Forums

CCD / CMOS affordable camera kits???

Started by vitoal18t May 29, 2005
I tried searching the web, but failed to find what I need, that's wh
I am posting.

I am trying to get up to speed in Digital Image Processing based o
FPGA design

I am having hard time finding a camera kit (cmos or ccd) with VG
resolution. I know Atmel, Omnivision, Kodak, provide sensors, but 
don't want to bother with board layout at this point. I simply wan
to read raw image data from the sensor (camera) and figure out how t
do image processing in an Spartan 3 FPGA

Are there any well known development kits that will let me do that? O
should I just take apart cheap Webcam and solder some wires

Please assist, my budget is at most $50 and I need to find a ccd/cmo
sensor with pinhole lens ASAP.

I am new to imaging field, so please excuse  if my question is poorl
structured.

Thank you

"vitoal18t" <kg6lri@yahoo-dot-com.no-spam.invalid> wrote in message 
news:oI2dna5dTN6G5wTfRVn_vg@giganews.com...
>I tried searching the web, but failed to find what I need, that's why > I am posting. > > I am trying to get up to speed in Digital Image Processing based on > FPGA design. > > I am having hard time finding a camera kit (cmos or ccd) with VGA > resolution. I know Atmel, Omnivision, Kodak, provide sensors, but I > don't want to bother with board layout at this point. I simply want > to read raw image data from the sensor (camera) and figure out how to > do image processing in an Spartan 3 FPGA. > > Are there any well known development kits that will let me do that? Or > should I just take apart cheap Webcam and solder some wires? > > Please assist, my budget is at most $50 and I need to find a ccd/cmos > sensor with pinhole lens ASAP. > > I am new to imaging field, so please excuse if my question is poorly > structured.
If the FPGA board has an RS-232 interface, like the Xilinx Spartan 3 kit, I'd buy a cheap USB webcam and interface it to the kit via an FTDI USB-RS232 chip. Leon -- Leon Heller, G1HSM http://www.geocities.com/leon_heller
"Leon Heller" <leon.heller@dsl.pipex.com> wrote in message 
news:nOWdnZT2LOPhAgTfRVnyiA@pipex.net...
> "vitoal18t" <kg6lri@yahoo-dot-com.no-spam.invalid> wrote in message > news:oI2dna5dTN6G5wTfRVn_vg@giganews.com... >>I tried searching the web, but failed to find what I need, that's why >> I am posting. >> >> I am trying to get up to speed in Digital Image Processing based on >> FPGA design. >> >> I am having hard time finding a camera kit (cmos or ccd) with VGA >> resolution. I know Atmel, Omnivision, Kodak, provide sensors, but I >> don't want to bother with board layout at this point. I simply want >> to read raw image data from the sensor (camera) and figure out how to >> do image processing in an Spartan 3 FPGA. >> >> Are there any well known development kits that will let me do that? Or >> should I just take apart cheap Webcam and solder some wires? >> >> Please assist, my budget is at most $50 and I need to find a ccd/cmos >> sensor with pinhole lens ASAP. >> >> I am new to imaging field, so please excuse if my question is poorly >> structured. > > If the FPGA board has an RS-232 interface, like the Xilinx Spartan 3 kit, > I'd buy a cheap USB webcam and interface it to the kit via an FTDI > USB-RS232 chip. >
Still need drivers for the ftdi chip. All the current usb2serial adaptors do and AFAIK none of them can act as hosts yet. Unless you mean go usbweb cam -> pc -> ftdi-adaptor -> s3kit Could try using one of the older serial webcams. May be able to find one in a disposal shop or similar. Have seen an old logitech serial webcam be used for a similar purpose. What about the cmucam ? http://www-2.cs.cmu.edu/~cmucam/cmucam2/ or a cmucam1 Neither are vga, cheapest is around US$100 Alex
On Sun, 29 May 2005 03:15:23 -0500,
kg6lri@yahoo-dot-com.no-spam.invalid (vitoal18t) wrote:

