Results 211 to 220 of about 1,349,518 (315)

Infants' visual perception without feature-binding. [PDF]

open access: yesProc Biol Sci, 2023
Tsurumi S, Kanazawa S, Yamaguchi MK.
europepmc   +1 more source

Mimicking Symmetry‐Breaking Einstein Ring by Optical Lens

open access: yesAdvanced Photonics Research, EarlyView.
This article uses an optical lens to emulate the gravitational lensing effect and observe the Einstein ring (ER) patterns. The symmetry‐breaking ER, i.e., Einstein cross, is observed utilizing a rotation‐symmetry‐breaking hemi‐ellipsoid lens. Deformed Einstein cross patterns induced by noncollinearly alignment of the light source–lens–observer are ...
Jun‐Liang Duan   +5 more
wiley   +1 more source

Dynamic Target Tracking of Unmanned Aerial Vehicles Under Unpredictable Disturbances

open access: yesEngineering
This study proposes an image-based visual servoing (IBVS) method based on a velocity observer for an unmanned aerial vehicle (UAV) for tracking a dynamic target in Global Positioning System (GPS)-denied environments.
Yanjie Chen   +6 more
doaj  

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

open access: yesAdvanced Photonics Research, EarlyView.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu   +5 more
wiley   +1 more source

Optimizing Single‐Cell Measurement Using Dynamic Atomic Force Microscopy

open access: yesAdvanced Photonics Research, EarlyView.
This study optimizes optical detection sensitivity in atomic force microscopy for high‐frequency single‐cell imaging in liquid environments. By analyzing laser positioning on microcantilevers, it enhances measurement accuracy and image resolution. Advanced image analysis techniques assess quality, offering guidelines for high‐resolution imaging of ...
Indrianita Lionadi   +4 more
wiley   +1 more source

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