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There are a lot of variables that affect what you see on the monitor when viewing video playback files from a CCTV security camera system. Frames per second (FPS) are usually one of the first and main considerations when making a system purchase Herren BBC x Adidas NMD Hu Heart Mind Weiß Rot Schweiz , but there are a few things you should know before running out and buying a surveillance system that simply boasts "30FPS!".

Frame rate is defined by how many still images per second are being displayed, and affects how smooth a video appears. If you have a low frame rate of say 7 FPS, you are going to see images that appear to jerk through motion. In some cases, this slightly jerky video is acceptable, but, if you are going for maximum clarity and detail Herren Pharrell x Adidas NMD Human Race Weiß Schwarz Schweiz , it may not be. As the FPS increases, so does the smoothness of the video. The maximum FPS you are going to see in the surveillance industry is 30 FPS, which is about the same number that the human eye can register. Most people will not be able to tell the difference in 30 and 15 FPS, though, because they both produce relatively smooth video.

On most digital video recorder (DVR) systems, whenever you pump up one setting Mastermind X Adidas NMD C2 Suede Pack Olive Grün Schweiz , you are going to lose something in another area. DVRs that advertise 30 FPS per channel are basing that figure on a set image size. For instance, if you get a GeoVision GV800 card that has 30 FPS per channel, that number is based on an image size of 320x240 pixels. On that Geo card, if you increase the recording resolution from 320x240 pixels to 640x480 pixels, your FPS per channel will drop by about half. You would then be viewing recorded video at about 15 FPS. If you increase the resolution again, to 720x480 pixels Mastermind X Adidas NMD C2 Suede Pack Rot Schweiz , the FPS will drop again by about half, leaving you with about 7 FPS, which may be undesirable.

Some of the newer, high end DVR cards are now using hardware to compensate for the loss of frame rate when increasing image size. These are not, however, inexpensive systems. The GeoVision GV-1480A capture card Mastermind X Adidas NMD C2 Suede Pack Blau Schweiz , for example, will allow you to increase the image size to 720x480 and lose only 1 or 2 FPS.

The technology is continuing to advance, and hopefully we will see more affordable, real time recording solutions in the near future. Until then, you have to look at your application, determine what level of detail and clarity you need Mastermind X Adidas NMD C2 Suede Pack Grau Schweiz , and go from there. Remember to always check the maximum FPS per channel and at what resolution that records at. It may be hard to make out subjects at 320x240 or 640x480 pixels, especially at 7 FPS, so if you want a truly effective security camera system, you probably want to up your expectations on pricing, etc, and go ahead and spend the extra money to be truly protected. If you have had experiences where buying higher quality equipment has saved you in the long run Herren Adidas Human Race NMD HU Trail China Exclusive Rot Weiß Schweiz , or vice-versa, please let us! Real world applications provide the true value that allows people to make educated decisions about future projects and purchases, and we really appreciate them.
If the article's title has led you to an assumption that I have an ultimate ?formula? for complete evaluation of Website performance you are unfortunately very far from the truth. In fact such formula does not even exist! There are many different factors that are to be taken into account when assessing Website performance. All I am trying to do in this article is to provide a brief explanation of the main aspects of the Website performance that companies need to concentrate on in order to measure effectiveness of their efforts on the Net.


When my clients ask me to examine their Web sites and give them a complete health-check I usually focus on the on the following 4 factors:


? Informational Content


? Design


? Functionality


? Value Added


Informational Content


Informational content of the Web sites plays a very important role in conveying the company's messages to its customers. Commercial Websites should contain information that the visitors may find useful in their exploits to get to know the company better. If you are buying online from a company you have never heard of before, you would certainly want to make sure that you are dealing with a legitimate reputable business rather than with a group of tricksters who will take your money and disappear in the direction unknown to you. The Website should inform the visitors about the company's background, latest news, products and services offered and excellency awards achieved.


Not every commercial Website is providing customers with an opportunity to make purchases online. Quite a few sites are focusing on the marketing function and they view their online presence as a support network for their existing sales and distribution channels. Whether you are selling online or simply using the marketing capacity of the Web Herren Adidas NMD Racer PK Urban Racing Schwarz Rosa Schweiz , you need to provide your customers with sufficient information not only about the company itself but also about characteristics of the productsservices offered. Consumers need to know what your products are fit for, price, availability, unique characteristics and (of course!) special offers that they can take advantage