Results 71 to 80 of about 121,735 (297)

An electronic pan/tilt/zoom camera system [PDF]

open access: yes
A camera system for omnidirectional image viewing applications that provides pan, tilt, zoom, and rotational orientation within a hemispherical field of view (FOV) using no moving parts was developed. The imaging device is based on the effect that from a
Martin, H. Lee, Zimmermann, Steve
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Visual Object Servo Tracking Based on the Particle Filter Method Using a Pan-Tilt-Zoom Camera

open access: yesInternational Journal of Advanced Robotic Systems, 2012
We present a servo control model in a particle filter to realize robust visual object tracking using Pan-Tilt-Zoom (PTZ) camera. The particle filter method has attracted much attention due to its robust tracking performance in cluttered environments ...
Cao Songxiao, Wang Xuanyin, Xiang Ke
doaj   +1 more source

Facilitating PTZ Camera Auto-Calibration to Be Noise Resilient With Two Images

open access: yesIEEE Access, 2019
This paper presents a simple but effective technique to calibrate a PTZ (Pan/Tilt/Zoom) camera by using only two images for five intrinsic parameters: focal length, aspect ratio, the principle point coordinates and the distortion coefficient.
Rui Wang, Ran Huang, Jiaoru Yang
doaj   +1 more source

Taking into account camera tilt when correcting a three-dimensional model of a hollow pipe during visual diagnostics with a self-propelled complex [PDF]

open access: diamond, 2020
Ekaterina Petrenko   +3 more
openalex   +1 more source

3D Bioinspired Hair‐Based Solar Evaporator for Efficient Water Harvesting

open access: yesAdvanced Functional Materials, EarlyView.
A bio‐derived solar evaporator inspired by blackbody radiation is developed using human hair waste. The vertically aligned hair structure enables broadband light absorption, efficient thermal localization, and rapid water transport, achieving high evaporation rates and stable desalination performance.
Yi Liu   +10 more
wiley   +1 more source

Measuring the flatness of focal plane for very large mosaic CCD camera

open access: yes, 2010
Large mosaic multiCCD camera is the key instrument for modern digital sky survey. DECam is an extremely red sensitive 520 Megapixel camera designed for the incoming Dark Energy Survey (DES).
Cease, Herman   +12 more
core   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

open access: yesAdvanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey   +12 more
wiley   +1 more source

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