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Lucas Walter
Attended University of Washington
Lives in Seattle
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Lucas Walter

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grid_map - Universal grid map library for mobile robotic mapping
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I believe the robots fight each other laser tag style, I'm excited to try them out. Another interesting design feature is the mecanum wheels which allow them to move sideways.
 
Battle with +ROS  robots Wednesday July 27th 7pm at the new Flatstick Pub in Pioneer Square, and hear about the robots from one of the +Robodub inc engineers.
We'll try out the Robodub game which has recently opened at the new Flatstick Pub in Pioneer Square, and hear about the technology from one of their engineers. http://www.robodub.com/
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This is now in Bellevue at the +Robodub inc offices, see the meetup page for details.
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Powersliding with ROS: The AutoRally Platform: http://goo.gl/t2Wn7C #GoROS
From Brian Goldfain at Georgia Tech. We're the AutoRally team from Georgia Tech and we're pushing autonomous driving to the extreme with our AutoRally robot. Our robot reaches speeds of 20mph driving fully autonomously using only onboard sensing and computing at our test track, ...
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Moving from blogspot to lucasw.github.io
Moving from blogspot to http://lucasw.github.io/
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microphone audio -> +GStreamer  encoding +ROS  node -> AudioData msg -> gstreamer decoding ros node -> [-1.0 - 1.0] float array message -> draw waveform in Image (or do whatever with float array)

https://github.com/lucasw/audio_common/tree/appsink
The next step is to have an input node that will subscribe to a float array then encode it with gst, then the existing audio_common audio_play node could play it from speakers.

When drawing waveforms of sequential buffered chunks of a signal, it seems like it would be best to find the phase of the highest strength frequency and then shift the next signal so that visually it doesn't jump around.
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A Portland OR +ROS meetup group was create last month:
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There are multiple comments about this seeming creepy, which I don't get at all- on the scale of 1 to Japanese synthetic flesh robot which has tunneled right through the astroturf plains of the uncanny valley down to bedrock I'd give SpotMini a 2.

On the other hand the dinosaur head gripper strongly suggests a two legged version with a tail ought to be made.
 
This is the latest version of Spot (SpotMini) which is quite small (55 lbs) and all electric.
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It's just the start to Grimlock...
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A Linux car-like robot powered by +ROS
At Erle Robotics we create artificial brains for robots and drones based in Linux. Our brains build their intelligence using the Robot Operating System (ROS) and have access to a cloud-based app store for robots and drones.
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+Alastair Reynolds :

'Pleased to announce that I've sold a pair of stories set in two of my established universes. The first, "Belladonna Nights", takes place in the House of Suns timeline a few million years earlier than the events of the novel. Campion plays a part in the story. This will appear in an as-yet-untitled original anthology with an exceedingly interesting conceptual premise, and I was really thrilled to be able to contribute something.

The second, longer piece, is entitled "The Iron Tactician" and is a new novella featuring my long-running character Merlin. Previous Merlin stories were "Merlin's Gun" (1999), "Hideaway" (2000) and "Minla's Flowers" (2007). The very tentative plan at the moment is that the novella will appear as a standalone chapbook, but we should have a firmer idea in a few months, and of course I'll give fuller details on where these stories will appear in due course.'
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C++, OpenCV
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Seattle
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Introduction
Currently working on underwater 3D laser scanners and various machine vision/computer vision systems.  I used to do avionics for a small aerospace company.


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  • University of Washington
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7 day cancellation policy.
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Pizza was good, didn't like the calzone. Inside of restaurant seemed dirty.
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