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Embedded image compression
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| amerdsp 2006-04-20, 6:56 pm |
| Greetings,
When an embedded wireless system has a an image sensor, what is
usually used to compress the image for transfer over a GSM network
similar to a cell phone unit?
- Do cell phones/devices have dedicated hardware (FPGA,DSP)?
- Is the compression done in software? I am guessing that would need
a powerful MCU that will consume a lot of power
I am a new at this so any info will be helpful.
Thank you for your time and help.
A
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amerdsp wrote:
> - Is the compression done in software? I am guessing that would need
> a powerful MCU that will consume a lot of power
A cellphone already has a 32-bit MCU that can handle this easily in
software. But they have DCT/iDCT hardware, at least, to help with MPEG
compression and playback.
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