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Today's Topics:
1. Re: Suggestion for IP CAM (Martin Davies)
----------------------------------------------------------------------
Message: 1
Date: Sun, 11 Jul 2021 09:00:12 +0100
From: Martin Davies <mar...@savcom.co.uk>
To: 'Motion discussion list' <motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] Suggestion for IP CAM
Message-ID: <8a667301-f124-4e36-8573-883a700dd...@savcom.co.uk>
Content-Type: text/plain; charset="utf-8"
That's true, Roger, but coming from an astrophotography hobby, there are
techniques you (Motion?) can use to improve performance.? One technique is
'binning' which groups pixels together. This lowers the resolution but
increases low light performance.? Another is a technique known as stacking,
where you combine frames to improve the image in low light.
?Best wishes
Martin Davies?
On 11 Jul 2021, 00:58, at 00:58, Roger Heflin <roger.hef...@gmail.com> wrote:
>Something else to note, the higher the resolution almost always means
>worse low light performance (given the same sensor technology), so if
>you need low light you may want to reconsider 4k cams, or you may want
>to use a mixture.
>
>1/2 the pixels with the same sensor size gets 2x the light and works
>better at night. And almost all of the security cam type devices have
>roughly the same sensor size.
>
>On Sat, Jul 10, 2021 at 10:10 AM S Andreason <sandrea...@gmail.com>
>wrote:
>>
>> Hi Markus,
>> Check the camera's video encoding setting, H264 uses less CPU to
>decode
>> than H265/HEVC.
>> and of course, the higher the resolution, the slower things will go.
>>
>>
>> Markus Tobatz wrote:
>> > RTSP stream in FullHD and that resulted in 90% CPU usage just for
>> > that one camera)
>>
>>
>>
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