What do I need to read 2 cameras of 1080p@30fps on a pc? for realtime computation
Frank wrote 10/08/2017 at 23:47 • 0 pointsHi,
I'm building an antimosquito laser turret, because why not.
I kind of figured out the tracking with opencv but now I need a second camera in order to compute the insect position in space.
Problem is my webcam is saturating the USB host.
What kind of hardware is there in order to get 2 fast live camera feed on a computer?
Is there some special aquisition card that allow the use of special cameras?
I searched but I didn't find anything.
Thanks.
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Check out Aja capture cards here is a link
https://www.aja.com/family/kona
Hope that helps
Electro
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So what I understand FPGAs are the way to go for realtime video processing. There are cheapish alternative to expensive dev boards. The papilio and the mojo come to mind.
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If you can mount your laser on your pan/tilt system relatively near the center line then you can rework your code to simply center on the object. Only one stream required then. Depending on the laser, you could possible also use a dicromatic mirror to make it truly co-linear to the camera view.
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You need to NOT use USB cameras! USB is software driven.
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Uncompressed 1080p@30fps is quite a load of data (close to 2Gbyte/s in 3x8bit)... As a part of my job I have developed a 12MP (CMV12000) camera board which also features a Xilinx Kintex-7 FPGA and PCIe interface. You'll really need a high bandwidth link and a load of high bandwidth memory to process that. I also figure an issue with USB is the latency it introduces, especially when trying to synchronize the two images. This setup comes with its price though... good luck with you venture, it definitely is a cool idea!
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Hi
It is a comlex system. Mosquitos are very small objects. You need to have lens system to restrict the field of view of the camera. Mosquito has to be projected on to at least 10-15 pixels of CCD or CMOS sensor. Frame grabber is interfaced with PC to capture images. Mosquito image pattern will be stored in library. Image processing will be carried out on acquired image to identify mosquito in the scene. Camera mounted on pan/tilt flatform. As mosuito moves make position measurement and close loop pan/tilt movement.
Kanakaraju.
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