Results 61 to 70 of about 10,716,239 (286)

Aerial moving target detection based on motion vector field analysis [PDF]

, 2007
An efficient automatic detection strategy for aerial moving targets in airborne forward-looking infrared (FLIR) imagery is presented in this paper. Airborne cameras induce a global motion over all objects in the image, that invalidates motion-based ...
Salgado Álvarez de Sotomayor, Luis, García Santos, Narciso, Jaureguizar Núñez, Fernando, Blanco Adán, Carlos Roberto del   +3 more
core  

FADet: A Frequency-Aware Detection Framework for Infrared Small Target Detection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Infrared small target detection (IRSTD) remains a critical yet highly challenging task in the field of object detection. Due to the tiny target size and the absence of rich texture information, general-purpose detectors often suffer substantial ...
Dan Feng, Jian Xu, Ke Li, Zhi Ma, Wen Li, Di Wang   +5 more
doaj   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

ISPANet: A Pyramid Self-Attention Network for Single-Frame High-Resolution Infrared Small Target Detection With a Large-Scale Dataset SHR-IRST

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In recent years, the imaging resolution of infrared detection equipment has gradually increased, and higher resolution infrared detection equipment has been used in various fields.
Wenjing Wang, Chengwang Xiao, Haofeng Dou, Ruixiang Liang, Huaibin Yuan, Guanghui Zhao, Zhiwei Chen, Yuhang Huang   +7 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Infrared small target detection based on directional zero-crossing measure

, 2017
Infrared small target detection under complex background and low signal-to-clutter ratio (SCR) condition is of great significance to the development on precision guidance and infrared surveillance. In order to detect targets precisely and extract targets
Zhang XY(张祥越), Zhang JC(张俊超), Luo HB(罗海波), Hui B(惠斌), Chang Z(常铮), Ding QH(丁庆海)   +5 more
core  

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Infrared small target detection based on bilateral filtering algorithm with similarity judgments

, 2014
Infrared small target detection is part of the key technologies in infrared precision-guided, search and track system. Resulting from the relative distance of the infrared image system and the target is far, the target becomes small, faint and obscure.
Li, Yan(李燕), Li, Yanbei
core  

An Infrared Small Target Detection Algorithm Based on Peak Aggregation and Gaussian Discrimination

IEEE Access, 2020
Due to its inherent characteristics, infrared small target detection plays an important role in the field of image detection. In order to improve the detection accuracy of small infrared targets under complex sea background, by analyzing the difference ...
Yuhang Jiang, Lili Dong, Yang Chen, Wenhai Xu   +3 more
doaj   +1 more source