SunnyKim

You keep repeating the same thing for those new comers. The op complains the quality-low lighted performance- of his 720P HD camera. You keep claiming that those Chinese brands are far better, as if you are getting paid by them. It seems to me that 720P would render the best performance, if placed under the same condition. Why? 720P would use the Same Image Sensor as 2 MP or 4MP or 8MP or 12MP or even 16MP. How come? Any proof? You can google and read out "OV16880" omnivision for image sensor specification. Please let me add, for the night -low lighted - performance, 720P would be the best while 16 MP could be the last. That's the fate of CMOS image sensor. Low price rules out, Principle. Low lights per each sensor cell. Too small to form enough electronic voltage level, even smaller than electric random noise level. Bad Poor Video Image. But by binning together with neighboring sensor cells, it can render good levels of voltage. So 720P could render the best, but others losing its true fidelity for their claimed resolution. As to Compressionand Image Processing, they will be using TI chip or Hi Silicon's chip set, if you open the box of your IP cameras. Your brands of HikVision or Daihua are most likely to use the same chipsets, sensor and SoC, and even with the same SDK. Of course, Other Camera suppliers-unbranded- are using the same chipsets and SDK for their own products. You can check by opening the camera boxes. You are highly likely to pay extra dollars to those Brands. But Sure Waste, if you do not get any tech supports from them. I would even recommend Counterfeits could be OK as long as you get the supports when needed. Save Pennies for you and your customers.

No proof on 1000 times better. 1000 is the number that you cancount. If you think you handled lots of IP cameras, open the box and check out the supplier of sensor and main CoDec chip set. Then you would be glad to understand what I am saying.

You may use "cat5" for AHD cameras, but RG59 cable recommended. Why baluns? I do not like to put Baluns at both ends. Why at the camera's end?

It is very true that night performance of CMOS sensor has a lot improved. But there is no reason for Hikvision or Daihua cameras should be good or better. As other brand cameras, they are using the same chip set, image sensor, the Software Design Kit. How can they differentiate each other? The first comes application software and its GUI. The tech support should come second. If you do not get the tech support easily from them, why pay extra dollars to those Chinese brands.

That's short comings of CMOS based image sensor when lights are not suffcient enough. CMOS has become so cheap, killing a better night performing CCD based sensor off the market.

Please allow me to correct some points posted above. HD-CVI, HD-TVI, and HD-AHD employ amplitude modulation when sending HD video content from camera. In order to be squeezed into a limited bandwidth of Coax Cable and its length, some may apply Low Pass Filtering to the original video content, slightly killing sharp details. Color components are mostly affected by such a limited bandwidth. It is very true that de-modulating and reconstructing video data back are to degrade the orginal quality, for sure. By the way, HD-SDI sends the original video data in a digital way, so called SerDes. No compression or No Degradation. Of course losing Video Sync at times. But it could be received and reconstructed as exactly captured at the camera side. HD-SDI is employed by TV Broadcasting Companies. CCTV industry also started to use HD-SDI for HD Class Video Source, say 720P,1080P. By far the Best Quality, no compression whatever. HD-SDI camera is cheaper than IP Cameras because the video compression is done at the HD-SDI-DVR. As long as your IP address is known, its data security can not be 100% proof, for sure. You can see some pass-words are shared in this forum. Truth is that most of IP cameras and network switches are from China. Even Pentagon is not Safe. You can also find guys in this forum who keep promoting Chinese IP Cameras, helping to form a scary Monopoly.

Very interesting to learn that, in UK, they regulate 7 FPS for cash area. Do they also regulate 4 MP in stead of 8MP? I like to hear your comment on " How much they should pay for Play Back real time for Spot Monitoring, for their 8Ch or 16 Ch IP Cameras of each 4MP resolution?" My point is Why Pay More ...

Go and check CMOS sensor engineer at Aptina. 4MP and 720P uses the same image sensor. 4MP simply increased number of pixels. That's why its night (low light) performance can not be as much as expected. But Good because they can charge more. Why pay more... I do not understand 4MP covers more area than NTSC (VGA) camera.

