I understand that certain camera models include features like face detection, license plate reading, etc., but can some of this be processed be the NVR using standard cameras? I know Dahua has their "Lite", "Pro", "WizMind" and WizSense" models of NVRs and it looks like the "Pro" NVR5216-16P-4KS2E , "WizMind" NVR5216-16P-I/L and "WizSense" NVR2216-16P-I models may do some of that processing on the NVR. Can anyone provide a little more insight into the differences between these models of NVRs and the possibility of using basic Dahua cameras with these NVRs to get these features? What do you think is the best bang for the buck in Dahua cameras with face detection?
Do AI features like Face Detection, People Counting, ANPR, etc. need to be on the camera or can certain NVRs do it?
- Thread starter Data1
- Start date
Yes - please look at the technical data. For example:
> 1-channel face detection and recognition (AI by NVR); 1-channel perimeter protection (AI by NVR); up to 10 face databases and 5,000 face images; 4-channel SMD Plus (AI by NVR);
AI by NVR means the NVR does the job and your camera doesn't need AI-Features. You can choose who should do the job.
NVR2108-I WebGUI
ThomasCamFan
Pulling my weight
If you choose to have the NVR do the AI then I suggest reviewing the spec sheet to see the impact to the Network Bandwidth and Decoding Capability. Those things will be affected when NVR's AI is enabled.
The Dahua NVRs with sufficient AI to do several cameras are expensive. Every installation is different, but sometimes it is lower cost to use AI capable cameras instead of a NVR that does it.
- Thomas
The Dahua NVRs with sufficient AI to do several cameras are expensive. Every installation is different, but sometimes it is lower cost to use AI capable cameras instead of a NVR that does it.
- Thomas
+1 above!!!
In the example in Post #2, the NVR is only capable of AI on one channel.
And if you really want it for facial recognition like to identify specific people, most of us have found that facial recognition is more gimmicky and novelty than anything else. If you have to put in 5 or 10 or 15 or 35 pictures or more of yourself in the system for it to recognize it is you...then you shouldn't expect much.... My success rate was under 5% so I moved on to other things LOL.
It can work in certain situations like a business that requires everyone to stop in front of the camera and the camera is at head height. Outside of that, the percentage of being accurate is probably not going to be super high. You will get a lot of false "confirmations" doing a search.
Someone here posted once how horrible it was inside his house identifying his neighbors and others as him. Another guy his kids and wife were being tagged as him.
Unless you spend the big bucks that casinos and airports have LOL.
Heck even in ideal situations like a business with the camera at ideal height and optimal lighting it fails....
ipcamtalk.com
In the example in Post #2, the NVR is only capable of AI on one channel.
And if you really want it for facial recognition like to identify specific people, most of us have found that facial recognition is more gimmicky and novelty than anything else. If you have to put in 5 or 10 or 15 or 35 pictures or more of yourself in the system for it to recognize it is you...then you shouldn't expect much.... My success rate was under 5% so I moved on to other things LOL.
It can work in certain situations like a business that requires everyone to stop in front of the camera and the camera is at head height. Outside of that, the percentage of being accurate is probably not going to be super high. You will get a lot of false "confirmations" doing a search.
Someone here posted once how horrible it was inside his house identifying his neighbors and others as him. Another guy his kids and wife were being tagged as him.
Unless you spend the big bucks that casinos and airports have LOL.
Heck even in ideal situations like a business with the camera at ideal height and optimal lighting it fails....
What do you think of Dahua's "Uyghur Warnings"?
Good luck. Wish you no ill will. I'm not here to argue with people simply to contribute when and where I can. This is also followed by lending my views on current technology and how it impacts all of us. It's undisputed that splitting of the atom changed the world but once again man decided to...
mat200
IPCT Contributor
- Joined
- Jan 17, 2017
- Messages
- 14,034
- Reaction score
- 23,371
In general:
NVRs :
Primary job is to record what the cameras stream to them, thus NVRs are less powerful .. and in many IP PoE setups the idea is to move more functionality ( motion detection and the like ) to the cameras themselves. ( more processing power in the cameras, and less lifting in the NVRs ).
