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Today's Topics:
1. IR versus Filtered(regular) Cameras - IR seems to suck but I
don't know why (Big Wave_Dave)
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Message: 1
Date: Tue, 5 Jan 2021 13:54:37 -0800
From: Big Wave_Dave <dgmu...@gmail.com>
To: motion-user@lists.sourceforge.net
Subject: [Motion-user] IR versus Filtered(regular) Cameras - IR seems
to suck but I don't know why
Message-ID:
<capztunmwihzgt_xpzo7w33ggv-rstss5wapn3i4a1awbnmj...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hi folks,
I'm a new subscriber to this list.
I'm getting very inconsistent Motion detection results between camera types
and trying to understand why and how to tune them effectively or find
devices that will work well in low light conditions.
I'm using motion with MotionEye web front-end running on Raspberry Pi4 and
a couple Pi-Zero W's).
Cameras are as follows:
[PCV2] Pi Camera V2 [MMAL] [on Motion 4.2.2]
[PNV2] Pi Noir V2 [MMAL} (basically color camera without IR filter) [on
Motion 4.2.2]
[AFW] Aukey FHD Webcam [V4L USB] Color Camera [on Motion 4.3.2]
They are all pointing at the exact same street scene in front of my house
and all set to the same resolution: 1024x576.
I've set the things to Auto Threshold Tuning via MotionEye but the actual
thresholds appear radically different for the same scene. Are there any
tweaks to get Auto Tuning to work better?
For some reason the auto-tuning algorithm on the AFW cmara sets the
threshold to 15000 while the plain PCV2 camera gets 588 and the PiNoir gets
~3500. Seems very odd.
Does anybody have any tips for using any of these cameras effectively with
Motion on these platforms. Ultimately I'd like to add Infrared lights as
none of these cameras are any good in the dark, including the PiNoir as far
as I can tell.
Thanks ahead of time,
Dave
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