I am going to try to engage Subutai and Jeff today and will follow up. There was a lot of previous experimentation with vision so no point in trying everything again.
On Tue, Aug 13, 2013 at 10:10 AM, Hideaki Suzuki <[email protected]> wrote: > Hi Scott san, > > Thank you for your comment and clarification. > > In that sense, would JIRA be the better place to gather pieces of > information for discussion? > > I have a few more ideas of enhancement for 2D input; local inhibition, > boosting,... ,etc. > (from software perspective) > > Best Regards, > > 2013/8/14 Scott Purdy <[email protected]> > >> You are correct that a separate scalar encoder for each pixel would not >> be a good method. You would want to create a vision-specific encoder which >> may do a number of preprocessing techniques to capture the semantics of the >> data. You would also want to use topology in the SP (currently the default >> is global inhibition). And I believe that hierarchy is somewhat important >> to vision problems, although may not be necessary for some problems (I >> don't really know). >> >> This is a pretty big task in general. We have been talking about putting >> up details around some domains like vision and NLP to help guide research >> so we will follow up if we can get something like that together for vision. >> >> >> On Tue, Aug 13, 2013 at 8:21 AM, Hideaki Suzuki <[email protected]>wrote: >> >>> Hello people, >>> >>> Today, I've got one idea in my mind. Do you have any opinion or >>> interest for this? >>> >>> Nupic uses scalar encoder to feed numbers to SP, IIUC. >>> >>> If we want to feed an image to SP, each pixel has an integer value and >>> the number of pixels are large. It sounds not so easy to me that we >>> convert >>> million pixel values through scalar encoder and feed them to SP. >>> >>> Can dithering work as the encoder? I mean this. >>> http://en.wikipedia.org/wiki/Dither >>> >>> Our brain recognizes a black & white binary image as if it is a >>> grayscale image >>> after dithering. Does our retina convey the intensity of light in a >>> similar way of >>> dithering...? >>> >>> # I was a bit away from ML due to a business trip. I hope I can be more >>> active now. :) >>> >>> Best Regards, >>> Hideaki Suzuki. >>> >>> _______________________________________________ >>> nupic mailing list >>> [email protected] >>> http://lists.numenta.org/mailman/listinfo/nupic_lists.numenta.org >>> >>> >> >> _______________________________________________ >> nupic mailing list >> [email protected] >> http://lists.numenta.org/mailman/listinfo/nupic_lists.numenta.org >> >> > > _______________________________________________ > nupic mailing list > [email protected] > http://lists.numenta.org/mailman/listinfo/nupic_lists.numenta.org > >
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