Thus many NVRs have limited processing power.
This is why many like using PCs which has more power for processing .. ( Blue Iris being a good option for many here )
Yes, it's always better if the camera can do face detection or other AI features, but if you only have old cameras without AI - like me - you get AI feature for a cheap price. I paid 125 € for the Dahua NVR2108-I (home office) and 80 € for my NVR2104-I (living room). I use 2-channel perimeter detection AI by NVR for Dahua SD49225T-HN and Dahua SD1A203T-GN-W and 3 of 4-channel SMD AI by NVR for 3 x Dahua SD1A203T-GN.
If I wanted to replace the SD1A203T-GN by the newer model SD1A404XB-GNR (with AI feature) I must pay ~ € 250 for one piece. It always depends on the situation.
Dahua NVR2108-I = 1-channel face detection and recognition (AI by NVR); or 2-channel perimeter detection (AI by NVR); or 4-channel SMD (AI by NVR)
But you're right face detection is more gimmicky that's why I don't use it.
If I wanted to replace the SD1A203T-GN by the newer model SD1A404XB-GNR (with AI feature) I must pay ~ € 250 for one piece. It always depends on the situation.
No
Dahua NVR2108-I = 1-channel face detection and recognition (AI by NVR); or 2-channel perimeter detection (AI by NVR); or 4-channel SMD (AI by NVR)But you're right face detection is more gimmicky that's why I don't use it.
Sorry I don't understand exactly what you mean. You can use 2-channel perimeter detection (AI by NVR) at the same time and that's how I use it. And on my other NVR I use 3 of 4-channel SMD AI by NVR at the same time.
Setting for my Dahuas
BPS
Channel 4 is my Amcrest AD110.
Yes, the little and cheap NVR is not a rocket, but so far I haven't noticed any problems with NVR AI perimeter detection or SMD. For me it works fine and that's enough for me.
Setting for my Dahuas
BPS
Channel 4 is my Amcrest AD110.
Yes, the little and cheap NVR is not a rocket,
but so far I haven't noticed any problems with NVR AI perimeter detection or SMD. For me it works fine and that's enough for me. Thanks for all the info guys, it's been very helpful!
I have some cameras from Andy already and I found a good deal on a NVR5216-16P-I thats on its way right now so looking forward to experimenting with that a bit. I have some basic 4MP cameras that I'd like to try face detection on and will possibly pick up a dedicated camera with that feature built in.
Although the NVR5216-16P-I has some built in AI functionality, it does not appear to do ANPR or license plate reading. This is a feature I'd like to add, so if there's a way to do ANPR on this NVR, that would be great, but if not I'd consider picking up a camera that would.
The HDBW71242H and SD8A840WA cameras look like they may do ANPR, but I'm not sure since the feature list seems to vary. I'd like to avoid bullet style cameras for the ANPR, but would consider them. There's a video on YouTube that appears to use the SD8A840WA for some incredible ANPR, but I'm not sure from the specs that that feature is included.
I have some cameras from Andy already and I found a good deal on a NVR5216-16P-I thats on its way right now so looking forward to experimenting with that a bit. I have some basic 4MP cameras that I'd like to try face detection on and will possibly pick up a dedicated camera with that feature built in.
Although the NVR5216-16P-I has some built in AI functionality, it does not appear to do ANPR or license plate reading. This is a feature I'd like to add, so if there's a way to do ANPR on this NVR, that would be great, but if not I'd consider picking up a camera that would.
The HDBW71242H and SD8A840WA cameras look like they may do ANPR, but I'm not sure since the feature list seems to vary. I'd like to avoid bullet style cameras for the ANPR, but would consider them. There's a video on YouTube that appears to use the SD8A840WA for some incredible ANPR, but I'm not sure from the specs that that feature is included.