>I tried searching the web, but failed to find what I need, that's why >I am posting. > >I am trying to get up to speed in Digital Image Processing based on >FPGA design. > >I am having hard time finding a camera kit (cmos or ccd) with VGA >resolution. I know Atmel, Omnivision, Kodak, provide sensors, but I >don't want to bother with board layout at this point. I simply want >to read raw image data from the sensor (camera) and figure out how to >do image processing in an Spartan 3 FPGA. > >Are there any well known development kits that will let me do that? Or >should I just take apart cheap Webcam and solder some wires? > >Please assist, my budget is at most $50 and I need to find a ccd/cmos >sensor with pinhole lens ASAP.
Try http://www.uoptions.info. They have a module that provides either a JTAG or RAW image over a serial link. I cannot access the site right now, but AFAICR the price was in the region of US$50 although the resolution might not be full VGA. Regards Anton Erasmus
On Sunday, in article <oI2dna5dTN6G5wTfRVn_vg@giganews.com>
     kg6lri@yahoo-dot-com.no-spam.invalid "vitoal18t" wrote:

>I tried searching the web, but failed to find what I need, that's why >I am posting. > >I am trying to get up to speed in Digital Image Processing based on >FPGA design. > >I am having hard time finding a camera kit (cmos or ccd) with VGA >resolution. I know Atmel, Omnivision, Kodak, provide sensors, but I >don't want to bother with board layout at this point.
Why when most of these are one chip sensors, and a lot of the Omnivision chips can then have Marshall's board camera lens fittings to go over the chip and have choice of lens to fit, which are cheap!
>I simply want >to read raw image data from the sensor (camera) and figure out how to >do image processing in an Spartan 3 FPGA.
Define raw image data? This could be all sorts of things as RAW data be anything from colour filter signals or differences between adjacent sites up to formatted data signals. They can analog or digital depending on the device being used, CCDs are predominantly analog, CMOS sensors are predominantly digital. If you are not doing board layout how are you going to get the data to a Spartan 3 FPGA?
>Are there any well known development kits that will let me do that? Or >should I just take apart cheap Webcam and solder some wires?
MOST webcams are not VGA resolution they are smaller.
>Please assist, my budget is at most $50 and I need to find a ccd/cmos >sensor with pinhole lens ASAP.
Try Marshalls <http://www.mars-cam.com/optical.html> Try even getting hold of camera and evaluation kits from Omnivision <http://www.ovt.com/>
>I am new to imaging field, so please excuse if my question is poorly >structured.
Image processing is a lot of things from adjusting black level or gain to rotating or fourier transforms of images, what do you men by image processing?
> >Thank you! > >
-- Paul Carpenter | paul@pcserviceselectronics.co.uk <http://www.pcserviceselectronics.co.uk/> PC Services <http://www.gnuh8.org.uk/> GNU H8 & mailing list info <http://www.badweb.org.uk/> For those web sites you hate
My original thought was to read pixel values from a sensor with Baye
filter. So I would end up reading a mosaic of green, red, blue pixel
and then complete the image on the FPGA board.

That's what I meant by raw data. I suppose this sounds like a useles
project since this function is usually done on the chip, unless it i
a 3 CCD camera.

I just thought this would be a great place to start getting up t
speed. I was looking for a development kit, where I can have 
sensor, lense and access to the pins, so that then I can captur
"raw" data with Spartan 3 board

C328-7640 also sounds like an interesting solution with an UAR
interface. It basically uses OV7640 Sensor and OV528 Compressio
Engine that interfaces to UART.

However, I would like to capture the image directly from the sensor
complete pixels (based on adjacent values), possibly compress it an
pass it to the PC via UART where it will be displayed. Spartan Boar
has 1Mbyte of on board memory, so there is enough room to work on 
680x480 image

Thank you, for all your help

I am also poundering similar stuff. I opened an obsolete 2MP digital camera.
The Casio 400K pixel LCD was stripped easily, but the connectors are
difficult
to fit into breadboard. They used some copper strips embedded in a plastic
strip
type. May I know how to recycle this LCD?

Thanks.




"vitoal18t" <kg6lri@yahoo-dot-com.no-spam.invalid> wrote in message
news:oI2dna5dTN6G5wTfRVn_vg@giganews.com...
> I tried searching the web, but failed to find what I need, that's why > I am posting. > > I am trying to get up to speed in Digital Image Processing based on > FPGA design. > > I am having hard time finding a camera kit (cmos or ccd) with VGA > resolution. I know Atmel, Omnivision, Kodak, provide sensors, but I > don't want to bother with board layout at this point. I simply want > to read raw image data from the sensor (camera) and figure out how to > do image processing in an Spartan 3 FPGA. > > Are there any well known development kits that will let me do that? Or > should I just take apart cheap Webcam and solder some wires? > > Please assist, my budget is at most $50 and I need to find a ccd/cmos > sensor with pinhole lens ASAP. > > I am new to imaging field, so please excuse if my question is poorly > structured. > > Thank you! >