HIGH RESOLUTION CAMERAS CREATE BANDWIDTH ISSUES
As camera resolution rises in security industry, so does the network bandwidth requirement. A contemporary video surveillance system should be fully managed remotely and all the advantages of multi-megapixel cameras should be utilized real-time in the remote monitoring room. Common analog CCTV systems can work normally through standard bandwidths. On the other hand multi-megapixel video surveillance systems requires much more bandwidth, that creates certain issues. Increasing the bandwidth with such an extent is unacceptable as it would raise the system cost unrealistically. Thus it is important in case of a multi-megapixel surveillance system to produce only an acceptable amount of network traffic.
ANALOG VIDEO MONITORING SYSTEMS
In case of analog video monitoring systems the resolution of the image displayed in the video management software is usually the same as that of the camera (25 KB/image). Therefore digital zooming does not provide further details and visual information and results only a massive pixelization in the image.
COMMON MULTI-MEGAPIXEL VIDEO MONITORING SYSTEMS
In multi-megapixel video surveillance systems the real size of the images produced by the cameras are much higher than the monitor resolution. One can get additional information and detail by digitally zoom in the image. In order to achieve this the system must transmit the multi-megapixel pictures in full size to the monitoring site (approximately 500 KB/image or more). To perform the transmission of the increased amount of data, a significantly wide bandwidth network is required.
LOGIPIX MULTI-MEGAPIXEL VIDEO MONITORING SYSTEM
Generally if only a limited bandwidth network is available then the transmission of multi-megapixel images can be performed only at a very low frame rate or not at all. Good news that LOGIPIX solved the problem as our engineers developed Logi-Zoom, the hardware driven zoom function. This extremely cost effective solution efficiently utilizes the scalability of the JPEG2000 compression standard. It allows to send only the currently required, zoomed picture area in high resolution (approximately 25 KB/image section), with the rest of the image being sent in a lower, screen optimized resolution (25 KB/image). This function can be used both in live and archive modes.