WDR IP Camera best of both worlds with a high frame rate is difficult

I myself have really wonder this gun camera with IP cameras in place at the special general differences? In fact, in the IP architecture, it is difficult to distinguish the difference due to different camera appearance as a result of industrial applications on. Because just on the appearance of the product, it is difficult to distinguish between different types or where the other hemisphere Bullet IP cameras, after the publication of guidance and advice editor, and finally understand the current gun camera focuses Features of the camera and stage trends, in particular the wide dynamic illumination, auto gain, noise suppression performance of an image processing function, and its performance in terms of clarity, control and other aspects of the network need to be assured equally .

High Definition HD gun camera essential factor

No matter what style of IP cameras, higher resolution has been pursuing all its realm, to participate in this evaluation of the IP network box camera is no exception, IP cameras on the market at this stage whether the bolt, semi- Ball machine or IR infrared models, the pixel values ​​are from at least two million, we can see vendors on adoption intentions CMOS Sensor, in addition to Micron's Aptina sensitive programs, more In Sony Exmor and Exmor R CMOS Sensor in a new selection, because the picture quality and frame rate of the different stage of IP cameras of different sizes, most of these sensitive components to the decision, thus we can speculate as using Sony IMX-140 or IMX-185, etc. These high resolution and high frame rate sensitive components can be the way to 2 million pixels to enhance, rather IMX-172 is available will increase to 8 million pixel value, plus 60fps to 120fps with a high frame rate, making gun-camera picture at this stage in the details and color reproduction were upgraded to a new level.

Of course, the most important gun camera is a sensor with high resolution and high frame rate, in addition to the performance of the screen will be little impact with the lens, but there should be a cinch HD high-resolution, high-definition screen plus all are can support different 4:3, 5:4 or 16:9 aspect ratio, high-resolution performance of its natural course.

Can not have both high frame rates with wide dynamic

High definition and high frame rate are both the IP box camera evaluation project, we noticed a particular phenomenon occurring in a measurement process, that is the actual manufacturer in the field of environmental conditions, specific adjustment of the camera Section, a wide dynamic simulation when evaluating the situation, the prospects of the target and the background light is different, in addition to have the difference between static and dynamic, both of which work together to give the gun camera a big challenge, because previously mentioned, IP gun Camera's CMOS Sensor emphasis is on high frame rates, this will make the picture more delicate, clearer picture of a moving target, but the reality is that the IP box camera with a compression codec chips are not always In support of the CPU performance under high frame rate while wide dynamics and real support, that is both difficult to have both, which is due to IP Box Camera Sensor sensor must be able to start the compression chip ISP and the CPU performance can complement each other, otherwise, they can make a compromise on both.

Low-light imaging IP box camera, true or a lie

From the time involved in testing the IP box camera specifications shows that are known to reach minimum color illumination 0.05Lux-0.002Lux under conditions of F1.2-F1.4 aperture, which is why we here Times the performance for IP box camera focus of observation. The focus of the IP box camera is low light, which is in color mode (Day Mode) under low-light imaging detection, not more than ICR-Cut the action starts or not, and day and night Day & Night mode conversion speed, even more than the IR auxiliary lighting after the splash screen can withstand a minimum illumination 0Lux, because As these conditions are not known to be low light.

Seen from the IP camera Image Sensor Gun specifications are labeled as Words such as Super High Sensitivity, tentatively whether it is visible or NIR for Visible near-infrared light conditions, it is unexpected is that we let the camera obscura Measured to 20Lux-7Lux-5Lux-3Lux-2Lux-1Lux-0.5Lux-0.1Lux-0.05Lux-0.01Lux multistage side illumination Be measured style, will also be involved in the testing of all the IP cameras on the set and have to DNR Max on the maximum gain and contrast, brightness and shutter are automatically placed in the initial conditions and the result is that most of the participants The camera obscura illumination 0.5Lux The following screen is already filled with noise and color deviation and picture blur commonly found, this result gives us the actual IP box camera photo effects can not help but produce low Doubt, of course, part of the reason may be because in some low light camera lens with aspherical lens is not IR, so inevitably blur the picture to happen, but actually be able to get a true mirror at F1.2-1.4 Under the head with a camera obscura in the aperture can be mapped to 0.5Lux even lower 0.01Lux are few, and this is because with the new Exmor Sensor caused the rest of the shutter or Frame accumulated other functions seem to equate defeated in this laboratory-grade black box testing.

Say when the IP box camera placed on the test optically absorbing a large camera obscura, and the results very big surprise, Found in the black box section also unsatisfactory performance cameras, night vision to a simulated field test chamber, when the illumination is dark 0.5Lux actually, the target site because of the more complex scenarios, some works Construction behavior so that the screen resolution and contrast is not to be too large, and in the adjustment of sharpness adjustments are excessive, the picture makes the lights all bright overexposed when the contrast is too low according to the big picture is too dark, low light effect was unable to complete Now, poor low light will reveal the truth in front of everyone, this scenario may be a bit harsh conditions, in reality, few and far between, but please imagine a group of IP box camera mounted on a shop doorway, day to evening shop Opposite the mouth when a vendor does not have any screen all clear to normal, but if the door at night after a sudden you put the lights fixed a vendor of business, that scene is not on the line with our simulated scenario? The gun on the IP camera Illumination requirements like monitoring machine so it is not exactly.

Standardization gun camera market to determine the right

END explore these After the feature points of the IP box camera, let us further explore the issue of compatibility and standardization of IP box camera, because regardless of any style of IP cameras, standardization and compatibility are required To seriously. So we have this simple to explain our findings, we all know the IP box camera must comply with ONVIF or PSIA standards, if not also that there are some other agreements, such as Upnp Yee handshake mechanisms that are designed to expand the market and the popularity and versatility of the design. But in this testing IP box camera inside, camera setting options most brands have appeared to GB GB- 28181 standard is a standard option ONVIF compatibility beyond this point from the market side told us that in addition to the global market, China's security market has become a major regional markets IP box camera, while the market Rules also determine the IP box camera need to standardize response to market demand.