- published: 24 Nov 2014
- views: 129954
Lidar (also written LIDAR, LiDAR or LADAR) is a surveying technology that measures distance by illuminating a target with a laser light. Although thought by some to be an acronym of Light Detection And Ranging, the term lidar was actually created as a portmanteau of "light" and "radar". Lidar is popularly used as a technology to make high-resolution maps, with applications in geodesy, geomatics, archaeology, geography, geology, geomorphology, seismology, forestry, atmospheric physics, airborne laser swath mapping (ALSM) and laser altimetry. What is known as Lidar is sometimes simply referred to as laser scanning or 3D scanning, with terrestrial, airborne and mobile applications.
Lidar originated in the early 1960s, shortly after the invention of the laser, and combined laser-focused imaging with radar's ability to calculate distances by measuring the time for a signal to return. Its first applications came in meteorology, where the National Center for Atmospheric Research used it to measure clouds. The general public became aware of the accuracy and usefulness of lidar systems in 1971 during the Apollo 15 mission, when astronauts used a laser altimeter to map the surface of the moon.
This NEON Science video overviews what lidar or light detection and ranging is, how it works and what types of information it can provide. The video was produced by the National Ecological Observatory Network - a non profit project devoted to open science and open data.
Integrated data from Velodyne 64HD lidar and 5 SICK lidars using a Oxford Technical Solutions GPS package. Data was taken around 2007, during preparation to the DARPA Urban Challenge Competition.
Director of Remote Sensing Amar Nayegandhi explains the science and technology behind Light Detection and Ranging (LiDAR) services. Transcription: LiDAR can be considered an acronym for Light Detection and Ranging. It is a remote sensing technology that's used to measure distances, and it doesn't act on its own. It actually -- LIDAR typically includes three independently operating technologies. There's LiDAR, which is essentially a giant laser ranging device. The laser-ranging device sends out millions of pulses. Today, they can send out over 400,000 pulses in one second. That technology gives you the distance or the range to the target and there are two other technologies: GPS, which is Global Positioning System, or global navigations systems, that give you the location of the instrument...
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Demonstration of a 3D scanner using an Arduino and a Garmin LIDAR-Lite 3. More info: http://www.qcontinuum.org/lidar
Explanation of how police lidar guns measure and calculate the speed of a moving vehicle. How Police Radar Guns Work: https://youtu.be/DAwW7_nYG0c Website: http://www.VortexRadar.com Facebook: https://www.facebook.com/VortexRadar/ Twitter: https://twitter.com/VortexRadar Instagram: https://www.instagram.com/vortexradar/ Donate: I now gratefully accept donations :) https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted;_button_id=3WTNXB2E687RG © 2016 Vortex Radar. All rights reserved.
This short video explains how a MEMS-based LiDAR works, from the LeddarCore integrated circuit to the optics configuration. Demoed for the first time at CES 2017 by LeddarTech, the solid-state scanning LiDAR is a high-resolution, long-range 3D solution for automotive applications (ADAS / autonomous driving). Learn more here: www.leddartech.com
"Solid State LiDAR for Autonomous Vehicles, Security, Industrial Automation, and 3D Mapping" - Louay Eldada of Quanergy Support for the Stanford Colloquium on Computer Systems Seminar Series provided by the Stanford Computer Forum. Speaker Abstract and Bio can be found here: http://ee380.stanford.edu/Abstracts/160330.html Colloquium on Computer Systems Seminar Series (EE380) presents the current research in design, implementation, analysis, and use of computer systems. Topics range from integrated circuits to operating systems and programming languages. It is free and open to the public, with new lectures each week. Learn more: http://bit.ly/WinYX5
This video is an overview of the Phoenix Aerial AL3-16 LiDAR Mapping system. The AL3-16 can be mounted on any UAV that can lift 2.5kgs. In this video, a DJI S1000 is used and for the demonstration, we flew over an over an open pit. You can see how quickly we generate a dense pointcloud. You'll also see how LiDAR can pick up points underneath vegetation vs Photogrammetry will only map tree canopy.
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(Will you stand by me in a stand by World?
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Hello, hey now
The Fonz is cool, Fonzy don't cry
Hello, hey now
Well ask Mr. T, he's a really nice guy
There we go with a sign of a smile
Slap in the Ferris, we're cool for a while
They sit like a diamond inside of me
In one
A portable vacuum
In two
A mini-bar
In three
A holiday weekend
In four a Jaguar
In five
A soda stream machine
In six
A Betamax
In seven
A Remington shaver
Once you try it you'll never go back
Well look at me
Look at me
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Look at me
About to fall apart
Yes I'm even empty-handed with my bulls-eye dart
Taking it back to summer of '85
Piggyback fights I was so
Alive
Will I find
Boba Fett?
And maybe my old Lego playset
Ip dip dog shit
You're on my friend
Cos you trod in it
Turkey Lurkey one, two, three
Tic off ground and it's home for tea
In one
A portable vacuum
In two
A mini-bar
In three
A holiday weekend
In four a Jaguar
In five
A soda stream machine
In six
A Betamax
In seven
A Remington shaver
Once you try it you'll never go back
Well look at me
Look at me
Look at me
Look at me
About to fall apart
Yes I'm even empty-handed with my bulls-eye dart
Well look at me
Look at me
Look at me
Look at me
About to fall apart
Yes I'm even empty-handed with my bulls-eye dart
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