Results 31 to 40 of about 26,046 (295)
PhotonicsA cross-correlation algorithm to obtain the sub-aperture shifts that occur is a crucial aspect of scene-based SHWS (Shack–Hartmann wavefront sensing).
Linxiong Wen +7 more
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Fast Restoration of Aberration-Degraded Extended Object Based on Local Region Abstraction
IEEE Photonics Journal, 2018 The compensating capability of wavefront sensorless adaptive optics (WFSless AO) system for extended object images degraded by aberration is severely limited to correction speed due to largely sized images and low frame rate of camera.
Lianghua Wen +8 more
doaj +1 more source
Adaptive optics based on machine learning: a review
Opto-Electronic Advances, 2022 Adaptive optics techniques have been developed over the past half century and routinely used in large ground-based telescopes for more than 30 years. Although this technique has already been used in various applications, the basic setup and methods have ...
Youming Guo +7 more
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RMVAD-YOLO: A Robust Multi-View Aircraft Detection Model for Imbalanced and Similar Classes
Remote SensingAircraft detection technology plays a vital role in civilian applications, with significant attention being devoted to research on related algorithms in recent years.
Keda Li +5 more
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Applied Sciences, 2023 Measuring the intensity and distribution of atmospheric optical turbulence at large-aperture astronomical telescope sites is crucial to optimizing turbulence correction for different layers.
Xian Ran +7 more
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Astronomical adaptive optics: a review
PhotoniXSince the concept of adaptive optics(AO) was proposed in 1953, AO has become an indispensable technology for large aperture ground-based optical telescopes aimed at high resolution observations.
Changhui Rao +5 more
doaj +1 more source
ARSOD-YOLO: Enhancing Small Target Detection for Remote Sensing Images
SensorsRemote sensing images play a vital role in domains including environmental monitoring, agriculture, and autonomous driving. However, the detection of targets in remote sensing images remains a challenging task. This study introduces innovative methods to
Yijuan Qiu +5 more
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FEBS Letters, EarlyView.B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro +2 more
wiley +1 more source
PhotonicsThe tip–tilt mirror (TTM) is an important component of adaptive optics (AO) to achieve beam stabilization and pointing tracking. In many practical applications, the information of accurate TTM dynamics, complete system state, and noise characteristics is
Sicheng Guo +5 more
doaj +1 more source
Optimization of Virtual Shack-Hartmann Wavefront Sensing
Sensors, 2021 Virtual Shack–Hartmann wavefront sensing (vSHWS) can flexibly adjust parameters to meet different requirements without changing the system, and it is a promising means for aberration measurement.
Xian Yue +5 more
doaj +1 more source