- published: 26 Sep 2014
- views: 11529
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. Suggested citation for this video: National Ecological Observatory Network. November 6, 2014. How Does LiDAR Remote Sensing Work? Light Detection and Ranging [Video file]. Courtesy: Battelle. Retrieved from https://youtu.be/EYbhNSUnIdU.
I finally found time to build a system to scan the LIDAR sensor from side to side using some 3D printed gears. This is meant to form the main obstacle avoidance system on my robotic platform. I am using a Garmin LIDAR Lite v3 sensor http://amzn.to/2v7pGmt The slip ring to allow the sensor to rotate http://ebay.to/2eMPduk This is part of a series where I am looking to get my old robotic platform up and running again. Playlist: https://www.youtube.com/playlist?list=PLFHlbmYTPHMTsZSZ742NDHJV3jgZk07GG Subscribe for more videos: https://goo.gl/CDBuPC Twitter: https://twitter.com/ArthurGuy
SunFounder RasPad: https://raspad.sunfounder.com/ Xiaomi Vacuum cleaner: https://goo.gl/EFFQEg Patreon: https://www.patreon.com/marcoreps Additional notes about the Lidar visualization on raspi: https://reps.cc/?p=102 Visualization might work well with this: https://github.com/tipam/pi3d Open source project for controlling the module: https://github.com/getSurreal/XV_Lidar_Controller Open source project for visualizing the data: https://github.com/Xevel/NXV11 In this video I am having a closer look at the most interesting component of the Xiaomi vacuum robot. The Lidar scanner or very similar versions are common components in other vacuum robots. Therefore they are well known and hackable! I am demonstrating that with a Raspberry Pi inside a Sunfounder RasPad demo unit which has some lim...
The time-tagged laser scanner for cost-effective coastal, offshore and inland waterway surveying What if you could map the full marine environment in a single pass? Merlin is engineered specifically to integrate with your vessel's existing hydrographic surveying equipment. It enables you to synchronise Merlin's above-water lidar data with your below-water sensors to simultaneously produce an accurate dataset of the environment above and below the waterline. An affordable marine-grade lidar sensor Merlin gives you access to the advanced laser surveying technology you need without making you pay for equipment you already own.
I put together a basic visualization tool in Processing to see what the data coming back from the rotating LIDAR scanner looks like. Previous LIDAR Update https://www.youtube.com/watch?v=zizrY-cOS9k LIDAR scan of Jodrell Bank - © Arup http://www.shift-digital.co.uk/?event=town-talk-cosmos-daito-manabe LIDAR Sensor http://amzn.to/2v7pGmt Slipring to allow the sensor to rotate http://ebay.to/2eMPduk Subscribe for more videos: https://goo.gl/CDBuPC ELSEWHERE https://arthurguy.co.uk https://twitter.com/ArthurGuy
Check out our website for more information and local contacts - https://leica-geosystems.com/ This professionally produced HD video illustrates how laser scanners work and describes which scanner features are important to consider, the topic of "registration" or stitching multiple scans together, and what type of support is available for implementing the technology. Highlights of key Leica Geosystems' scanner features are described and a high-level overview of software is given. Laser scanning: Chapter 3 of 3 - Simple Projects and Complex Projects - http://youtu.be/cxTYYce_d_8
Engineering geologist, Pete Hobbs, explains how the British Geological Survey landslides team use Terrestrial Light Detection and Ranging (LiDAR). LiDAR is a land-based laser scanner which, combined with a highly accurate differential GPS and camera, enables us to produce 3D computer models of landslides in coastal areas.
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
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.
Mobile LiDAR scanning collection system coupled with automated data extraction can process up to 40 bridges per day. Accurate data on vertical clearances of roadway structures is critically important in oversize route planning. Horizontal clearance measurements must also be maintained. Traditionally collecting this data can be dangerous or can cause congestion with work crews subject to significant traffic hazards. Work must be performed during available traffic breaks which can induce errors. From a system-wide perspective clearance information in many cases is incomplete, inaccurate, difficult to maintain and difficult to access. Obtaining survey grade accuracy at traffic speeds is the proven, most efficient way to accurately measure various structures and roadway features.
my first foray into controlling an electromechanical actuator with a microcontroller, i built this with 2 specific applications in mind; first, as a potential laser harp system, and second as a primitive object detection system for an autonomous robot i'm building. it is currently programmed to move the servo to 7 different angles, each 8 degrees from the next, pausing each time for 150 milliseconds to give the servo adequate time to find the new position. with these long pauses, it takes a little over 1 second to perform a complete scan. it appears as though 150 milliseconds is more than adequate time for the servo to move 8 degrees (based on the stability of the laser impact points), but that a little more time may be warranted for the retrace sweep (the first laser point exhibits a l...
Odometry free SLAM using a Hokuyo UTM-30LX LIDAR system, a low cost IMU and a Intel Atom Z530 CPU. This dataset (with scan and tf data) is available as a ROS bagfile here: http://www.gkmm.tu-darmstadt.de/rescue/?q=node/141 The software is available as open source packages for ROS: http://www.ros.org/wiki/hector_slam
I finally add a servo to the lidar scanner to achieve up and down scanning. This is meant to form the main obstacle avoidance system on my robotic platform. LIDAR Sensor http://amzn.to/2v7pGmt Slipring to allow the sensor to rotate http://ebay.to/2eMPduk Timing belt http://ebay.to/2tCCRaC This is part of a series where I am looking to get my old robotic platform up and running again. Playlist: https://www.youtube.com/playlist?list=PLFHlbmYTPHMTsZSZ742NDHJV3jgZk07GG Subscribe for more videos: https://goo.gl/CDBuPC Twitter: https://twitter.com/ArthurGuy
3D mapping of a room using a rotating LIDAR-Lite v3. The mounting is 3D-Printed and the Lidar is driven by one stepper motor and a servo, controlled by an Arduino Uno. Map rendered using Unity3D. Arduino Source: http://pastebin.com/V66WcgSV Parts for 3D-Print: https://drive.google.com/file/d/0B5dbIxH2PAsPVGJKcEF5MGNoMVk/view?usp=sharing LIDAR-Lite v3: https://buy.garmin.com/en-US/US/prod557294.html Stepper Motor: https://www.adafruit.com/product/324 Motor Driver: https://www.pololu.com/product/1182 Slip Ring: https://www.adafruit.com/product/736 Built and programmed by: Sören Busse, Marcus Wichelmann Modelling of printed mountings: David Bailey Music: https://www.youtube.com/KsTBeats
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...
The future of autonomous driving is on its way. The Velodyne LiDAR system consists of 4 HDL-32E LiDAR sensors mounted on the top of a car. This system is used to explore autonomous driving in a car. The lasers take 3-D measurements 20X's per second of the car's surroundings to generate 700k data points. The result is a real time image showing the surrounding environment. See More Car Videos http://www.autobytel.com/car-videos/ Join Our Facebook Page http://www.facebook.com/autobytel
Encoders are a key part of vehicular LiDAR systems that are used to accurately map vast road infrastructure. Read the application note: www.renishaw.com/lidarapplication LiDAR scanning systems provide precise and accurate co-ordinate measurement data that is used to create realistic and detailed 3D city models viewable from street-level. LiDAR scanning systems consist of a laser range-finder with rotating scan mirror and various positioning and orientation systems. These systems capture 360° 3D point cloud data whilst rotating at more than 1000 RPM. Renishaw's ATOM™ encoder series is perfectly positioned to meet the challenges of high performance in a small footprint. The ATOM encoder is also the world's first miniature encoder to employ advanced filtering optics.