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Lucas Walter
Attended University of Washington
Lives in Seattle
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Lucas Walter

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It needs to automatically create animated gifs and wirelessly upload them to g+, tumblr.  Also it would be pretty neat if the image editing tool allowed insertion of text at a given depth and have foreground elements occlude it, and the text would blur in and out like the rest of the image.  Then the tumblr uploader would also pull random inspirational quotes from a database and insert them if you can't think of any yourself.  
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Lucas Walter

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Find problems in json file that javascript in a browser will fail silently on:

cat assets/map.json | json_pp

or

cat assets/map.json | python -mjson.tool

http://stackoverflow.com/questions/352098/how-can-i-pretty-print-json/1920585#1920585

To go to a character offset in vim:

:goto 2348
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Lucas Walter

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Is this feedback generated google search result thing something new?  The top result wasn't a regular result, it had a Feedback link in the lower right that then expanded into the 'Not Useful', 'Useful', and 'Awesome' options.

"You may see feedback buttons for some Google Search results. Giving feedback is completely optional. Your input helps improve the Google Search experience."  https://support.google.com/websearch/answer/3338405
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Lucas Walter

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This is going to start up I think right after the +edX AMRx Autonomous Mobile Robot course ends.
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Lucas Walter

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After picking up FTL on sale for some tiny amount (was $3.71 including tax) a couple weeks ago I've finally seen the end credits... on easy.  

I wanted to take a screenshot of my ship at the very end, but the print screen button was disabled/intercepted by SDL- it would be great if the high scores also saved all the details of your ship (or does it?).  My Zoltan ship was less than 30% hull, on fire in multiple rooms with intruders and had lost more than half of the crew (mostly due to stupid inattention).  Coordinated use of the halberd beam and a couple of multi-shot lasers could wear down shields of anything over two or three cycles, and cloaking and 3/4 shield upgrades on top of the default Zoltan shield make for a highly survivable ship.  The only offensive drone I had was a nearly useless beam that very infrequently was able to do damage when the enemy shields went down to nothing.  Missiles went completely unused.

The advanced edition sounds interesting, though I'd like to see the ability to sell the consumables in stores, not just occasional random events.  It would also be interesting to have an ability to use weapons faster at some risk of damaging them, the hull, and anyone in the room with them.  Playable away missions would be great too, maybe in a sequel.
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Spoiler... :P
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Lucas Walter

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Semi autonomous four wheeler for farming markets from +Rogue Rovers : An all electric, all terrain ride-able Rover purpose-built to take on the challenge of Specialty Agriculture. The Rover is uniquely designed to be easy to get off and on and just as easy to operate. In manual the vehicle operates like an every day electric dirt-lover, but switch it to semi-autonomous mode for higher level of drivability, navigation control, obstacle detection and interactivity. With some secret ingredients the Rover does some things around data acquisition and real time alerts that will only make you love your Rover more!

http://www.roguerovers.com/hello-rover/

Details are scarce, no videos or pictures beyond the computer generated one seen below.  Some other info http://www.agprofessional.com/news/Oregon-BEST-funds-semi-autonomous-electric-vehicle--255776731.html
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Lucas Walter

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Just tried this again using a clean Ubuntu 13.10 system and installing +Gazebo Sim  2.0 from source, it went much more smoothly having the proper environmental variables pointing at gazebo (export PKG_CONFIG_PATH=$DEST_DIR/lib/x86_64-linux-gnu/pkgconfig:$DEST_DIR/lib/pkgconfig:$PKG_CONFIG_PATH
 seemed necesary but not sure it is), the only other thing I needed to do is shown by http://answers.ros.org/question/129616/error-while-building-catkin_ws-in-ubuntu-1310/ - run rosdep check --from-paths src --ignore-src --rosdistro hydro -y and then sudo apt-get everything it lists except for gazebo2, then move on to doing the catkin_make_isolated without worrying about the gazebo2 missing error from rosdep.
Since there aren't any ROS packages for 13.10, I'm did a full catkin source install as specified in http://wiki.ros.org/hydro/Installation/Source. I'm also going to do a full gazebo 2.0 install from source in order to debug h...
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Robot Mechanics and Control, Part I from +edX 

I think this will be what I was hoping AMRx would have more of (and which the first two weeks had before itswitched to three weeks of computer vision).

This course provides a mathematical introduction to the mechanics and control of robots that can be modeled as kinematic chains. Topics covered include the concept of a robot’s configuration space and degrees of freedom, static grasp analysis, the description of rigid body motions, kinematics of open and closed chains, and the basics of robot control. The emphasis is not on the latest research trends and technological innovations in robotics, but on learning the fundamental concepts and core principles that underlie robotics as a scientific discipline. The intent is to help students acquire a unified set of analytical tools for the modeling and control of robots, together with a reliable physical intuition that recognizes the unique and interdisciplinary nature of robotics—in short, content that will serve as a reliable foundation for whatever trends may appear later, and remain relevant to both the practitioner and researcher. This course is the first of two parts of “Robot Mechanics and Control.” Part II will start shortly after completion of Part I.
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It is not an introductory, “get-a-taste-of-X” course whose primary objective is to entice you to consider science or engineering as a major or career (although if this course also manages to serve that function for you, then even better). You won’t be seeing many videos of the latest trends and technologies in robotics. There are other courses that serve this function much better. Rather, I’ve tried to recreate, as faithfully as possible, the same learning experience that undergraduate engineering students at Seoul National University who enroll in my traditional course would get. Neither the exercises nor workload have been watered down for this online course. It will be challenging but fun
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This sort of thing would be very useful for that +CorridorDigital superman video Superman With a GoPro or any video where synthetic aerial video might be preferable to the real thing.  Maybe some of the data would be freely available from public sources, or one could capture their own street level and drone imagery of an area and then build up a model and import it into a 3D animation tool.  And from there ideally the scene could be relit and completely artificial 3D elements seamlessly introduced and the flight path of the aerial camera could deviate by any amount from the path the real drone actually took.
 
Impressive demo from +Acute3D  of Fusion of Aerial and Street-level imagery.

3D model ensures a smooth and consistent transition between parts of the building visible in far and close views. 
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+AEROmetrex has some impressive videos along these lines, it's not as clear what process created them (and how much user intervention).

 Spacecraft over Melbourne and Federation square intregrates a synthetic spaceship into their survey derived 3D city.
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Lucas Walter

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Is there any way to get a steerable hybrid mode?  An ability for the user to flip rapidly between either extreme while riding maybe, though a passive system that is just tuned to do what the rider probably wants to do would be best.

It would be really great to have a physics simulation of this (in a web browser ideally) where the user could mess around with spring constants and other parameters and then attempt to riding around an obstacle course.
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I ran across the a lot of 'tilting trikes', all recumbent though.  Also the Toyota i-Road- the same thing but enclosed and electric powered.  All fascinating to watch in action.  Thanks!
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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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