SunnyKim

Live Video quality can be the same, as the raw video data can be also sent over PC system memory. The play back from recording quality can depend on the HW or SW that you go for. You can't tell which one is better. But in terms of system stability, it can't be a match. That's why they sell the compression card.

Capture card should be cheaper than the compression card, where video capture then video compression is being done by the compression chip on the board. The compressed bit stream is to be passed over PCI bridge to PC system memory for storage into HDD. The compressed stream is to be read back and decompressed and played back for the monitor. Capture card is to simply capture the incoming video data and to send them over PCI or PCI_E bus to PC's system memory. PC CPU takes them over and compress them, at the same time to display them on the monitor.

You are right in terms of CPU clock. But not for software developemts.

Browncoat, all analog cameras outputs a TV signal, say PAL , NTSC, which gets digitized and decoded and formatted to D1 (720H or So) or 960H. So it's nonsense to say "upgrading into CIF (352H)". The number one market share holder for analog camera is Samsung Techwin, Not Daihua or Hikvision.

You may have to blame the Mother Board Makers based on AMD. Being too much sensitive to cost reduction, they seem not to carry any conformance tests on their device drivers. That's sad, letting alone the fact that AMD can not perform more than 50% of Intel's at 70% of price of Intel's.

EricQ, I already replied to Jhussain. The issues are how to encrypt/protect our software with some Hardwares and some Customization to each customers' need. The project becomes mostly a huge one,we experience. We are looking for some partners to support the projects for each region and countries. If you coming to ISC 2014, Next week, you can give me a call for meeting.

How long from the HD-SDI camera to your DVR? Was it good, OK at the time of installation? I mean that the system starts getting the trouble recently?

redspc, Do you observe the same artifacts when you watch in real time live view, not playback from recorded files?

A 3MP camera would generate about 10 Mbit per seconds for its compressed bit stream, 30 FPS real time for its main video recording. You also have options to control its bit rates, by lowering its recorded video quality as a trade off. They may be providing another bit stream -so called, sub stream for much smaller bit stream for a reduced frame rate & smaller video size. That is useful for remote viewing over a public, wide area network environment.

Maybe a huge project. Please check and review viewtopic.php?f=15&t=39884. If OK, you can leave PM to me.

I do confirm that you can keep using the DVR which can record CIF, as long as you like it. 700 TVL camera would feed a rather good quality video to the DVR. But do not expect to get a lot better video quality, because CIF is too small for improvements. Also note that No supports or upgrades can be made for such a lower end DVR, I guess.

@ Coolie 11; I have indeed tried the eyemax software and it doesn't work. Eyemax drivers are not accepted (windows) plus the program does not see any card. @ SunnyKim; It could well be, i have no idea how old this card is. @ MindTwist; Have tried the BTWinCap drivers. Windows sees the chips but cannot start. I suspect it's because of the pci to pci bridge driver which is missing. Furthermore i have indeed bought a new card for this pc. Anyhow the pc works fine and is more than perfect for the job it has to do. Most of PC capture cards have to support Windows. If not, what are they for? Your board carries 4 Video Decoders and PCI bridge chip, that met End Of Life, more than 15 years ago. Nowdays one chip handles all of them and supporting network access, and 64 bit mode.

Just, If you are experienced or to become involved with CCTV industry, then contacting China/Taiwan/Korea could be your choice. If not, local dealers could be a lot better choice.

No problems as all analog cameras output D1 or 960H resolution video. But old days most DVRs were to record those bigger video data into smaller sized video, say CIF resolution, because the compression engine was not powerful enough to handle the D1 or 960H, bigger sized resolution. And HDD was also expensive.

That could be more than 10 years. Good chances of some of miscellaneous components could be broken. Buy a new card-4Ch -960H resolution. It is worth the money.

I worked Samsung before. That's why I know. They do not try even to look at Youtube.

With SDI, mega pixels of raw video data from your HD Camera can be transferred to your DVR, where compression(Main and SubStream) & recording is done. If the DVR is connected to Network, you can see the video from remote. SDI interface was in origin, designed for broad casting studios, but being also used for HD -CCTV. On the other hand, IP camera compresses pixels of raw video data then send the compressed bit stream over network LAN cable to NVR or video server, where being stored to HDD, and decompression & displaying is done, when needed.

Good choice. Samsung has a very tight quality control over its products.

Do you observe the same problems when you plug the camera into TV?

These days, either IP camera or (Analog camera + DVR) can pass over the your criterion very easily. It is up to you. But when you buy IP camera, you may need to make sub-stream to be also sent over the network and main stream for recording.

20 Mbit per second is the max bit rate that the chip set employed can handle with its embedded CPU. The reading & parsing will be done by the CPU. Of course it was tested and confirmed with real video sequences. 8 Mbps is good for 3 MP camera, maintaining studio quality, though depending on the scene content. But note CCTV is not a movie at all. The contents are mostly static and not changing much. You may try with a couple of days experiment, yourself. If you do not like video quality, just give more bits. You may go for variable bit rate option which gives almost constant video quality according to a given quantization parameter.

When I said "I" frame interval to every 25 Frames, that means one I frame per every second, as PAL has 25 frame rate. Targeting 2 Mbps is for a good video quality for recording, and should be OK for D1 size video data from an analog camera. You can try one I frame per two seconds but that would not make differences, I guess. I am quite puzzled because clean on TV means the camera is innocent, though a TV has a good video decoder in side. But such black stripe can not be cured, even by the best TV in the world.

TVL number indicates horizontal resolution. 480 TVL could be very old. The more TVL, the newer sensor. It is highly likely to carry the newer & advanced image signal processor at the back end chipset for the analog camera. As to DVR side, not camera, where compression and storing is taking place, D1 is the conventional video format, around 720 Pixel Width X 480 Line or 576 Line. The newer one is 960H (960WX 480 or 576 Lines), wider(33% more resolution) than the conventional D1. To me, the deciding factor of analog video quality is the Lens, as long as TVL is over 640 TVL.

1000 TVL sensor means one of the newest sensor. It is highly likely to carry the one of the newest and most advanced image signal processor as a back end chip of the analog camera. Your DVR is supposed to compress the live video data from each camera, correct? Constant Bit Rate 2 Mbitps per each channel presents a very good recording video quality for analog camera. But note that I frame takes a lot of bits for compression. If you set I (intra coded) Frame interval to 2, it can easily reaches over max assigned (2 Mbps) bit rate. So the Compression chip would try to reduce the bit rate for meeting the budget. leading to such Black Stripe. You can relax to 25 frame interval. Let's see!! Is it true that the picture is taken from play-backing of your compressed bit stream from recorded file? The TV view is being done on the live pre-view directly from camera? Then the problem can be explained. But this does not explain the fact that other cameras are OK and fine. Other cameras are assigned to other bit rates?

As TV-View is completely OK (No Black Horizontal Stripe), the output signal from the Sensor and image signal processor chip of the camera is free of such issue. That's why it puzzles me.