It is good to have such luxuries. 4 MP IP Cameras. Good for show off. Good for revenues and Profits, for Good Installers. How much they should pay for Play Back real time for Spot Monitoring, for their 8Ch or 16 Ch IP Cameras of each 4MP resolution? They are Not Even close to 30FPS in real time, play back or recording. Some managers like to see what's going on in Kitchen or Parking lots, in real time, on one or two monitors. If going for IP cameras, I like to recommend 720P IP cameras which employ the same CMOS sensor as 4MP's and its price has dropped to the rock bottom, well less than a half of 4MP or 3MP's. Why pay more?

I can recommend cheap analog systems. If you can pay a bit more, HD systems with 720P cameras are OK, HD TVI, or HD CVI, or HD-AHD. I do not want recommend IP cameras, which are a lot expensive. Why pay more...

NVR, according to your term, sounds the cameras are IP cameras. Check how these cameras and your NVR is connected, ethernet cable or bnc cable? But the PC card expects analog NTSC cameras to be hooked on.

Search & Read "port forwarding" in many threads posted in this forum.

That's a very old capture card that requires compression and decompression by software PC. No idea blue iris software handles Compression of video sequences provided through PCI bus. If you have special preferences sticking to such cards, you may buy a new one, less U$40 on the internet. It would provide you 4Ch X WD1 at 30FPS, much better video quality than the one you have. They provide remote access over smart phones and internets, as well.

If you are to use a dedicated 1,000 Mbits network, the throughput is not always 100%. Even 30% assumption could not be sufficient. You may have to write/read the stream files many times, depending on your system configurations. I do not think any PC based sofware can, so far, decompress and display more than 16 Ch X 1080P X 30FPS (realtime) on a prime PC. Some may claim 24 Ch / 32 Ch, but its CPU usage could be on 70 % over, leading to unstable system operation. Some tricks can be decoding CIF based substream, therefore increasing number of channels that a single PC can handle. I do not think you can get the project done - with off-the-shelf components. You may need eng staffs, supporting the project. The project can be min U$ 1 Mil. Just like Boogieman says, you have to consult Acti first.

As far as I know, Daihua has the only one that supplies its HD-CVI receiver chip set and controls a few HD-CVI DVR makers. I believe that the HD-CVI DVR can also handle (receive) the conventional anlaog camera (NTSC,PAL) and, at the same time, HD-CVI camera output through BNC cable. So, I do not disagree to your selection.

1. Another bottleneck could be the bandwidth of Network, HDD, and SSD. Supreme quality of recording video - 1Ch X Full HD (1080P X 30 FPSX H.264) need 8 Mega Bits Per Second, as a safe side, for compressed bit stream file. We learned these would place a limit on how many channels can be allocated, Max, to each PC. 2. Check out commercial graphic card, say nVidia, that can drive 4 Monitors per each PCI-E slot of a single PC.

I do recommend 720P worth of the Money. Do D1 or 960H as well. I do not agree to recommend a cannon or missile for killing a roach. I do not like the idea of scaling down the 4MP-reconstructed video back into 2MP monitor display, at most, just for zooming back purpose. Too much hardware/software extra expenses, as said. Being disgusted to hear barking on 4MP, knowing that, all of sudden, starting to move on 5MP/6MPs. Las Vegas /Bank/Jewelry shop like to have Much Higher Frame Rate to capture a quick hand. Not all the people enjoy 2MP monitors for CCTV applications. Here goes Today's post. viewtopic.php?f=5&t=47507 OK, OK. I have to tell you there is a conspiracy going on. Monopoly. The effort happened and got deterred, as in case HD-CVI (Daihua Started) and HD-TVI(HikVision launched its counter part), and another AHD pooping up. No standard, not comparable each other, All becoming losers. I think 3MP /4MPs/5MPs/6MPs/7MPs... are the second round of wars for Monopoly. The premium sensor makers do not pay much attention to IP cameras, simply too small market. I expect they would focus on 8 MP sensors for UHD, just as they did for Full HD (2MP). But some dogs are employed to keep barking on 3MP/4MP/5MP/6MP/7MP..., without knowing when to be ordered to stop.

