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Despite the promising results, existing oriented object detection methods usually involve heuristically designed rules, e.g., RRoI generation, rotated NMS. In this paper, we propose an end-to-end framework for oriented object detection,…

计算机视觉与模式识别 · 计算机科学 2023-03-02 Qiang Zhou , Chaohui Yu , Zhibin Wang , Fan Wang

In this study, we consider a pulse-Doppler radar relying on a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) for scanning a given volume; the radar receiver is collocated with the STAR-RIS and aims…

信号处理 · 电气工程与系统科学 2024-12-30 Emanuele Grossi , Hedieh Taremizadeh , Luca Venturino

Recently, there has been an increasing interest in 6G technology for integrated sensing and communications, where positioning stands out as a key application. In the realm of 6G, cell-free massive multiple-input multiple-output (MIMO)…

信号处理 · 电气工程与系统科学 2025-05-05 Manish Kumar , Tzu-Hsuan Chou , Byunghyun Lee , Nicolo Michelusi , David J. Love , James V. Krogmeier

Autonomous radar has been an integral part of advanced driver assistance systems due to its robustness to adverse weather and various lighting conditions. Conventional automotive radars use digital signal processing (DSP) algorithms to…

计算机视觉与模式识别 · 计算机科学 2020-04-21 Xu Dong , Pengluo Wang , Pengyue Zhang , Langechuan Liu

Astrometric measurements are significantly challenged by the relative motion between the point source and the telescope, primarily due to the difficulty in accurately determining the position of the point source at the mid-exposure moment.…

天体物理仪器与方法 · 物理学 2025-03-11 Linpeng Wu , Qingfeng Zhang , Valéry Lainey , Nick Cooper , Nicolas Rambaux , Weiheng Zhu

Based on two-photon entanglement, quantum remote sensing enables the measurement and detection to be done non-locally and remotely. However, little attention has been paid to implement a noncontact way to sense a real objects angular…

光学 · 物理学 2019-10-30 Wuhong Zhang , Dongkai Zhang , Xiaodong Qiu , Lixiang Chen

We introduce RotateIt, a system that enables fingertip-based object rotation along multiple axes by leveraging multimodal sensory inputs. Our system is trained in simulation, where it has access to ground-truth object shapes and physical…

机器人学 · 计算机科学 2023-09-29 Haozhi Qi , Brent Yi , Sudharshan Suresh , Mike Lambeta , Yi Ma , Roberto Calandra , Jitendra Malik

Multi-path sensing, which aims to extract the geometric attributes of multiple propagation paths, is expected to be a key functionality of 6G. A movable antenna (MA) can enable this functionality by creating a synthetic aperture through…

信息论 · 计算机科学 2026-04-14 Jaehong Kim , Jihong Park , Changsheng You , Seung-Woo Ko

Detecting oriented objects along with estimating their rotation information is one crucial step for analyzing remote sensing images. Despite that many methods proposed recently have achieved remarkable performance, most of them directly…

计算机视觉与模式识别 · 计算机科学 2021-12-02 Yanjie Wang , Xu Zou , Zhijun Zhang , Wenhui Xu , Liqun Chen , Sheng Zhong , Luxin Yan , Guodong Wang

This paper proposes a novel maximum Doppler spread estimation algorithm for OFDM systems with the comb-type pilot pattern. By tracking the drifting delay subspace of the multipath channel, the time correlation function is measured at a high…

信息论 · 计算机科学 2008-11-05 Xiaochuan Zhao , Tao Peng , Ming Yang , Wenbo Wang

Hand detection is essential for many hand related tasks, e.g. parsing hand pose, understanding gesture, which are extremely useful for robotics and human-computer interaction. However, hand detection in uncontrolled environments is…

计算机视觉与模式识别 · 计算机科学 2016-12-09 Xiaoming Deng , Ye Yuan , Yinda Zhang , Ping Tan , Liang Chang , Shuo Yang , Hongan Wang

In urban areas, global navigation satellite system (GNSS) signals are often reflected or blocked by buildings, thus resulting in large positioning errors. In this study, we proposed a machine learning approach for global positioning system…

网络与互联网体系结构 · 计算机科学 2022-08-10 Sanghyun Kim , Jungyun Byun , Kwansik Park

Monocular cameras coupled with inertial measurements generally give high performance visual inertial odometry. However, drift can be significant with long trajectories, especially when the environment is visually challenging. In this paper,…

机器人学 · 计算机科学 2020-06-02 Yanjun Cao , Giovanni Beltrame

Angular differential imaging (ADI) (Marois et al. 2006) is an observational technique in high contrast imaging where the telescope is used in pupil tracking mode so that the image of the sky rotates with respect to the optical surfaces.…

地球与行星天体物理 · 物理学 2017-11-28 Michael Bottom , Garreth Ruane , Dimitri Mawet

Fingerprints are widely recognized as one of the most unique and reliable characteristics of human identity. Most modern fingerprint authentication systems rely on contact-based fingerprints, which require the use of fingerprint scanners or…

计算机视觉与模式识别 · 计算机科学 2023-11-28 M. G. Sarwar Murshed , Syed Konain Abbas , Sandip Purnapatra , Daqing Hou , Faraz Hussain

Oriented object detection has been developed rapidly in the past few years, where rotation equivariance is crucial for detectors to predict rotated boxes. It is expected that the prediction can maintain the corresponding rotation when…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Hang Xu , Xinyuan Liu , Haonan Xu , Yike Ma , Zunjie Zhu , Chenggang Yan , Feng Dai

This work presents numerical results of a computer simulation performed with six centroiding algorithms targeting a star tracker in development at INPE, including readout noise and considering a Gaussian point spread function. Five of the…

天体物理仪器与方法 · 物理学 2025-07-24 Marcio Afonso Arimura Fialho

This paper presents a robust probabilistic point registration method for estimating the rigid transformation (i.e. rotation matrix and translation vector) between two pointcloud dataset. The method improves the robustness of point…

计算机视觉与模式识别 · 计算机科学 2019-12-12 Saman Fahandezh-Saadi , Di Wang , Masayoshi Tomizuka

Bearing--only estimation is one of the fundamental and challenging problems in target tracking. As in the case of radar tracking, the presence of offset or position biases can exacerbate the challenges in bearing--only estimation. Modeling…

统计方法学 · 统计学 2016-03-23 Ehsan Taghavi , R. Tharmarasa , T. Kirubarajan , Mike McDonald

We propose a novel angular velocity estimation method to increase the robustness of Simultaneous Localization And Mapping (SLAM) algorithms against gyroscope saturations induced by aggressive motions. Field robotics expose robots to various…