what is fluid lensing

Fluid Lensing and Applications to Remote Sensing of

Fluid lensing data are captured from low-altitude cost-effective electric UAVs to achieve multispectral imagery and bathymetry models at the centimetre scale over regional areas As a passive system fluid lensing is presently limited by signal-to-noise ratio and water column inherent optical properties to approximately 10 m depth over visible wavelengths in clear waters The datasets derived

vedphoto

Welcome to the vedphoto blog! Here you can keep up-to-date on research (Fluid Lensing) exhibitions (Physics In Vogue and Reactive Reefs) and photo-shoots Learn about the techniques and stories behind my images by searching for a location or keyword That picture of fruit bats from Northern Madagascar - I had to wade waist-high in bat guano to get it! Always a humbling experience

+ FLUID LENSING REMOTE SENSING

16 07 2015Fluid Lensing works to image underwater objects in visible wavelengths by exploiting time-varying optical lensing events caused by refractive distortions from travelling surface waves over the ocean Fluid-lensed processed images can be effectively used for accurate 3D reconstruction using structure from motion and typically exceed diffraction-limited performance depending on the setup

Blind Wave Field Characterization from Fluid Lensing

Blind Wave Field Characterization from Fluid Lensing! EE368 Final Project Proposal !! Ved Chirayath Oscar Galvan-Lopez Ronnie Instrella! vedstanford edu ogalvanstanford edu! rinstrestanford edu! Abstract!! Fluid Lensing is a theoretical model (Chirayath et al 1) for fluid-optical interactions in turbulent flows as well as two-fluid surface boundaries that when coupled with

ESTF2014 Abstracts

Fluid Lensing is a theoretical model and algorithm I present for fluid-optical interactions in turbulent flows as well as two-fluid surface boundaries that when coupled with an unique computer vision and image-processing pipeline may be used to significantly enhance the angular resolution of a remote sensing optical system with applicability to high-resolution stereographic imaging of

NASA Fluid Lensing the Ocean Floor

NASA Fluid Cam NASA has developed a special camera called the "Fluid Cam " It uses fluid lensing technology that can see and capture pictures clearly through ocean waves Fluid lensing calculates and removes the optical distortions caused by waves at the surface of the water Therefore it allows the Fluid Cam to capture clear sharp photos that look as though they were captured from below the surface

NASA Fluid Lensing MiDAR: Next

Fluid Lensing is the first remote sensing technology capable of imaging through ocean waves in 3D at sub-cm resolutions MiDAR is a next-generation active hyperspectral remote sensing and optical communications instrument capable of active fluid lensing Fluid Lensing has been used to provide 3D multispectral imagery of shallow marine systems from unmanned aerial vehicles (UAVs or drones

What is fluid lensing

What is fluid lensing Friday 17 April 2020 (2 weeks ago) Moffett Field CA (SPX) Apr 10 2020 Whenever you look through a substance whether it's the water in a pool or a pane of old rippled glass the objects you see look distorted For centuries astronomers have been mapping the sky through the distortions caused by our atmosphere however in recent years they've developed techniques to

Environmental News Network

Researchers at NASA's Ames Research Center in California's Silicon Valley are focused on solving this problem with fluid lensing a technique for imaging through the ocean's surface While we've mapped the surfaces of the Moon and Mars in great detail only 4% of the ocean floor is currently mapped Getting accurate depth measurements and clear images is difficult in part due to how

vedphoto

Fluid Lensing is a theoretical model and algorithm I am developing for fluid-optical interactions in turbulent flows as well as two-fluid surface boundaries that when coupled with computational imaging and an unique computer vision processing pipeline may be used to not only remove strong optical distortions along the line of sight (below right further details of test) but also significantly enhance the angular

Lensing

lens [lenz] 1 a piece of glass or other transparent material so shaped as to converge or scatter light rays See also glasses 2 the transparent biconvex body separating the posterior chamber and the vitreous body of the eye it refracts (bends) light rays so that they are focused on the retina Called also crystalline lens In order for the eye to

Fluid lensing and machine learning for centimeter

Fluid lensing and machine learning for centimeter-resolution airborne assessment of coral reefs in American Samoa The optical interaction of light with fluids is a complex phenomenon impacting the remote sensing of more than 71% of Earth's surface As of 2019 the authors know of only one global and localized refraction-corrected remote sensing imaging technology airborne fluid lensing

FluidCam 1amp 2

We present NASA ESTO FluidCam 1 2 Visible and NIR Fluid-Lensing-enabled imaging payloads for Unmanned Aerial Vehicles (UAVs) Developed as part of a focused 2014 earth science technology grant FluidCam 12 are Fluid-Lensing-based computational optical imagers designed for automated 3D mapping and remote sensing of underwater coastal targets from airborne platforms

Fluid Lensing Applications to Remote Sensing of

These findings suggest fluid lensing and multirotor electric drones represent a promising advance in the remote sensing of aquatic environments at the centimetre scale or 'reef scale' relevant to the conservation of reef ecosystems Pending further development and validation of fluid lensing methods these technologies present a solution for large-scale 3D surveys of shallow aquatic habitats with

Lensing

lens [lenz] 1 a piece of glass or other transparent material so shaped as to converge or scatter light rays See also glasses 2 the transparent biconvex body separating the posterior chamber and the vitreous body of the eye it refracts (bends) light rays so that they are focused on the retina Called also crystalline lens In order for the eye to

NASA Fluid Lensing MiDAR: Next

Fluid Lensing is the first remote sensing technology capable of imaging through ocean waves in 3D at sub-cm resolutions MiDAR is a next-generation active hyperspectral remote sensing and optical communications instrument capable of active fluid lensing Fluid Lensing has been used to provide 3D multispectral imagery of shallow marine systems from unmanned aerial vehicles (UAVs or drones

Fluid Lensing Applications to Remote Sensing of

Fluid lensing is an experimental technology that uses water transmitting wavelengths to passively image underwater objects at high-resolution by exploiting time-varying optical lensing events caused by surface waves Fluid lensing data are captured from low-altitude cost-effective electric UAVs to achieve multispectral imagery and bathymetry models at the centimetre scale over regional areas

SILICONE FLUIDS

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What is Fluid Lensing?

With fluid lensing technology the ability to track changes to coral reefs around the world is within reach A sunrise on the Nautilus the virtual research vessel in the NeMO-Net game From the ship's deck players can go on dives check for messages with new missions track progress and more

+ FLUID LENSING REMOTE SENSING

16 07 2015Fluid Lensing works to image underwater objects in visible wavelengths by exploiting time-varying optical lensing events caused by refractive distortions from travelling surface waves over the ocean Fluid-lensed processed images can be effectively used for accurate 3D reconstruction using structure from motion and typically exceed diffraction-limited performance depending on the setup

NASA Fluid Lensing MiDAR: Next

Fluid Lensing is the first remote sensing technology capable of imaging through ocean waves in 3D at sub-cm resolutions MiDAR is a next-generation active hyperspectral remote sensing and optical communications instrument capable of active fluid lensing Fluid Lensing has been used to provide 3D multispectral imagery of shallow marine systems from unmanned aerial vehicles (UAVs or drones

Fluid lensing and machine learning for centimeter

In 2013 a drone-based airborne fluid lensing campaign conducted over the coral reef of Ofu Island American Samoa revealed complex 3D morphological ecological and bathymetric diversity at the cm-scale over a regional area In this paper we develop and validate supervised machine learning algorithm products tailored for accurate automated segmentation of coral reefs using airborne fluid

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