Basic starting point for settings on new SD49425XB

JoshFink

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I completely understand this is a very Noobish question. I've had my previous Dahua cameras set up for many years at my previous house. So much so that it just ran and I never had to check a thing. Which was great.

I moved into a new place and I purchased a SD49425XB from Andy. Fantastic!!

However, I've totally forgotten where to start on settings, some good out of the back things to change and set up. Basic starting points.

Any help would be greatly appreciated.

Thank you!!
 
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Josh, it's unfortunate that your post has been missed as I, too, am having problems configuring Blue Iris with my new SD48425XB. Unfortunately, that isn't the only problem I'm having with this camera, so I'll start another thread tagging this one, too.

Cheers!!
 
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Josh, this was what I got as a response:


Generic/ONVIF
*RTSP H264/H265/MJPG/MPEG4
main stream is /cam/realmonitor?channel=1&subtype=0&unicast=true&proto=Onvif
sub is /cam/realmonitor?channel=1&subtype=1&unicast=true&proto=Onvif

I'm waiting for some ideas on PTZ support but this is a start.

Cheers!!
 

genelit

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Well, i don't know where to start.
How are you storing the recordings, SD-Card, NVR, Blue Iris etc?

To set up the camera a good start is to log in to the camera using IE (!).
Set up a few presents, then set up Smart Plan (start with IVS) for each preset and then set up the IVS rules on the respective presets.

There are more to do but this will likely get you started at least.
 

wittaj

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First use Internet Explorer as this camera more than most will not hold or show all settings in other browsers.

You need to set up a preset.

Then you need to set-up the Smart Plan with Deep IVS for the presets you want to track.

Then go to Deep IVS Rules Config page and you should see Track Time under alarm and Tracking Target size slider.

When setting up IVS rules, I strongly recommend you use intrusion box with appears and crosses instead of tripwire. And less is more. One IVS rule. Then after you know it works, refine it to your field of view. Trip wires may be better, or intrusion box may be better.

1642084360415.png

If you do not have the above screen, then you have a version without autotrack.

In my opinion, shutter (exposure) and gain are the two most important parameters and then base the others off of it. Shutter is more important than FPS. It is the shutter speed that prevents motion blur, not FPS. 15 FPS is more than enough for surveillance cameras as we are not producing Hollywood movies. Match iframes to FPS. 15FPS is all that is usually needed.

Many people do not realize there is manual shutter that lets you adjust shutter and gain and a shutter priority that only lets you adjust shutter speed but not gain. The higher the gain, the bigger the noise and see-through ghosting start to appear because the noise is amplified. Most people select shutter priority and run a faster shutter than they should because it is likely being done at 100 gain, so it is actually defeating their purpose of a faster shutter.

But first, run H264, smart codec off, CBR, and 8192 bitrate to start. This should make it more crisp.

I think you should also take off manual IR - your camera is low so you are getting a lot of IR bounce off the ground that is degrading the picture.

Go into shutter settings and change to manual shutter and start with custom shutter as ms and change to 0-8.3ms and gain 0-50 (night) and 0-30 (day)for starters. Auto could have a shutter speed of 100ms or more with a gain at 100 and shutter priority could result in gain up at 100 which will contribute to significant ghosting and that blinding white you will get from the infrared.

Now what you will notice immediately at night is that your image gets A LOT darker. That faster the shutter, the more light that is needed. But it is a balance. The nice bright night image results in Casper during motion LOL. What do we want, a nice static image or a clean image when there is motion introduced to the scene?

So if it is too dark, then start adding ms to the time. Go to 10ms, 12ms, etc. until you find what you feel is acceptable as an image. Then have someone walk around and see if you can get a clean shot. Try not to go above 16.67ms (but certainly not above 30ms) as that tends to be the point where blur starts to occur. Conversely, if it is still bright, then drop down in time to get a faster shutter.

You can also adjust brightness and contrast to improve the image.

You can also add some gain to brighten the image - but the higher the gain, the more ghosting you get. Some cameras can go to 70 or so before it is an issue and some can't go over 50.

But adjusting those two settings will have the biggest impact. The next one is noise reduction. Want to keep that as low as possible. Depending on the amount of light you have, you might be able to get down to 40 or so at night (again camera dependent) and 20-30 during the day, but take it as low as you can before it gets too noisy. Again this one is a balance as well. Too smooth and no noise can result in soft images and contribute to blur.

Do not use backlight features until you have exhausted every other parameter setting. And if you do have to use backlight, take it down as low as possible.

After every setting adjustment, have someone walk around outside and see if you can freeze-frame to get a clean image. If not, keep changing until you do. Clean motion pictures are what we are after, not a clean static image.
 

JoshFink

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Thanks for the help here. For some reason I never got the reply and just assumed there was no help to be had. I'm going to go through this now.
 
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