Is a camera designed for VIDEO SURVEILLANCE suitable for videoconferencing?

Question

CCTV

There is a Dahua DH-SD6C220T-HN camera. You need to hold a video conference in a huge room. Who understands, please tell me whether it is realistic to organize a high-quality video conference from such a camera during which you will need to actively change the camera angle and zoom remotely. I read that such IP cameras have a large delay, problems with rendering facial expressions + artifacts. Or, if you can, suggest other good powerful options for video conferencing.

Answer 1

It's some kind of surveillance camera.
A good option for such purposes is Polycom. Expensive. Very expensive.
Still is Cisco and others - did not use, I do not know.
Polycom - standard point-to-point dialing. If you want more points, pay. There's something like $3,000 for a license and $1,500 for maintenance (which is required. Or something else called - I don't remember)
In general , https://polycom-moscow.ru/polycom-realpresence-gro... or this https: //polycom-moscow.ru/polycom-hdx-6000.php is quite suitable (others probably too. I just worked with these). Just looking at what kind of room? 100 meters by 100. 50x50.
Hall 30 by 10 zooms in perfectly, quality is 720.
Facemaptable is clearly visible.

Answer 2

In a large room, constantly changing tilt angles and zooming in on a picture will be problematic, first of all, without good video communication software, ordinary dialers here will cause dissonance and disappointment for the operator of this very conference. Try Russian and sharpened by prof. communications - Truconf. The server part can be downloaded and installed for free for 10 subscribers, you will immediately feel the difference with clouds and chat rooms, many different configurations and support up to 4K video with a 10Mbps channel. The kit includes clients for all OSes, including smartphones. You can control the camera / zoom directly in the conference using a virtual joystick. As a result, 1 person is enough to fully deploy the platform, launch and manage the conference, and the image from the camera, and also the equipment of other participants (on / off and selecting the desired camera, microphones, speakers). You can assign conference moderators and they will also receive the appropriate rights. And you don't have to pay for the cost of an old cast-iron bridge from Tsisok and Polikoms.
Regarding the camera - look at your goals. If you want high quality pictures - this is Logitech (4K/FullHD) or CleverMic (4K FullHD). Truconf gets along great with equipment, including IP cameras, but I would recommend purchasing something closer to videoconferencing than video surveillance. Otherwise, no software will save you from a terrible image and minimal FPS.

Answer 3

TrueConf has software for automatically pointing the camera at the speaker (TrueConf Tracker is called), but then you need PTZ and a microphone array. In general, if you are going to hold conferences, it is better to immediately invest in a normal camera and sound, and, accordingly, in adequate server software at a reasonable price.

Answer 4

Something you reduce everything to some kind of shamanism. If you have a camera on hand - take it and twist it.
1. Big delay. Marketing bullshit from sellers of non-IP systems. If you put the cameras in a separate grid, which will not go to the left traffic, the result will be similar.
2. "Drawing facial expressions + artifacts". The bitrate is about 8 Mbps, the settings are turned off to reduce traffic, the length of the GOP group is about 500ms or less.
All your voiced problems come down to the peculiarities of the h.264 codec with default settings for cctv cameras, and not "hardware features".
PS I hope you do not plan to increase the sound from this camera, this is a very bad idea)

Answer 5

The idea is bad.
There won't be any artifacts.
But there are many problems waiting for you.
First, ip cameras really have quite a long delay.
The second, and it is related to the first, is the synchronization and recording of sound in a large room.
Third, the software by default cannot work with such equipment.
The fourth, zoom and ptz, are often not smooth and slow.
Fifth, slow focus.
My experience shows that a conference call for visits assembled on the knee works so-so. But working solutions are expensive.