English
Related papers

Related papers: Estimating Sunlight Using GNSS Signal Strength fro…

200 papers

The energy transition towards photovoltaic solar energy has evolved to be a viable and sustainable source for the generation of electricity. It has effectively emerged as an alternative to the conventional mode of electricity generation for…

Image and Video Processing · Electrical Eng. & Systems 2023-01-02 Divyanshi Dwivedi , Pradeep Kumar Yemula , Mayukha Pal

We present an improved approach for constructing the UV source catalogs using observations from the UltraViolet Imaging Telescope (UVIT) onboard AstroSat, by considering the Poisson distribution of the UV background. The method is tested…

Instrumentation and Methods for Astrophysics · Physics 2025-11-19 B. Ananthamoorthy , Debbijoy Bhattacharya , P. Sreekumar , Swathi B

We estimate the UV continuum slope ($\beta$) of 465 galaxies (with luminosities of 0.028 $-$ 3.3 $L^{*}_{z=0.5}$) in the Great Observatories Origins Survey (GOODS) Northern field in the redshift range $z=0.40 - 0.75$. We use two…

Astrophysics of Galaxies · Physics 2023-04-12 Chayan Mondal , Kanak Saha , Rogier A. Windhorst , Rolf A. Jansen

Skin cancer, a major form of cancer, is a critical public health problem with 123,000 newly diagnosed melanoma cases and between 2 and 3 million non-melanoma cases worldwide each year. The leading cause of skin cancer is high exposure of…

Image and Video Processing · Electrical Eng. & Systems 2020-05-28 Saket S. Chaturvedi , Kajol Gupta , Prakash. S. Prasad

Solar energy is one of the most abundant and tapped sources of renewable energies with enormous future potential. Solar panel output can vary widely with factors like intensity, temperature, dirt, debris and so on affecting it. We have…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Abishek Karthik , Sreya Mynampati , Pandiyaraju V

We present a method to incorporate global orientation information from the sun into a visual odometry pipeline using only the existing image stream, where the sun is typically not visible. We leverage recent advances in Bayesian…

Robotics · Computer Science 2019-08-20 Valentin Peretroukhin , Lee Clement , Jonathan Kelly

Sunlight and shadow play critical roles in how urban spaces are utilized, thrive, and grow. While access to sunlight is essential to the success of urban environments, shadows can provide shaded places to stay during the hot seasons,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Kazi Shahrukh Omar , Gustavo Moreira , Daniel Hodczak , Maryam Hosseini , Nicola Colaninno , Marcos Lage , Fabio Miranda

We developed a flare prediction model using machine learning, which is optimized to predict the maximum class of flares occurring in the following 24 h. Machine learning is used to devise algorithms that can learn from and make decisions on…

Solar and Stellar Astrophysics · Physics 2017-02-01 N. Nishizuka , K. Sugiura , Y. Kubo , M. Den , S. Watari , M. Ishii

Ultraviolet (UV) imaging enables a diverse array of applications, such as material composition analysis, biological fluorescence imaging, and detecting defects in semiconductor manufacturing. However, scientific-grade UV cameras with high…

The global transition towards cleaner and more sustainable energy production is a major challenge. We present an innovative solution by utilizing smartphone light sensors to measure direct normal solar irradiance, the primary component of…

Precise Soil Moisture (SM) assessment is essential in agriculture. By understanding the level of SM, we can improve yield irrigation scheduling which significantly impacts food production and other needs of the global population. The…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Muhammad Riaz Hasib Hossain , Muhammad Ashad Kabir

Digital image plays a vital role in the early detection of cancers, such as prostate cancer, breast cancer, lungs cancer, cervical cancer. Ultrasound imaging method is also suitable for early detection of the abnormality of fetus. The…

Computer Vision and Pattern Recognition · Computer Science 2022-04-21 Vidhi Rawat , Alok Jain , Vibhakar Shrimali

The use of unmanned aerial systems (UASs) has increased tremendously in the current decade. They have significantly advanced remote sensing with the capability to deploy and image the terrain as per required spatial, spectral, temporal, and…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Yibin Wang , Wondimagegn Beshah , Padmanava Dash , Haifeng Wang

For bright transients such as Gamma-Ray Bursts (GRBs), the Ultra-Violet/Optical Telescope (UVOT) operates under event mode at early phases, which records incident positions and arrival time for each photon. The event file is able to be…

Instrumentation and Methods for Astrophysics · Physics 2025-02-18 Hao Zhou , Zhi-Ping Jin , Stefano Covino , Yi-Zhong Fan , Da-Ming Wei

In urban environments, global navigation satellite system (GNSS) positioning is often compromised by signal blockages and multipath effects caused by buildings, leading to significant positioning errors. To address this issue, this study…

Signal Processing · Electrical Eng. & Systems 2025-07-18 Sanghyun Kim , Jiwon Seo

The uncertainties associated with technology- and geography-specific degradation rates make it difficult to calculate the levelized cost of energy (LCOE), and thus the economic viability of solar energy. In this regard, millions of fielded…

Applied Physics · Physics 2018-02-06 Xingshu Sun , Raghu Vamsi Krishna Chavali , Muhammad Ashraful Alam

In order to utilize solar imagery for real-time feature identification and large-scale data science investigations of solar structures, we need maps of the Sun where phenomena, or themes, are labeled. Since solar imagers produce…

Solar and Stellar Astrophysics · Physics 2019-10-02 J. Marcus Hughes , Vicki W. Hsu , Daniel B. Seaton , Hazel M. Bain , Jonathan M. Darnel , Larisza Krista

Solar Photovoltaic (PV) is increasingly being used to address the global concern of energy security. However, hot spot and snail trails in PV modules caused mostly by crakes reduce their efficiency and power capacity. This article presents…

We developed an automated method for sunspot detection using digital white-light solar images to achieve a performance similar to that of visual drawing observations in sunspot counting. To identify down to small, isolated spots correctly,…

Solar and Stellar Astrophysics · Physics 2022-12-05 Yoichiro Hanaoka

Estimating building height from satellite imagery poses significant challenges, especially when monocular images are employed, resulting in a loss of essential 3D information during imaging. This loss of spatial depth further complicates…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Mahd Qureshi , Shayaan Chaudhry , Sana Jabba , Murtaza Taj