Results 171 to 180 of about 82,170 (356)
Sensing Dog Brain Reactions to Smell by AI Speckle Pattern Analysis
Journal of Biophotonics, EarlyView.The setup of our experiment is shown on Labrador, Johny, a canine participant of our research. The schematic of the setup features: green laser, digital camera, source of smell, and computer. Regions of the brain that were tested are highlighted. Note that the hippocampus and amygdala are on both sides of the dog's brain.
Ilana Propp +5 more
wiley +1 more source
Breaking Boundaries: A Universal Wavefront Reconstruction Approach for High-resolution Solar Imaging
The Astrophysical Journal LettersThis Letter proposes a universal wavefront reconstruction approach based on a coupled data set and neural network, aiming to overcome the limitations of current algorithms in terms of universality and wavefront sensing accuracy for variable imaging ...
Xinlan Ge +6 more
doaj +1 more source
Single-Shot Wavefront Sensing in Focal Plane Imaging Using Transformer Networks
OpticsWavefront sensing is an essential technique in optical imaging, adaptive optics, and atmospheric turbulence correction. Traditional wavefront reconstruction methods, including the Gerchberg–Saxton (GS) algorithm and phase diversity (PD) techniques, are ...
Hangning Kou +6 more
doaj +1 more source
Depth‐enhanced light field camera system based on focus‐tunable geometric phase lens module
Journal of the Society for Information Display, EarlyView.We propose a GPL‐based LF camera that significantly extends the depth range over passive optics. During elemental image acquisition and LF rendering, chromatic aberration is compensated by adjusting reconstruction depth and magnification per color channel, with optimized GPL operations considering color‐dependent depth of focus.
Hyeon‐Su Jeong +8 more
wiley +1 more source
Light: Science & ApplicationsShack–Hartmann wavefront sensors measure the local slopes of an incoming wavefront based on the displacement of focal spots created by a lenslet array, serving as key components for adaptive optics for astronomical and biomedical imaging.
Gi-Hyun Go +5 more
doaj +1 more source
Journal of the Society for Information Display, EarlyView.By using cholesteric liquid crystals as circular polarization filters in quarter‐waveplate condition GPL (QW‐GPL) based SIDH, a stable circular polarization state is ensured, which reduces color distortion and polarization noise, thereby significantly enhancing the reconstructed image quality in full‐color QW‐GPL‐based SIDH.
Jin‐Hyeok Seo +9 more
wiley +1 more source
High‐resolution in vivo monophasic gastric slow waves to quantify activation and recovery profiles
Neurogastroenterology &Motility, Volume 34, Issue 12, December 2022., 2022 A novel high‐resolution multi‐channel suction electrode array was developed and applied in vivo to record monophasic gastric slow waves. Spatiotemporal slow wave recovery phase analysis was more reliably performed on monophasic signals compared with the biphasic signals, owing to the defined recovery morphology.
Henry Han +2 more
wiley +1 more source
Coherence Awareness in Diffractive Neural Networks
Laser &Photonics Reviews, EarlyView.It is demonstrated that spatial coherence significantly impacts all‐optical diffractive neural networks, unlike imaging systems. A general framework is proposed for training diffractive networks for any specified degree of spatial and temporal coherence. Coherence‐blind networks are further introduced, which are resilient to illumination changes. These
Matan Kleiner +2 more
wiley +1 more source
Wavefront Refraction and Correction [PDF]
Optometry and Vision Science, 2014 Adrian S. Bruce +8 more
openaire +2 more sources