chrome experiments link

Start with a line, let the planet complete the picture.

Satellite images provide a wealth of visual data from which we can visualize in interesting ways. Land Lines is an experiment that lets you explore Google Earth satellite imagery through gesture. “Draw” to find satellite images that match your every line; “Drag” to create an infinite line of connected rivers, highways and coastlines.

Using a combination of machine learning, optimized algorithms, and graphics card power, the experiment is able to run efficiently on your phone’s web browser without a need for backend servers.

Learn more about how the project was created in this technical case study or browse the open-source code on GitHub .

We used a combination of OpenCV Structured Forests and ImageJ’s Ridge Detection to analyze and identify dominant visual lines in the initial dataset of 50,000+ images. This helped cull down the original dataset to just a few thousand of the most interesting images.

For the draw application, we stored the resulting line data in a vantage point tree . This data structure made it fast and easy to find matches from the dataset in real time right in your phone or desktop web browser.

We used Pixi.js , an open source library built upon the WebGL API, to rapidly draw and redraw 2D WebGL graphics without hindering performance.

All images are hosted on Google Cloud Storage so images are served quickly to users worldwide.

Made by Zach Lieberman , Matt Felsen , and the Data Arts Team. Special thanks to Local Projects .

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What is chrome music lab.

Chrome Music Lab is a website that makes learning music more accessible through fun, hands-on experiments.

What can it be used for?

Many teachers have been using Chrome Music Lab as a tool in their classrooms to explore music and its connections to science , math , art , and more. They’ve been combining it with dance and live instruments .

Can I use it to make my own songs?

Yes. Check out the Song Maker experiment, which lets you make and share your own songs.

Do I need to make an account?

Nope. Just open any experiment and start playing.

How were these built?

All our experiments are all built with freely accessible web technology such as Web Audio API , WebMIDI , Tone.js , and more. These tools make it easier for coders to build new interactive music experiences. You can get the open-source code to lots of these experiments here on Github .

What devices do these work on?

You can play with these experiments across devices – phones, tablets, laptops – just by opening the site on a web browser such as Chrome .

What's next for Chrome Music Lab?

We always get inspired by new, unexpected ways that people use these experiments. If you’d like to share something with us, post it with #chromemusiclab or drop us a line .

July 2012 | By Google