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Single-photon Lidar (SPL) offers unprecedented sensitivity and time resolution, which enables Satellite Laser Ranging (SLR) systems to identify space debris from distances spanning thousands of kilometers. However, existing SPL systems face…

Data Analysis, Statistics and Probability · Physics 2024-01-10 Xialin Liu , Jia Qiang , Genghua Huang , Liang Zhang , Zheng Zhao , Rong Shu

We present RangeRCNN, a novel and effective 3D object detection framework based on the range image representation. Most existing methods are voxel-based or point-based. Though several optimizations have been introduced to ease the sparsity…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Zhidong Liang , Ming Zhang , Zehan Zhang , Xian Zhao , Shiliang Pu

Large imbalance often exists between the foreground points (i.e., objects) and the background points in outdoor LiDAR point clouds. It hinders cutting-edge detectors from focusing on informative areas to produce accurate 3D object detection…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Peng Wu , Lipeng Gu , Xuefeng Yan , Haoran Xie , Fu Lee Wang , Gary Cheng , Mingqiang Wei

In this paper, a novel framework of sparse kernel learning for Support Vector Data Description (SVDD) based anomaly detection is presented. In this work, optimal sparse feature selection for anomaly detection is first modeled as a Mixed…

Machine Learning · Computer Science 2015-06-09 Zhimin Peng , Prudhvi Gurram , Heesung Kwon , Wotao Yin

Inspired by the UNet architecture of semantic image segmentation, we propose a lightweight UNet using depthwise separable convolutions (DSUNet) for end-to-end learning of lane detection and path prediction (PP) in autonomous driving. We…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Der-Hau Lee , Jinn-Liang Liu

Unmanned Aerial Vehicles (drones) are emerging as a promising technology for both environmental and infrastructure monitoring, with broad use in a plethora of applications. Many such applications require the use of computer vision…

Computer Vision and Pattern Recognition · Computer Science 2018-07-19 Christos Kyrkou , George Plastiras , Stylianos Venieris , Theocharis Theocharides , Christos-Savvas Bouganis

Deploying deep Convolutional Neural Networks (CNNs) is impacted by their memory footprint and speed requirements, which mainly come from convolution. Widely-used convolution algorithms, im2col and MEC, produce a lowered matrix from an…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Hossam Amer , Ahmed H. Salamah , Ahmad Sajedi , En-hui Yang

Object detection on drone images with low-latency is an important but challenging task on the resource-constrained unmanned aerial vehicle (UAV) platform. This paper investigates optimizing the detection head based on the sparse…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Bowei Du , Yecheng Huang , Jiaxin Chen , Di Huang

Grid maps are widely used in robotics to represent obstacles in the environment and differentiating dynamic objects from static infrastructure is essential for many practical applications. In this work, we present a methods that uses a deep…

Computer Vision and Pattern Recognition · Computer Science 2017-09-12 Florian Piewak , Timo Rehfeld , Michael Weber , J. Marius Zöllner

3D object detectors usually rely on hand-crafted proxies, e.g., anchors or centers, and translate well-studied 2D frameworks to 3D. Thus, sparse voxel features need to be densified and processed by dense prediction heads, which inevitably…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Yukang Chen , Jianhui Liu , Xiangyu Zhang , Xiaojuan Qi , Jiaya Jia

Historically, the pursuit of efficient inference has been one of the driving forces behind research into new deep learning architectures and building blocks. Some recent examples include: the squeeze-and-excitation module, depthwise…

Computer Vision and Pattern Recognition · Computer Science 2019-11-25 Erich Elsen , Marat Dukhan , Trevor Gale , Karen Simonyan

Recent advance in 2D CNNs has revealed that large kernels are important. However, when directly applying large convolutional kernels in 3D CNNs, severe difficulties are met, where those successful module designs in 2D become surprisingly…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Yukang Chen , Jianhui Liu , Xiangyu Zhang , Xiaojuan Qi , Jiaya Jia

The high demand for computational and storage resources severely impede the deployment of deep convolutional neural networks (CNNs) in limited-resource devices. Recent CNN architectures have proposed reduced complexity versions (e.g.…

Computer Vision and Pattern Recognition · Computer Science 2019-10-17 Souvik Kundu , Saurav Prakash , Haleh Akrami , Peter A. Beerel , Keith M. Chugg

Object detection is a challenging task in visual understanding domain, and even more so if the supervision is to be weak. Recently, few efforts to handle the task without expensive human annotations is established by promising deep neural…

Computer Vision and Pattern Recognition · Computer Science 2016-11-28 Ali Diba , Vivek Sharma , Ali Pazandeh , Hamed Pirsiavash , Luc Van Gool

Object detection is essential to safe autonomous or assisted driving. Previous works usually utilize RGB images or LiDAR point clouds to identify and localize multiple objects in self-driving. However, cameras tend to fail in bad driving…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Zangwei Zheng , Xiangyu Yue , Kurt Keutzer , Alberto Sangiovanni Vincentelli

For vehicles equipped with the automatic parking system, the accuracy and speed of the parking slot detection are crucial. But the high accuracy is obtained at the price of low speed or expensive computation equipment, which are sensitive…

Computer Vision and Pattern Recognition · Computer Science 2020-05-20 Zhuoping Yu , Zhong Gao , Hansheng Chen , Yuyao Huang

Object detection in challenging situations such as scale variation, occlusion, and truncation depends not only on feature details but also on contextual information. Most previous networks emphasize too much on detailed feature extraction…

Computer Vision and Pattern Recognition · Computer Science 2018-09-07 Wenchi Ma , Yuanwei Wu , Zongbo Wang , Guanghui Wang

Space-time adaptive processing (STAP) algorithms with coprime arrays can provide good clutter suppression potential with low cost in airborne radar systems as compared with their uniform linear arrays counterparts. However, the performance…

Signal Processing · Electrical Eng. & Systems 2020-01-07 X. Wang , Z. Yang , J. Huang , R. C. de Lamare

System identification techniques -- projection pursuit regression models (PPRs) and convolutional neural networks (CNNs) -- provide state-of-the-art performance in predicting visual cortical neurons' responses to arbitrary input stimuli.…

Quantitative Methods · Quantitative Biology 2021-10-04 Ziniu Wu , Harold Rockwell , Yimeng Zhang , Shiming Tang , Tai Sing Lee

Infrared small target detection plays a vital role in remote sensing, industrial monitoring, and various civilian applications. Despite recent progress powered by deep learning, many end-to-end convolutional models tend to pursue…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Zihao Xiong , Fei Zhou , Fengyi Wu , Shuai Yuan , Maixia Fu , Zhenming Peng , Jian Yang , Yimian Dai
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