Results 11 to 20 of about 527,536 (270)

A 0.5-V MI-OTA-based shadow universal filter with integrated passband gain compensation and low-pass control for low-frequency applications [PDF]

open access: yesScientific Reports
Ultra-low-power active filters have received increasing attention in recent years due to emerging applications such as bio-signal sensing and wearable electronic devices, where they are employed in the analog front-end to eliminate interference noise ...
Montree Kumngern   +3 more
doaj   +2 more sources

An automatic remote sensing image shadow compensation method utilizing reflectance differences and transfer learning

open access: yesGIScience and Remote Sensing
Shadows inevitably exist in remote sensing images (RSIs) and are characterized by lower resolution, mixed-pixel, and diverse background information. These characteristics pose a great challenge to the automatic compensation of shadows in RSIs. To address
Yungang Cao, Baikai Sui
exaly   +3 more sources

Illumination invariance and shadow compensation on hyperspectral images [PDF]

open access: yes, 2014
To obtain intrinsic reflectance of the scene by hyperspectral imaging systems has been a scientific and engineering challenge. Factors such as illumination variations, atmospheric effects and viewing geometries are common artefacts which modulate the way
Ibrahim, Izzati
core   +7 more sources

Adaptive Shadow Compensation for Face Recognition Under Illumination Variations

open access: yesThe Proceedings of the 4th International Conference on Industrial Application Engineering 2016, 2016
Robust face recognition under variant illumination conditions is a challenging research problem. In this paper, a new shadow compensation method, called adaptive shadow compensation (ASC), will be proposed to eliminate shadows in the face image due to non-frontal lighting directions.
Cheng-Ta Hsieh   +4 more
exaly   +3 more sources

ANISOTROPIC SCATTERING SHADOW COMPENSATION METHOD FOR REMOTE SENSING IMAGE WITH CONSIDERATION OF TERRAIN [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
With the rapid development of sensor networks and earth observation technology, a large quantity of high resolution remote sensing data is available. However, the influence of shadow has become increasingly greater due to the higher resolution shows more
Q. Wang, L. Yan
doaj   +1 more source

Role Of Financial Intermediaries in Shadow Schemes: Risk-Based Approach [PDF]

open access: yesFinancial Markets, Institutions and Risks, 2021
The article is devoted to the study of the role of financial intermediaries in the shadow sector of the economy. The main purpose of the article is to analyze and systematize the work of scientists to assess the risk of shadow transactions with the ...
Inna Tiutiunyk, Yuliia Humenna
doaj   +1 more source

A Correction Method of NDVI Topographic Shadow Effect for Rugged Terrain

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
The influence of solar altitude and azimuth angles makes shadows prevalent in remote sensing images of rugged terrains. Consequently, the normalized difference vegetation index (NDVI) of the shadow areas is much lower than that of sunlit areas—a ...
Xu Yang   +5 more
doaj   +1 more source

Improvement of Turbine Inertia Compensation in Wind Turbine Emulators using Kalman Filter [PDF]

open access: yesInternational Journal of Research and Technology in Electrical Industry, 2023
In this paper, a 3.1kW DC motor is used to simulate the static and dynamic behavior of a horizontal axis wind turbine. The effect of the difference between the wind turbine's inertia and DC motor on the dynamic behavior of the system, torque oscillation ...
Mansour Rafiee   +2 more
doaj   +1 more source

Reducing false alarm rates during change detection by modeling relief, shade and shadow of multi-temporal imagery. [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Change detection on the basis of multi-temporal imagery may lead to false alarms when the image has changed, whereas the scene has not. Geometric image differerences in an unchanged scene may be due to relief displacement, caused by diferent camera ...
B. Gorte, C. van der Sande
doaj   +1 more source

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