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We provide classifications for all 143 million non-repeat photometric objects in the Third Data Release of the Sloan Digital Sky Survey (SDSS) using decision trees trained on 477,068 objects with SDSS spectroscopic data. We demonstrate that…

Astrophysics · Physics 2008-11-26 Nicholas M. Ball , Robert J. Brunner , Adam D. Myers , David Tcheng

Solar irradiance clustering can enhance solar power capacity planning and help improve forecasting models by identifying similar irradiance patterns influenced by seasonal and weather changes. In this study, we adopt an efficient two-level…

Machine Learning · Computer Science 2025-01-20 Roshni Agrawal , Sivakumar Subramanian , Venkataramana Runkana

Temporal action detection (TAD) is a challenging task which aims to temporally localize and recognize the human action in untrimmed videos. Current mainstream one-stage TAD approaches localize and classify action proposals relying on…

Computer Vision and Pattern Recognition · Computer Science 2021-06-30 Ranyu Ning , Can Zhang , Yuexian Zou

Multi-object Tracking (MOT) generally can be split into two sub-tasks, i.e., detection and association. Many previous methods follow the tracking by detection paradigm, which first obtain detections at each frame and then associate them…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Mingfei Chen , Yue Liao , Si Liu , Fei Wang , Jenq-Neng Hwang

With the advent of deep learning for computer vision tasks, the need for accurately labeled data in large volumes is vital for any application. The increasingly available large amounts of solar image data generated by the Solar Dynamic…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Toqi Tahamid Sarker , Juan M. Banda

As computational complexity in electromagnetics increases with frequency, full-wave solvers become computationally infeasible for electrically large problems. To address this limitation, we present a shooting and bouncing rays (SBR) method…

Computational Engineering, Finance, and Science · Computer Science 2026-04-13 Marco Pasquale , Andong Hu , Luca Pennati , Ivy Peng , Stefano Markidis

Fast Radio Burst (FRB) is an extremely energetic cosmic phenomenon of short duration. Discovered only recently and with its origin still unknown, FRBs have already started to play a significant role in studying the distribution and…

Instrumentation and Methods for Astrophysics · Physics 2025-07-31 Xuerong Guo , Han Wang , Yifan Xiao , Huaxi Chen , Yinan Ke , ChenChen Miao , Pei Wang , Di Li , Chenwu Jin , Ling He , Yi Feng , Yongkun Zhang , Jiaying Xu , Guangyong Chen

Multiobject tracking provides situational awareness that enables new applications for modern convenience, applied ocean sciences, public safety, and homeland security. In many multiobject tracking applications, including radar and sonar…

Signal Processing · Electrical Eng. & Systems 2025-04-24 Thomas Kropfreiter , Jason L. Williams , Florian Meyer

Oriented object detection is a crucial task in computer vision. Current top-down oriented detection methods usually directly detect entire objects, and not only neglecting the authentic direction of targets, but also do not fully utilise…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Beihang Song , Jing Li , Shan Xue , Jun Chang , Jia Wu , Jun Wan , Tianpeng Liu

In recent years, significant advancements have been made in deep learning-based object detection algorithms, revolutionizing basic computer vision tasks, notably in object detection, tracking, and segmentation. This paper delves into the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Kailas PS , Selvakumaran R , Palani Murugan , Ramesh Kumar , Malaya Kumar Biswal M

Point clouds and RGB images are naturally complementary modalities for 3D visual understanding - the former provides sparse but accurate locations of points on objects, while the latter contains dense color and texture information. Despite…

Computer Vision and Pattern Recognition · Computer Science 2021-07-09 Jinhyung Park , Xinshuo Weng , Yunze Man , Kris Kitani

Small object detection (SOD) has been a longstanding yet challenging task for decades, with numerous datasets and algorithms being developed. However, they mainly focus on either visible or thermal modality, while visible-thermal (RGBT)…

Computer Vision and Pattern Recognition · Computer Science 2025-02-21 Xinyi Ying , Chao Xiao , Ruojing Li , Xu He , Boyang Li , Xu Cao , Zhaoxu Li , Yingqian Wang , Mingyuan Hu , Qingyu Xu , Zaiping Lin , Miao Li , Shilin Zhou , Wei An , Weidong Sheng , Li Liu

With the human pursuit of knowledge, open-set object detection (OSOD) has been designed to identify unknown objects in a dynamic world. However, an issue with the current setting is that all the predicted unknown objects share the same…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Jiyang Zheng , Weihao Li , Jie Hong , Lars Petersson , Nick Barnes

Detecting weak target is an important and challenging problem in many applications such as radar, sonar etc. However, conventional detection methods are often ineffective in this case because of low signal-to-noise ratio (SNR). This paper…

Signal Processing · Electrical Eng. & Systems 2023-09-26 Jin Lu , Guojie Peng , Weichuan Zhang , Changming Sun

Precisely localising solar Active Regions (AR) from multi-spectral images is a challenging but important task in understanding solar activity and its influence on space weather. A main challenge comes from each modality capturing a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Majedaldein Almahasneh , Adeline Paiement , Xianghua Xie , Jean Aboudarham

One of the greatest challenges for detecting moving objects in the solar system from wide-field survey data is determining whether a signal indicates a true object or is due to some other source, like noise. Object verification has relied…

Given an object of interest, visual navigation aims to reach the object's location based on a sequence of partial observations. To this end, an agent needs to 1) learn a piece of certain knowledge about the relations of object categories in…

Computer Vision and Pattern Recognition · Computer Science 2023-12-07 Xiaobo Hu , Youfang Lin , HeHe Fan , Shuo Wang , Zhihao Wu , Kai Lv

A multiple model track-before-detect (TBD) particle filter-based approach for detection and tracking of low signal to noise ratio (SNR) objects based on a sequence of image frames in the presence of noise and clutter is briefly studied in…

Image and Video Processing · Electrical Eng. & Systems 2023-11-14 Reza Rezaie

Radio bursts from the solar corona can provide clues to forecast space weather hazards. After recent technology advancements, regular monitoring of radio bursts has increased and large observational data sets are produced. Hence, manual…

Solar and Stellar Astrophysics · Physics 2019-08-30 Dayal Singh , K. Sasikumar Raja , Prasad Subramanian , R. Ramesh , Christian Monstein

The sample of Solar system objects has dramatically increased over the last decade. The amount of measured properties (e.g., diameter, taxonomy, rotation period, thermal inertia) has grown even faster. However, this wealth of information is…

Earth and Planetary Astrophysics · Physics 2023-03-22 J. Berthier , B. Carry , M. Mahlke , J. Normand