GroG's blog

Sparse Feature Optical Flow

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I've added "OpticalFlow" filter to OpenCV (worke branch), and here seeing throuhg work-e's kinect eye - you can see worke-e turning left ... or was it right ? :) 

So to make this useful for collision avoidance, some work will need to be put into it.  Like describing the direction vector.  Also some semi-intelligent pruning of data. 

It starts by getting good features to track. Which itself has a few parameters to tweak.


freenect-glview vs mrl

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freenect-glview image
 

BoofCV - reloaded ...

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Thanks wvantoorn for the link.
It looks like BoofCV is active again ... Woot !

Since there were no updates for a long time I think kwatters and myself lost interest in this project and MRL's corresponding service - http://myrobotlab.org/service/BoofCv


Kinect Navigation Filter in OpenCV Service .. (wip)

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High Road - Kinect mounted high, pointed down (glview)

Low Road - Kinected mounted low - pointed straight (glview)


Work-E has grown antenna

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Thanks again to Ray's suggestion, I purchased a $9.00 DC-DC buck converter from Amazon - which will be powering all the 12v devices on Work-E such as the wifi router and the kinect ... Progress !


Virtual Joysticks are Un-Breakable ! .. (mostly)

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It took "too" long, but I got virtual Joysticks working ! ...  
To be precise, any device (joysticks, gamepads, keyboards, touchpads, .. etc) which the Joystick service can see can now be "virtualized".

Ok, so what the hell does that mean ? :)


MotorControl and MotorController - Range Mapping, Min Max, Input Output

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One of challenges with the old mapper was what to do when setting new values of min & max.
In the above diagram we see a range established by a min & max. 

e.g.  mapper = new Mapper(-1, 1, -1, 1)  

min & max input will be -1 & 1  .. min & max output will be -1 & 1


Learning Dexterity

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Thanks Jeff Schneider !!!

Original Link :

https://blog.openai.com/learning-dexterity/

Very Lovely Doc :


Speech and Security Updates

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AbstractSpeechSynthesis

Inspired from moz4rs initial work here.  


ServoOrchestrator and InMoovGestureCreator for the Ogre

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Lets keep organized, do some research, and define some requirements & a plan for the "Ogre" release of MRL.