Good chances are 1000 TVL can render a better video than 540 TVL, because it is new and improved. All these are analog cameras, capable of D1 or 960H resolution. But your old DVR may be limited to CIF recording. You may buy a new analog DVR, less than U$40, capable of D1 or 960H recording. If you do not like the quality, you can buy a HD-analog DVR and its paired HD- analog cameras, if you pay more. HD-analog DVR are kinds of HD-CVI, HD_TVI, and HD-AHD.

I am quite against recommending 3MP/4MP CCTV cameras that are not capable of 30 FPS. Their low light performance is No better or Worse than 720P. They are made of the same image sensor -CMOS type- as 720P Camera, as said many threads. Say, if I pick one, viewtopic.php?f=1&t=47534. A frame of Video needs be recharged or refreshed in 33 mili second for 30 FPS. The time interval for accumulating activated electrons into sensor cell is too short for low lighted condition. How to solve this? The one way is to simply drop frames, increasing time intervals for digitizing electron level sufficient of the sensor cell. Another way: Increase the censor cell size to receive more lights, thus being reduced in number of pixel resolution (4MP to 1MP, no marketing people like this idea). The 3rd way is Keep the same number of sensor cell (4MP) but mathematicallly adding up the electrons, but boosting the noise level at the same time, in order to improve low light performance of 720P, though. This is the path sensor industry seems to have taken. It is relatively easier to embed more cells into a unit area, claimable More Pixels or Resolution, thus More money. Simply expanding number of pixels places more burdens. More work for back end CPU. More heat and battery power. More bits to HDD storage and More Load to Network. More Buffers even for software solution, leading to tuning its software parameters, more bugs found. More Time Latency and New monitors for higher resolutions. Employing some dogs to keep barking on, 3MP is better, then all of sudden, 3MP is bad and 4 MP is a lot better. We guess in a year that they would bark 4MP is horrible and new 5MP a lot better, and so on. I can not agree to cheaters.

I am quite against 3MP or 4MP or 5MPs, to keep coming on the market. 4MP cameras are using the same image sensor as 1MP cameras. They are charging more expensive than 1 MPs. They simply increased number of pixels, cheating on innocent CCTV customers. It may need a lot years to get 4MP true resolution-high fidelity, available in the CCTV market. I do not think it good to keep promoting 4MP cameras, in spite of the fact many of commercial monitors and large LCD TVs are quite limited to 1024 X 1280 resolution (SXGA).

No Idea what kinds of DVR that you now have, but HD-TVI DVR may work with HD-TVI cameras or analog cameras (NTSC, PAL). HD-CVI DVR may work with HD-CVI cameras or analog cameras (NTSC, PAL). HD-AHD DVR can work with HD-AHD cameras or analog cameras (NTSC,PAL). These DVRs may support analog cameras by default, or not. There may be some video degradation if the cable length becomes longer, say 200 ft.

In my opinion, 4MP cameras image sensor needs be improved a lot, especially for Low Lighted Video Capturing. WDR should be used with a caution that it may also boost lots of noise in case of low lighted. 3D NR (noise reduction) helps a lot to render better quality in case of low lighted. [MOD: unnecessary rhetoric removed]

I learned in other threads you are associated "iptalk". Nowhere to hide. The pictures you showed are not convincing at all. Both are bad even with WDR==OFF, and NR===ON. There seem no ways to justify for the MONEY: Analog CCD cameras seem to do a lot better, please test and you will find. Please stop promoting 4MPs and bashing 3MPs.

Look at the 2mp or 4mp WDR cameras http://overseas.hikvision.com/en/products_159.html 200 feet? forget about it..you will need a serious ptz if you want anything usable at that distance. You are kindly advised not to promote 4MP or Hikvision's Counterfeits.

The software of Hybrid DVR seems to be responsible, not IP camera. Better check out with Daihua.