The installation and construction conditions of panoramic cameras and traditional cameras are almost the same. However, when it comes to environment, users should pay attention to the following points:
1. surface mounted should be center adjustment
Panoramic cameras celling mount position should be in the center of the area that need to be monitored. If camera installation position is not in the middle, then images will in dissymmetry.
2. Installation should be far away from celling lamps
Panoramic cameras celling mount installation should keep away from celling or the area above the celling lamp. Under the condition of WDR, there is a tendency that the effect of image edge darkness is worse than which in the non-highlight condition. And the light starting transformer frequency is the crime culprit of disturbing cameras images signals, which should be avoided.
3.Air conditioner vent should be avoid
Panoramic cameras installation should avoid air conditioner vent edge or the front area of it. According to experience, when in summer, panoramic cameras lense will be influence by fog after 10 am.
4. Adopting POE for power supply
Panoramic cameras should adopt POE for power supply for single cable is beautiful to look and easy to deal with. If POE injector broken down, the decoration will be damaged, which is not goog at cost maintenance.
5. Avoiding indicator light
Panoramic cameras celling installation should avoid being in the ahead area of emergency exit light, and the ahead area and above area of fire hose red light..
6. Adopting expansion screws
Expansion screws should be adopted when panoramic cameras installing in mineral fiber ceiling. The common screws should be avoid.
Therefore, more points should be counted in when it comes to panoramic cameras. Mastering panoramic installation methods is essential to play its performance.
1. Intelligibility Test
We can simply judge the intelligibility of HD IP cameras by common video image intelligibility (line number) test card. By using this way, we can judge the image intelligibility directly by naked eye. Generally, HD 720P surveillance cameras test card standard can clearly judge the TV line that is over 800TVL. While for the inferior HD cameras, it will be lower, and there is shaking images and deckel edge.
2. Dynamic Range Test
We can simply judge HD image gray scale data by using common video image gray data test.
3. Color Rendition
We can judge HD video image color rendition by color test card or naked eye. Generally, good HD IP cameras has high level of color rendition, which even can reach the level of verisimilar reduction effect.
In the same situation, noise suppression processing is also an aspect to measure HD IP cameras performance. Processing the light and dark block on pictures, noise suppression directly decide image quality.
5. Image Coding Compression Algorithm
The image coding compression of IP HD cameras that directly influence cameras’ performance is one of the most important indicators. Mainly, there are two kinds of HD cameras video image coding compression processing chip, including DSP chip and ASI chip. The two all has disadvantages.