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Despite substantial progress in 3D object detection, advanced 3D detectors often suffer from heavy computation overheads. To this end, we explore the potential of knowledge distillation (KD) for developing efficient 3D object detectors,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Jihan Yang , Shaoshuai Shi , Runyu Ding , Zhe Wang , Xiaojuan Qi

Label assignment in object detection aims to assign targets, foreground or background, to sampled regions in an image. Unlike labeling for image classification, this problem is not well defined due to the object's bounding box. In this…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Chuong H. Nguyen , Thuy C. Nguyen , Tuan N. Tang , Nam L. H. Phan

High-performance Radar-Camera 3D object detection can be achieved by leveraging knowledge distillation without using LiDAR at inference time. However, existing distillation methods typically transfer modality-specific features directly to…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Shashank Mishra , Karan Patil , Didier Stricker , Jason Rambach

Vision foundation models (VFMs) such as DINO have led to a paradigm shift in 2D camera-based perception towards extracting generalized features to support many downstream tasks. Recent works introduce self-supervised cross-modal knowledge…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Hariprasath Govindarajan , Maciej K. Wozniak , Marvin Klingner , Camille Maurice , B Ravi Kiran , Senthil Yogamani

Knowledge distillation (KD) is an effective method for compressing models in object detection tasks. Due to limited computational capability, UAV-based object detection (UAV-OD) widely adopt the KD technique to obtain lightweight detectors.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Liang Yao , Fan Liu , Chuanyi Zhang , Zhiquan Ou , Ting Wu

Existing unsupervised keypoint detection methods apply artificial deformations to images such as masking a significant portion of images and using reconstruction of original image as a learning objective to detect keypoints. However, this…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Aman Anand , Elyas Rashno , Amir Eskandari , Farhana Zulkernine

In the field of 3D object detection for autonomous driving, LiDAR-Camera (LC) fusion is the top-performing sensor configuration. Still, LiDAR is relatively high cost, which hinders adoption of this technology for consumer automobiles.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Lingjun Zhao , Jingyu Song , Katherine A. Skinner

Semantic segmentation of 3D LiDAR data plays a pivotal role in autonomous driving. Traditional approaches rely on extensive annotated data for point cloud analysis, incurring high costs and time investments. In contrast, realworld image…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Jialiang Kang , Jiawen Wang , Dingsheng Luo

3D object detection is a fundamental and challenging task for 3D scene understanding, and the monocular-based methods can serve as an economical alternative to the stereo-based or LiDAR-based methods. However, accurately detecting objects…

Computer Vision and Pattern Recognition · Computer Science 2022-01-27 Zhiyu Chong , Xinzhu Ma , Hong Zhang , Yuxin Yue , Haojie Li , Zhihui Wang , Wanli Ouyang

Accurate 3D object detection in LiDAR point clouds is crucial for autonomous driving systems. To achieve state-of-the-art performance, the supervised training of detectors requires large amounts of human-annotated data, which is expensive…

Computer Vision and Pattern Recognition · Computer Science 2024-08-08 Christian Fruhwirth-Reisinger , Wei Lin , Dušan Malić , Horst Bischof , Horst Possegger

Current research is primarily dedicated to advancing the accuracy of camera-only 3D object detectors (apprentice) through the knowledge transferred from LiDAR- or multi-modal-based counterparts (expert). However, the presence of the domain…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Linyan Huang , Zhiqi Li , Chonghao Sima , Wenhai Wang , Jingdong Wang , Yu Qiao , Hongyang Li

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

Recently, Bird's-Eye-View (BEV) representation has gained increasing attention in multi-view 3D object detection, which has demonstrated promising applications in autonomous driving. Although multi-view camera systems can be deployed at low…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Jianing Li , Ming Lu , Jiaming Liu , Yandong Guo , Li Du , Shanghang Zhang

Multimodal 3D object detectors leverage the strengths of both geometry-aware LiDAR point clouds and semantically rich RGB images to enhance detection performance. However, the inherent heterogeneity between these modalities, including…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Zhuoqun Su , Huimin Lu , Shuaifeng Jiao , Junhao Xiao , Yaonan Wang , Xieyuanli Chen

The increasing intensity and frequency of floods is one of the many consequences of our changing climate. In this work, we explore ML techniques that improve the flood detection module of an operational early flood warning system. Our…

Computer Vision and Pattern Recognition · Computer Science 2023-02-17 Shubhika Garg , Ben Feinstein , Shahar Timnat , Vishal Batchu , Gideon Dror , Adi Gerzi Rosenthal , Varun Gulshan

In this paper, we propose the first self-distillation framework for general object detection, termed LGD (Label-Guided self-Distillation). Previous studies rely on a strong pretrained teacher to provide instructive knowledge that could be…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Peizhen Zhang , Zijian Kang , Tong Yang , Xiangyu Zhang , Nanning Zheng , Jian Sun

We propose the task of knowledge distillation detection, which aims to determine whether a student model has been distilled from a given teacher, under a practical setting where only the student's weights and the teacher's API are…

Machine Learning · Computer Science 2025-10-03 Qin Shi , Amber Yijia Zheng , Qifan Song , Raymond A. Yeh

In recent years, cross-modal domain adaptation has been studied on the paired 2D image and 3D LiDAR data to ease the labeling costs for 3D LiDAR semantic segmentation (3DLSS) in the target domain. However, in such a setting the paired 2D…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Yiyang Chen , Shanshan Zhao , Changxing Ding , Liyao Tang , Chaoyue Wang , Dacheng Tao

The advancement of knowledge distillation has played a crucial role in enabling the transfer of knowledge from larger teacher models to smaller and more efficient student models, and is particularly beneficial for online and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Wanli Ma , Oktay Karakus , Paul L. Rosin

Knowledge distillation is a popular technique for transferring the knowledge from a large teacher model to a smaller student model by mimicking. However, distillation by directly aligning the feature maps between teacher and student may…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Ziwei Liu , Yongtao Wang , Xiaojie Chu