Author Archives: joelgranados

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About joelgranados

I'm fascinated with how technology and science impact our reality and am drawn to leverage them in order to increase the potential of human activity.

The pictures are here!!!

A couple of weeks ago I received a zip file that contained pictures taken in the arctic.  They were very neatly organized in dated folders.  I received pictures from two cameras.  One of them was intended to test a special … Continue reading

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The convert command. Nice!

I’ve actually used this command before but today I was pleasantly surprised.  I had used it in the past to change from one image format to another.  It’s actually very straight forward and it helps a bunch when you just … Continue reading

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Back of the envelope: Remember! There is a compiler.

Thx to my adviser I realized that there is a compiler translating the stuff that I code.  This becomes extremely relative when you are trying to time certain things.  Is the compiler really translating the code that I write to … Continue reading

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gmail: filter attachment names and auto responses

Searching for a way to better the current way of receiving assignments (We should probably be using something like egroupware for universities, one can dream) I stumbled upon some nifty tricks to make life that much easier. The issue came … Continue reading

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Back of the envelope.

Was reading Jon Bentley Programming Perls (second edition) [1] and  I don’t feel particularly good confessing that I had not read this book before.  It has lots of really nice programming tidbits that can be very helpful in the day-2-day.  … Continue reading

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Image adjust, Its working!!!

Finally got a working command out of my opencv experiment.  I still need to work on some additional aspects.  but the overall src is already finished.  I ended up with 3 major states for the command: video_demo:  This state shows … Continue reading

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Paper: Reducing Power Consumption of Image Transmission over IEEE 802.15.4/ZigBee Sensor Network

Topic of interest: Energy consumption of image transmission in Wireless Sensor Networks. Approach: “Power reduction while transmitting images in WSN over IEEE 802.15.4/ZigBee by disabling MAC acks”.  Some additional control messages needed to be implemented in the application layer. year: … Continue reading

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Dagstuhl 2010, Conet summer school

I spent this week in the Conet 2010 summer school in Dagstuhl.  I beautiful place in the german mid-west.  The first days were a bit rainy, but the weather got better at the end.  This place is like the computer … Continue reading

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Calculate the scaling factor

A couple of days ago I was worried because I did not know how to calculate the scaling factor for my opencv project.  Today I realized that I is easier than I first thought. Lets go over what I am … Continue reading

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Compiling in the Intel many core system

I copied the srpm that I had created in my system to the Intel many core system.  I then ran `rpmbuild -ba shore-storage-manager` and after a little tweak managed to get the package built in the intel machine.  The little … Continue reading

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