Face recognition

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gauri
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Face recognition

Post by gauri »

Hi,
I am new to XMOS architecture. I would like to know if it is possible to implement any face recognition algorithm on this platform. How does it supports camera and other image processing functions.


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Berni
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Post by Berni »

It certainly is possible but you may have to use external ram for working with a respectable resolution image as the internal ram fills up very fast when you want to store images in it.
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segher
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Post by segher »

64kB per core is quite a lot really; you do have to be a bit careful, of course, and you certainly
have to _think_ about how you're using it. It's easily enough to store an image for this.
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Berni
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Post by Berni »

Well a 320x240 color image is already 150kB. I know that cause i had problems with a frame buffer for a LCD display. I'm guessing he wants a relatively high res camera to do it accurately
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segher
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Post by segher »

Berni wrote:Well a 320x240 color image is already 150kB.
If you store it at 16 bits per pixel, sure. I am saying you don't need that :-)

Everything is always a tradeoff...
gauri
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Post by gauri »

Yes I will be needing relatively high resolution image quality to get accurate results. I will be needing RAM also for storing face feature extraction templates.
In this forum only, I read there are issues with implementing external RAM. Does anyone has experience with it?
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Berni
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Post by Berni »

Well external SRAM works pretty nicely but you need a lot of pins to interface it.
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