Re: Help: a handheld image processing device

In article <68adnTfwZsrTGWrVnZ2dnUVZ_jOdnZ2d@xxxxxxxxxxxx>,
whyyjq@xxxxxxxxx says...
I was asked to design and implement a handheld image processing device.
The
function of the device is that the camera captures an image,then do
some
simple image processing, and then display the result on a LCD. Repeat
this
procesure. The maxium resolution of the image is 1280x960, the frame
rate
10fps. the image is black and white.

Is that black and white - binary, 8bit, 10bit, 12bit, 16bit or some
other value?

What simple image processing could it be done by FPGA/DSP?

All the functions have been implemented by someone on NI CVS1455, with
a

Written in C/MatLab/.....

camera from SONY IEEE1394 interface.Now I have to implement all these
funtions on a handheld device. The smaller, the better. it is
battery-based.

For that resolution of screen, if it has a backlight, that will be the
battery drain.

Could you please give me some suggestions? What hardware platform is
appropriate? What kinds of camera (USB or IEEE1394 or Camera Link)
should I
choose? Anything I should be aware?

Why not do a direct camera interface from a camera chip?

If you put USB you potentially have to supply 500mA at 5V (2.5W) of
power. and as a HOST interface. Why make life difficult for yourself.

Using a camera chip direct will be a LOT smaller and less
power drain. Think of mobile phones with cameras in, they do
NOT have a USEB/IEEE1394/or other interface.

Thank you very much!!

I think you have been given or taken on more than you
are capable of.

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Thank you very much for your reply.

1.The image is about particles such as dust etc. The function of the
device is to calculate the sizes of the particles in the image, and then
display the distribution of the numbers of the different size particles.
It is black and white: 8bit

2.The system has been implemented based on NI CVS1455, programmed in
LabVIEW, and Vision Assitant which has all image processing functions,such
as threshold, fill hole and counting pixels. They can transferd to C code (
I think).

3.The LCD only displays the numbers of differnt size particles, probably
in graphic style.

4. The device only works for about a few minutes, then switch off.

5.>Using a camera chip direct will be a LOT smaller and less
power drain. Think of mobile phones with cameras in, they do
NOT have a USEB/IEEE1394/or other interface.

That is a very good suggestion. But I don't want to start from scratch.
Any development board which I can use?

6.>I think you have been given or taken on more than you
are capable of.

I totally agree with it. My boss is not familiar with embedded sytems, and
said the device should be very easy to implement. The time buget is two
months. But i don't think so. I only have experience with designing simple
embedded system, don't have experience with camera/image processing etc.

Please recommand me some development boards, or give me more suggestions.

Thank you very much!!

.

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