A big thanks to the Zoneminder devs for an awesome package. The recent additions for object detection make zoneminder such a powerful tool ... amazing!
As cameras with higher resolutions become cheaper the performance question will likely be more common.
Fine tuning your system is a non-trivial effort. I've been lucky so far and good results but wanted ask for some guidance. I have a Dell R510 32Gb RAM RAID10 11Tb storage with 17 cameras. Many at vga (640x480), some HD (1920x1080) and two at 4k (3840x2160)... 10 - 15 fps. All streaming rtsp ffmpeg with H264 passthrough.
The 4k Amcrests are recent additions and not seeing the same motion detection results.
Key principles for individual camera config .. buffers and zones.
In particular I need to capture at 4k such that image detail is high (zooming and license plate detection/inspection).
I'm starting to experiment with some changes:
1. reducing the Image buffer size to 30 from 50. I'm not exhausting my 32gb ram currently but thought this might be too high for 4k
2. Move all monitors to 24 bit colorspace.
The other issue I'm dealing with is headlights obscuring license plate detection at night.
Any insight appreciated. Thanks
More resolution (4K) and motion detection/perf
Re: More resolution (4K) and motion detection/perf
I've re-read the motion detection and zone discussion on the wiki.
https://wiki.zoneminder.com/index.php/U ... or_Dummies
I was making this more difficult than needed. More resolution doesn't really change the way the system works and the techniques for VGA apply to 4k... as long as you don't have capacity issues (which I currently don't).
I'll be reviewing my zones and returning the camera setups to accepted defaults.
Enabling stats and testing to understand why alarm conditions aren't satisfied is the approach.
https://wiki.zoneminder.com/index.php/U ... or_Dummies
I was making this more difficult than needed. More resolution doesn't really change the way the system works and the techniques for VGA apply to 4k... as long as you don't have capacity issues (which I currently don't).
I'll be reviewing my zones and returning the camera setups to accepted defaults.
Enabling stats and testing to understand why alarm conditions aren't satisfied is the approach.