From: Craig H. <cr...@gu...> - 2006-05-12 17:18:07
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We're working on next-gen gumstix stuff now; I think actually that the main contenders at this point for next-gen CPU don't have FPUs on them. As someone said to me the other day though "If you know what you're doing, fixed point math will always be faster anyway though". My reply was "Yeah, but show me the open source lib which saves me having to code it myself, man!" I think the topic was actually MP3 encoders -- incredibly, there doesn't seem to be a decent fixed-point open source MP3 encoder out there. C On May 11, 2006, at 10:19 AM, Erik D. Rodriguez wrote: > Ahh... yeah... You know, that stood out and poked me in the eye > when I was considering the Gumstix. For some reason, I didnt pay a > great deal of attention... Don' need no stinkin FPU!!! Argh, > yeah... Hmmm. That is going to have a pretty big impact even if I > dont use iLab. Most my neural network code is floating point. Any > chance of a FPU enabled Gum? Either way, no HUGE loss as the Gum is > more than capable of dealing with most of the primary functions. > > ________________________________ > > From: gum...@li... on behalf of Craig > Hughes > Sent: Wed 5/10/2006 12:54 AM > To: gum...@li... > Subject: Re: [Gumstix-users] iLab Toolkit/Visual Processing > > > I haven't used it, but I notice that this is a floating-point > library, and since there's no FPU on the gumstix, it's going to run > EXTREMELY slowly. If you want to run code on the gumstix, you > should probably look for a fixed-point library instead. > > C > > On May 9, 2006, at 10:40 AM, Erik D. Rodriguez wrote: > > > I am currently working through the object model of the iLab > Toolkit (See http://ilab.usc.edu/toolkit/) classes trying to > determine which classes I need for my project, and which would work > on the Gumstix. Then it struck me, perhaps one of you have used > this? (And would be willing to share information/Examples) If not, > have any of you used any other visual processing software? I am > trying to use an established toolkit to allow my robot a basic (Or > better) visual understanding of its environment. iLab looks like a > very useful and competent toolkit, but it also appears incredibly > processor intensive (And very large!). > > I am not really looking for any form of image recognition, but > visual path and object detection are a concern. Other things such > as object tracking, and path projection would be useful. > > > <winmail.dat> |