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Low frame rate in video capture with Stream-it 2 SDK

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Hello,

I am using a Stream-it 2, and the camera application of the RZ/A1 software development kit ("SDK for Camera", CMSIS-RTOS RTX) which I found here: www.renesas.com/.../rza1-software-development-kit.html

The time needed to capture one QVGA frame is 90 ms, which represents a frame rate of 11 FPS. It is not much, knowing that the camera (OV7740) can work at 60 FPS.

What can I do to improve the frame rate? Do I need to make some modification in the CEU driver?

Moreover, I am using the GR-Lychee with the OpenCV project, the same video camera (OV7740), and the VDC5 driver. With this kit I obtain a frame rate of 60 FPS.

Can anyone tell me if the VDC5 driver is more efficient than the CEU driver? Or does my problem with the Stream-it come from the OS or of the hard configuration?

Thank you for your help.


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