[Elphel-support] how to increase the frame rate?

[Alexandre Poltorak]

Hi,

On Thu, Nov 18, 2010 at 8:21 AM, Ákos Maróy <akos at maroy.hu> wrote:

> On 18/11/10 01:07, Oleg K Dzhimiev wrote:
> > 1) if the autoexposure is on - improve the light conditions.
> > 2) turn off the autoexposure (clicking on its icon - "white circle") and
> > decrease the exposure time. The units are 'ms'.
>
> I see this on tab no. 4. in the settings menu (it's not a curcle, the
> auto exposure radio box is a box). the
>
> when I inclick it, I can only adjust the first bar afterwards. I'm
> getting around 5.6 fps
>
> if I check it, I can play with all three bars to set. if I set all to
> the exterme right, I can get around 10 fps. CPU load is still very very
> low, so it's not a CPU bottleneck
>
> there's a 'Maximal exposure' setting there, which is set to 500ms, but
> one cannot edit it :(
>
>
This is a bug. A workaround  is to select the previous field and use tab to
switch to 'Maximal exposure'.


> as for the previously suggested JP4 setting: if I set it, the whole
> image is corrupted in the web preview, and also with mplayer :(
>
> Please read about JP4 here : http://wiki.elphel.com/index.php?title=JP4


> so still, it seems that the limitatio to the frame rate is not the CPU
> in the camera. how can one achieve higher framerates?
>

I guess exposure time.
Regards,
Alexandre

>
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