All CCTV storage devices have some form of video compression to reduce the total amount of hard drive space required. The uncompressed video source involves 158Mbps for a 4CIF video camera and even more for High definition or Mega Pixel security cameras. How the camera manufacture compresses this varies from brand to brand. With H.264 being the most widespread compression used, the use of this isn’t the same for all cameras brands. It’s because H.264 is not a fixed compression standard. It’s simply a set of methods to select from to sample the video in alternative ways.
Puzzled?
Visualize you might want to carry a big timber vintage display case from Oz over to The united states however, it has to squeeze into 1 m square boxes for moving. You’re able to use as many as needed. Inside your tool kit are standard tools like hammers, screwdrivers and saws that everyone can make use of. Also in there happen to be less frequent tools that require far more competency and technique to use such as a plane and a couple of chisels.
Manufacturer one decides on the fastest method that requires the least qualified employees to fit the display case in to the boxes. The 10 employees use the hammer and screw driver to break the display case in to large parts that fit in the containers. Each box has plenty of unused space and 20 containers are required. When they reach America, 1 container had been lost. This display case ended up being put back together however as it was roughly deconstructed, a lot of the parts do not fit back together correctly while others are missing. The end result is a display case but it really looks terrible.
Producer 2 has employees with some more experience but therefore they do cost a little more. Their 10 workers carefully disassemble the display case using the screwdrivers, hammers and saws. Every single piece is cut to slip relatively well within a box with minimal spare space. These people have the display case 90% packed before a courier appears but have to rush to cut the lower sections to fit and as a result, the last couple of pieces are a touch rough in comparison to the rest. Only 8 cases were required so the courier invoice ended up being cheaper. The reassembly seemed to be pretty good. There were clearly a number of noticeable lines where the parts had been cut but at the bottom where it was rushed.
Manufacturer 3 is made from a group of highly experienced individuals with many years studying their skills. They knew the way in which to pull the display case apart and through utilizing the precision tools were in the position to ensure all the sides along with fine details were kept in excellent order. In addition, they had two groups operating together. Group A performed the top while team B do the bottom. Given that they had twice as much manpower along with the skills, they were able to get the containers loaded effectively, eliminating lost space and with enough time to book it with the early courier with no pieces chipped or lost. They only needed to send five boxes, which made the courier happy as they could ship some other clients orders simultaneously. In The United States, the boxes showed up early and were able to be easily reassemble in a really small space of time. The display case looked awesome !
Now I’m positive you’ll have figured out the relationship of this story to video but just in case …
The trip from Queensland to The United States is the computer network.
The staff are the compression algorithms functioning in the MPU. More employees means much faster final results and having 2 teams is like tandem processors providing a much faster delivery or much less latency. The more experienced workers are the motion search algorithms that analyse where reductions can be produced.
The Tools provide different activity search formulas. The hammer is very straightforward and only smashes the video into pieces with very little care for conserving the fine detail. A screwdriver allows you to work with some of the finer features nevertheless remains to be somewhat rough for fine details. A saw means that you can precisely slice the sections but with a number of tooth markings around the edges. Using a plane and chisel along with the above will allow much finer detail to be preserved but required the skills to use them.
The boxes characterize bandwidth along with storage space. More containers implies more cost linked with transport and storage area. Also the prospect of loosing some in transportation is greater. With less boxes, there will be spare bandwidth and the IT division are content.
So given that you’re all specialists in antique carpentry and transportation, go and look a lot more carefully at the way your camera or Digital video recorder compresses it’s video.
Are you wanting: Great video images with 50% less data transfer without any noticeable latency but often more costly per camera. Video that is a little blocky when a person walks through the scene. May have reduced bandwidth however, if it is a PTZ, the bandwidth sky rockets and the image quality reduces. Also it has latency problems. An image that is perfect if there is absolutely no activity in front of the camera but the data transfer remains to be excessive all the time as well as the latency being horrible. Yet you saved some funds in the deployment.
Over the past 22 years Tim Norton has been designing video surveillance systems and has created a reputation for providing quality advice on how to improve the quality of your security cameras. He also writes custom software integrations for IP CCTV products.