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This study proposes an analytical Delta-V approximation of short-time transfers based on the linear relative motion and a gradient-based nonlinear programming model of multi-target rendezvous and flyby trajectories. In previous studies, the…

Earth and Planetary Astrophysics · Physics 2024-06-12 An-Yi Huang , Heng-Nian Li , Ya-Zhong Luo

This letter presents a novel method for estimating the position, velocity, and acceleration of a moving target using range-based measurements. Although most existing studies focus on position and velocity estimation, the framework of this…

Signal Processing · Electrical Eng. & Systems 2025-10-07 Mohammad Salman , Hadi Zayyani , Hasan Abu Hilal , Mostafa Rashdan

Large-scale pre-trained models have achieved remarkable success in various computer vision tasks. A standard approach to leverage these models is to fine-tune all model parameters for downstream tasks, which poses challenges in terms of…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Yi Xin , Junlong Du , Qiang Wang , Zhiwen Lin , Ke Yan

A near-field motion parameter estimation method is proposed. In contract to far-field sensing systems, the near-field sensing system leverages spherical-wave characteristics to enable full-vector location and velocity estimation. Despite…

Signal Processing · Electrical Eng. & Systems 2025-07-18 Chunwei Meng , Zhaolin Wang , Zhiqing Wei , Yuanwei Liu , Zhiyong Feng

The problem of estimating the parameters of a moving target in multiple-input multiple-output (MIMO) radar is considered and a new approach for estimating the moving target parameters by making use of the phase information associated with…

Information Theory · Computer Science 2015-06-04 Aboulnasr Hassanien , Sergiy A. Vorobyov , Alex B. Gershman

Interactive segmentation aims to extract objects of interest from an image based on user-provided clicks. In real-world applications, there is often a need to segment a series of images featuring the same target object. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Senlin Cheng , Haopeng Sun

The Polar Mellin Transform (PMT) is a well-known technique that converts images into shift, scale and rotation invariant signatures for object detection using opto-electronic correlators. However, this technique cannot be properly applied…

Image and Video Processing · Electrical Eng. & Systems 2025-03-19 Xi Shen , Julian Gamboa , Tabassom Hamidfar , Shamima Mitu , Selim M. Shahriar

Deep convolutional neural networks (DCNNs) based remote sensing (RS) image semantic segmentation technology has achieved great success used in many real-world applications such as geographic element analysis. However, strong dependency on…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Qi Zhao , Shuchang Lyu , Binghao Liu , Lijiang Chen , Hongbo Zhao

We study deep learning approaches to inferring numerical coordinates for points of interest in an input image. Existing convolutional neural network-based solutions to this problem either take a heatmap matching approach or regress to…

Computer Vision and Pattern Recognition · Computer Science 2018-05-07 Aiden Nibali , Zhen He , Stuart Morgan , Luke Prendergast

Land surface temperature (LST) is a critical parameter for characterizing surface energy balance and hydrothermal processes. While Landsat provides invaluable LST observations at medium spatial resolution for over 40 years, its native…

Atmospheric and Oceanic Physics · Physics 2026-04-01 Huanfeng Shen , Chan Li , Menghui Jiang , Penghai Wu , Guanhao Zhang , Tian Xie

We consider distributed optimization over networks where each agent is associated with a smooth and strongly convex local objective function. We assume that the agents only have access to unbiased estimators of the gradient of their…

Optimization and Control · Mathematics 2021-10-14 Farzad Yousefian , Jayesh Yevale , Harshal D. Kaushik

Accurate radio-frequency (RF) material parameters are essential for electromagnetic digital twins in 6G systems, yet gradient-based inverse ray tracing (RT) remains sensitive to initialization and costly under limited measurements. This…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Zerui Kang , Yishen Lim , Zhouyou Gu , Seung-Woo Ko , Tony Q. S. Quek , Jihong Park

Natural Language Video Grounding (NLVG) aims to localize time segments in an untrimmed video according to sentence queries. In this work, we present a new paradigm named Explore-And-Match for NLVG that seamlessly unifies the strengths of…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Sangmin Woo , Jinyoung Park , Inyong Koo , Sumin Lee , Minki Jeong , Changick Kim

In recent years, machine learning (ML) algorithms have become widespread in all the fields of remote sensing (RS) and earth observation (EO). This has allowed the rapid development of new procedures to solve problems affecting these…

Artificial Intelligence · Computer Science 2024-10-28 Alessandro Sebastianelli , Maria Pia Del Rosso , Silvia Liberata Ullo , Paolo Gamba

High dynamic range (HDR) imaging aims to retrieve information from multiple low-dynamic range inputs to generate realistic output. The essence is to leverage the contextual information, including both dynamic and static semantics, for…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Steven Tel , Zongwei Wu , Yulun Zhang , Barthélémy Heyrman , Cédric Demonceaux , Radu Timofte , Dominique Ginhac

Polarimetric synthetic aperture radar (PolSAR) image segmentation is currently of great importance in image processing for remote sensing applications. However, it is a challenging task due to two main reasons. Firstly, the label…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Haixia Bi , Lin Xu , Xiangyong Cao , Yong Xue , Zongben Xu

We propose a Dynamic Scale Training paradigm (abbreviated as DST) to mitigate scale variation challenge in object detection. Previous strategies like image pyramid, multi-scale training, and their variants are aiming at preparing…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Yukang Chen , Peizhen Zhang , Zeming Li , Yanwei Li , Xiangyu Zhang , Lu Qi , Jian Sun , Jiaya Jia

Capturing and preserving motion semantics is essential to motion retargeting between animation characters. However, most of the previous works neglect the semantic information or rely on human-designed joint-level representations. Here, we…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Haodong Zhang , ZhiKe Chen , Haocheng Xu , Lei Hao , Xiaofei Wu , Songcen Xu , Zhensong Zhang , Yue Wang , Rong Xiong

Embedding tables are usually huge in click-through rate (CTR) prediction models. To train and deploy the CTR models efficiently and economically, it is necessary to compress their embedding tables at the training stage. To this end, we…

Machine Learning · Computer Science 2024-08-07 Shiwei Li , Huifeng Guo , Lu Hou , Wei Zhang , Xing Tang , Ruiming Tang , Rui Zhang , Ruixuan Li

Deep learning-based semantic segmentation models achieve impressive results yet remain limited in handling distribution shifts between training and test data. In this paper, we present SDGPA (Synthetic Data Generation and Progressive…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Jun Luo , Zijing Zhao , Yang Liu