiDAR reflects the 3D shape and locations of surrounding…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Kaicheng Yu , Tang Tao , Hongwei Xie , Zhiwei Lin , Zhongwei Wu , Zhongyu Xia , Tingting Liang , Haiyang Sun , Jiong Deng , Dayang Hao , Yongtao Wang , Xiaodan Liang , Bing Wang

Multispectral pedestrian detection has been shown to be effective in improving performance within complex illumination scenarios. However, prevalent double-stream networks in multispectral detection employ two separate feature extraction…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Zizhao Chen , Yeqiang Qian , Xiaoxiao Yang , Chunxiang Wang , Ming Yang

The success of large-scale visual language pretraining (VLP) models has driven widespread adoption of image-text retrieval tasks. However, their deployment on mobile devices remains limited due to large model sizes and computational…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Yuqi Li , Chuanguang Yang , Junhao Dong , Zhengtao Yao , Haoyan Xu , Zeyu Dong , Hansheng Zeng , Zhulin An , Yingli Tian

In this paper, we propose the LiDAR Distillation to bridge the domain gap induced by different LiDAR beams for 3D object detection. In many real-world applications, the LiDAR points used by mass-produced robots and vehicles usually have…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Yi Wei , Zibu Wei , Yongming Rao , Jiaxin Li , Jie Zhou , Jiwen Lu

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

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

In instance-level detection tasks (e.g., object detection), reducing input resolution is an easy option to improve runtime efficiency. However, this option traditionally hurts the detection performance much. This paper focuses on boosting…

Computer Vision and Pattern Recognition · Computer Science 2021-09-16 Lu Qi , Jason Kuen , Jiuxiang Gu , Zhe Lin , Yi Wang , Yukang Chen , Yanwei Li , Jiaya Jia

The LiDAR 3D object detector that strikes a balance between accuracy and speed is crucial for achieving real-time perception in autonomous driving. However, many existing LiDAR detection models depend on complex feature transformations,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Rui Yu , Runkai Zhao , Jiagen Li , Qingsong Zhao , HuaiCheng Yan , Meng Wang

LiDAR and camera, as two different sensors, supply geometric (point clouds) and semantic (RGB images) information of 3D scenes. However, it is still challenging for existing methods to fuse data from the two cross sensors, making them…

Computer Vision and Pattern Recognition · Computer Science 2022-11-18 Yiyang Shen , Rongwei Yu , Peng Wu , Haoran Xie , Lina Gong , Jing Qin , Mingqiang Wei

Knowledge distillation is an effective method for model compression. However, it is still a challenging topic to apply knowledge distillation to detection tasks. There are two key points resulting in poor distillation performance for…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Zhenliang Ni , Fukui Yang , Shengzhao Wen , Gang Zhang

Most of recent attention-guided feature masking distillation methods perform knowledge transfer via global teacher attention maps without delving into fine-grained clues. Instead, performing distillation at finer granularity is conducive to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Zhourui Zhang , Jun Li , Jiayan Li , Jianhua Xu

The widespread use of multi-sensor systems has increased research in multi-view action recognition. While existing approaches in multi-view setups with fully overlapping sensors benefit from consistent view coverage, partially overlapping…

Computer Vision and Pattern Recognition · Computer Science 2025-12-25 Trung Thanh Nguyen , Yasutomo Kawanishi , Vijay John , Takahiro Komamizu , Ichiro Ide

Automatic disease image grading is a significant application of artificial intelligence for healthcare, enabling faster and more accurate patient assessments. However, domain shifts, which are exacerbated by data imbalance, introduce bias…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Shuo Tong , Shangde Gao , Ke Liu , Zihang Huang , Hongxia Xu , Haochao Ying , Jian Wu

Knowledge Distillation has shown very promising abil-ity in transferring learned representation from the largermodel (teacher) to the smaller one (student).Despitemany efforts, prior methods ignore the important role ofretaining…

Computer Vision and Pattern Recognition · Computer Science 2022-02-09 Li Liu , Qingle Huang , Sihao Lin , Hongwei Xie , Bing Wang , Xiaojun Chang , Xiaodan Liang

Monocular 3D object detection is an inherently ill-posed problem, as it is challenging to predict accurate 3D localization from a single image. Existing monocular 3D detection knowledge distillation methods usually project the LiDAR onto…

Computer Vision and Pattern Recognition · Computer Science 2023-10-18 Sen Wang , Jin Zheng

Although multi-view 3D object detection based on the Bird's-Eye-View (BEV) paradigm has garnered widespread attention as an economical and deployment-friendly perception solution for autonomous driving, there is still a performance gap…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Zheng Jiang , Jinqing Zhang , Yanan Zhang , Qingjie Liu , Zhenghui Hu , Baohui Wang , Yunhong Wang

Developing accurate and efficient detectors for drone imagery is challenging due to the inherent complexity of aerial scenes. While some existing methods aim to achieve high accuracy by utilizing larger models, their computational cost is…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Bowei Du , Zhixuan Liao , Yanan Zhang , Zhi Cai , Jiaxin Chen , Di Huang

Knowledge distillation (KD) transfers knowledge from large teacher models to compact student models, enabling efficient deployment on resource constrained devices. While diverse KD methods, including response based, feature based, and…

Machine Learning · Computer Science 2026-01-23 Yinxi Tian , Changwu Huang , Ke Tang , Xin Yao