Comments for :: JimBlackhurst.com ::

Comment on Bumpy landing on this and other worlds? by Jim

Jim — Fri, 04 May 2012 20:02:17 +0000

Totally agree with you on that one Mr. Gagarin, If I ever went into space I’d want to come home with the russians.

Comment on Bumpy landing on this and other worlds? by Gagarin

Gagarin — Fri, 04 May 2012 04:50:44 +0000

Still better than the unsullessly sophisticated US space shuttle.

Comment on Treemaps and Processing by fab

fab — Wed, 14 Mar 2012 04:39:26 +0000

perfect !

Comment on Heatmaps, Point Clouds and Big Data in Processing by gregg

gregg — Fri, 17 Feb 2012 00:27:51 +0000

11 million data points is actually fairly small. for instance a 3D CT image is typically 20-100 million gray samples. we can render that in volume renderers at 30 FPS with a few pages of openGL code. it’s actually a homework assignment, and students typically complete it in a few hours. and when real-time texture mapping reaches webGL, you’ll be able to render in browsers.

you also might want to look into compressing your data. after binning your data into discrete pixels, flatten the 3D world into a single 1D array, then just list the positions of the non-zero values each as a single index into this 1D array, so 8 bytes per sample is only 80M bytes. encode the difference between neighboring pixels (difference of indices) as a distance, gzip, and you’ll get it down to 5MB, depending on the spatial distribution of the points. simple enough. oct-trees and other more complex encodings can reduce it more, but there’s no need for that once you’ve hit 5MB.

good luck. keep us updated!

Comment on Bumpy landing on this and other worlds? by James

James — Tue, 30 Aug 2011 15:35:58 +0000

Wow, that is a lot of smoke and burnt ground for a small ship coming back to earth.

Comment on Heatmaps, Point Clouds and Big Data in Processing by Jim

Jim — Mon, 18 Jul 2011 17:53:06 +0000

hi Aidan!
Thanks for the comment. Yes I’ve seen a lot of comments about the music too, although the answer is a bit less interesting than im sure you hoped for. The music is a licence free track that comes with the pro edition of Sony vegas which I used for the editing. If you are interested, I originally cut the video to ‘heartbeats’ by Jose Gonallez, but wasn’t allowed to publicly release it for copyright reasons. I still think it fits heartbeats better.
Jim

Comment on Heatmaps, Point Clouds and Big Data in Processing by Aidan

Aidan — Mon, 11 Jul 2011 14:25:34 +0000

Hi Jim,
Love this video. Well done. Quite a few people on youtube (myself included) also love the music used in this video and i’d be eternally grateful if you could let us know what it is as I’d like to hear it in full and more from the same artist.

Comment on Heatmaps, Point Clouds and Big Data in Processing by Death Map Brings Video Game Kills To Life | Tech News In Australia

Death Map Brings Video Game Kills To Life | Tech News In Australia — Sat, 04 Jun 2011 17:58:51 +0000

[...] this data and overlay a kill map while you choose which building to enter or which hill to climb. [Jim Blackhurst via Fast Company Read full post from Tags : 3d Plane, Anonymous, Blackhurst, Brings, Create [...]

Comment on Heatmaps, Point Clouds and Big Data in Processing by the geek escape

the geek escape — Fri, 03 Jun 2011 18:04:59 +0000

[...] and music. He is clearly a data geek and loves it in its raw, visualized form. There is really neat post on his blog about the creation of this video that I recommend if you want to know more. Posted in Games | [...]

Comment on Heatmaps, Point Clouds and Big Data in Processing by Steve

Steve — Thu, 02 Jun 2011 13:10:13 +0000

Very nice visualization. Have you considered simply using logarithmic scaling of the colors to avoid the clipping that you mentioned? (“The palette is scaled so that the cell with the largest value of counts is always pure white, so there is no clipping in the colour…”)