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My name's Adam Lewinter . I'm a 

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research physical scientist here at the 

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Cold regions Research and engineering 

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laboratory and I work in the remote 

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sensing G . I . S . Center of expertise . 

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So my team , the light . Our group at 

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the remote sensing G . I . S . Center 

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of expertise specializes in . As you 

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would imagine , lidar lidar stands for 

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light detection and ranging , lidar 

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uses light specifically lighter uses 

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very fast pulses of laser light 

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to measure distances from the sensor to 

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an object . And from that by doing it 

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really fast we're talking millions of 

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pulses per second . You can create a 

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very high accuracy high resolution 

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three dimensional model of your 

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surroundings . So mobile lidar is used 

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to capture high resolution , high 

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accuracy three D . Models of large 

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areas in a short amount of time . So 

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for example in the Army Corps were 

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interested in some of our civil works 

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infrastructure , Levees dams , 

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reservoir infrastructure in order to 

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map those . If you're doing a 

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traditional survey tripod set up , it's 

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going to take you days or weeks to map 

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an entire area . Whereas with the 

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mobile laser scanning system where 

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mobile lidar you can drive it in a 

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couple hours even you know , tens of 

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minutes and capture an entire area with 

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centimeter scale accuracy and 

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resolution . The laser scanner we have 

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is a dual head laser scanner . So if 

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you look up on top there's two scanner 

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heads and then there's uh a we call it 

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like the octopus of cameras radiating 

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out from the base . Inside of this 

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scanner housing is the inertial 

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measurement unit that's mounted on top 

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of this very tall vehicle . The higher 

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up we are , the better the field of 

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view , the better perspective you know 

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it's just like climbing up on top of 

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the ladder at a concert . You'd be able 

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to see much better than if you're stuck 

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behind some six ft five person . And 

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then that control box connects to the 

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different power sources on the vehicle . 

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And then it also connects to the 

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drivers or operators display . And 

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really it is a one person operation to 

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start the system . You turn it on . You 

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need to allow the I . M . You to 

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essentially bake in and find its 

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initial static position as that's 

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happening . You're checking on the 

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scanner and the cameras and making sure 

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there all configured correctly . Then 

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you do what's called a dynamic 

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alignment , basically perturbing or 

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moving the I . M . U . So that it can 

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find more precisely it's attitude , 

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it's heading in its direction and its 

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position . And then you just start 

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scanning . The options are kind of 

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limitless . You can create a lot of 

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different products and for each project 

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and each need the products change 

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depending on what the actual focus is , 

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what the measurement is . What's the 

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quantification that's needed . 

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Yeah