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<!DOCTYPE html>
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<div>
<link href="./s24-yan-lidar.css" rel="stylesheet" />
<div class="s24-yan-lidar-container">
<div class="s24-yan-lidar-content">
<div class="s24-yan-lidar-nav-bar">
<img
alt="Rectangle1I145"
src="public/external/rectangle1i145-k1uq-200h.png"
class="s24-yan-lidar-rectangle1"
/>
<div class="s24-yan-lidar-group1">
<img
alt="Ellipse1I145"
src="public/Streamline/logo_1-600w.png"
class="s24-yan-lidar-ellipse1"
/>
<span class="s24-yan-lidar-text">The Rivers Streamline</span>
</div>
<div class="s24-yan-lidar-group3">
<a href="index.html" class="s24-yan-lidar-text01">Home</a>
<span class="s24-yan-lidar-text02">About</span>
<a
href="https://www.instagram.com/rivers.streamline/"
target="_blank"
rel="noreferrer noopener"
class="s24-yan-lidar-text03"
>
<span>Instagram</span>
<br />
<br />
</a>
</div>
</div>
<div class="s24-yan-lidar-content1">
<div class="s24-yan-lidar-main-content">
<div class="s24-yan-lidar-content2">
<div class="s24-yan-lidar-oarticle">
<div class="s24-yan-lidar-blog-info">
<div class="s24-yan-lidar-heading">
<span class="s24-yan-lidar-text07">
How Technology Sees the World: An Introduction to LiDAR
</span>
</div>
<div class="s24-yan-lidar-short-info">
<div class="s24-yan-lidar-aauthor">
<img
alt="ImageI2101"
src="public/external/imagei2101-pano-200h.png"
class="s24-yan-lidar-image"
/>
<span class="s24-yan-lidar-text08">Chelsea Yan</span>
</div>
<span class="s24-yan-lidar-text09">Spring 2024</span>
</div>
</div>
<img
alt="Image2101"
src="https://media.evkx.net/multimedia/technology/sensorsandcameras/lidar/HD_Maps_Luminar.png"
loading="lazy"
class="s24-yan-lidar-image1"
/>
<div class="s24-yan-lidar-para">
<span class="s24-yan-lidar-text10 AMainArticleText">
<span>
Have you ever wondered how your phone recognizes your
face? How cars can detect nearby objects? Or even how
Google Earth takes incredibly clear images of the Earth?
</span>
<br />
<span>
All of that is thanks to LiDAR (which stands for Light
Detection and Ranging), and it is crucial to how
technology can see and process the world around us.
</span>
</span>
</div>
<div class="s24-yan-lidar-para1">
<span class="s24-yan-lidar-text14">How it Works</span>
<span class="s24-yan-lidar-text15 AMainArticleText">
<span>
LIDAR, or Light Detection and Ranging, uses pulses of
light to allow technology to see the world in 3D. It
sends out pulses of light from a laser, which then
bounce off of surrounding objects before returning to
the LiDAR sensor. By measuring the distance the light
pulse traveled, an incredibly accurate 3D image can be
constructed.
</span>
<br />
</span>
</div>
<div class="s24-yan-lidar-quote">
<span class="s24-yan-lidar-text18 ArticlequoteRegular">
<span>
LIDAR, or Light Detection and Ranging, uses pulses of
light to allow technology to see the world in 3D.
</span>
<span class="ArticlequoteRegular"></span>
</span>
</div>
<div class="s24-yan-lidar-para2">
<span class="s24-yan-lidar-text21">
A Quick History of LiDAR:
</span>
<span class="s24-yan-lidar-text22">
<span class="AMainArticleText">
The idea behind LiDAR was first developed by E.H. Synge,
who used light and measured how long it took for the
light to return to calculate the distance of nearby
objects, which established the basis for LiDAR.
</span>
<br class="AMainArticleText" />
<br class="AMainArticleText" />
<span class="AMainArticleText">
Advancements in LiDAR continued, as its applications
were immense–including precise targeting for defensive
operations, atmospheric research, and land mapping. In
the 1960s, applications for LiDAR within aerospace
became mainstream, notably through NASA’s use of LiDAR
on Apollo 15 for surface mapping on the moon. Later, in
the late 1980s, with the widespread use of global
positioning systems (GPS) and inertial measurement
systems (IMUs), LiDAR became common for commercial
products.
</span>
<br class="AMainArticleText" />
<br class="ArticlePOfficial" />
</span>
</div>
<img
alt="Image2101"
src="https://velodynelidar.com/wp-content/uploads/2021/09/AlphaPrime_SF_Screengrab_02_cx.jpg"
class="s24-yan-lidar-image2"
/>
<div class="s24-yan-lidar-para3">
<span class="s24-yan-lidar-text29">LiDAR Today:</span>
<span class="s24-yan-lidar-text30">
<span class="AMainArticleText">
Today, LiDAR’s ability to reconstruct 3D scenes has
applications in autonomous navigation, computer vision,
environmental monitoring. Although LiDAR has impressive
imaging capabilities, its usage for monitoring of large
distances is held back by key limitations. Because a
LiDAR sensor can generate millions of data points a
second, it is challenging to compute such enormous
volumes of data. Massive datasets of input data, noise,
expensive initial and maintenance costs, and high power
usage make LiDAR extremely difficult to use for long
periods of time.
</span>
<br class="AMainArticleText" />
<br class="AMainArticleText" />
<span class="AMainArticleText">
Additionally, LiDAR is limited in the variety of
situations in which it can be deployed. As a light-based
imaging system, environmental conditions such as
lighting, precipitation, air quality, and visibility may
impact its performance in taking an ideal scan..
</span>
<br class="AMainArticleText" />
<br class="AMainArticleText" />
<span class="AMainArticleText">
Despite these limitations, the power of LiDAR can not be
denied, and there is no doubt that its technologies will
improve over time. Currently, new models are being
developed to optimize the computation of LiDAR data. For
example, combining LiDAR with a camera and estimating
scene depth are currently promising techniques. As the
technology behind facial recognition, autonomous cars,
and satellites, the development of LiDAR is truly one to
look forward to.
</span>
<br class="AMainArticleText" />
<br class="ArticlelgRegular" />
</span>
<span class="s24-yan-lidar-text40">Sources:</span>
</div>
</div>
<div class="s24-yan-lidar-oconclusion"></div>
<div class="s24-yan-lidar-para4"></div>
</div>
</div>
</div>
<div id="footer" class="s24-yan-lidar-footer">
<div class="s24-yan-lidar-contents">
<span class="s24-yan-lidar-text41">
<span class="s24-yan-lidar-text42">Contact Us</span>
<br />
</span>
<span class="s24-yan-lidar-text44">
<br />
<span>Co-founders:</span>
<br />
<span>Chelsea Yan: [email protected]</span>
<br />
<span>Joyce Do: [email protected]</span>
<br />
<br />
<span>Faculty Advisor:</span>
<br />
<span>Stewart Pierson: [email protected]</span>
</span>
</div>
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<span class="s24-yan-lidar-text57">About</span>
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</span>
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<span>
This website showcases the original written work of members of
Streamline. Streamline is a
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<span>student-run magazine and club at The Rivers School.</span>
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