Fog camera concept analysis

What is the difference between the main function of a fog camera and that of an ordinary camera? As the name implies, the fog-blower camera is a camera that can penetrate the fog and collect clear images. However, in terms of practical application, this “permeability” can also penetrate dust, water vapor, small obstructions (such as slight contamination of transparent covers and rain). Ordinary cameras in these harsh environments will suffer from a significant drop in image quality or even fail to capture images of surveillance targets. Fog cameras are often used in these situations.

When did the history of the fog camera come from? The fog-mist camera is a professional camera developed in recent years. The earliest fog-transmitting system has only the electronic part, and it is precisely the image optimization processing system. The back-end PC mainly performs the limited optimization processing on the blurred image to reproduce the scene. With the development of DSP technology, people once again made the image optimization system on the PC into a single running program and solidified it into the DSP chip. This is called digital fogging because pure digital fog will not change the color. Also called color fog. This is the bud of the fog camera, but the improvement of the camera by this camera is very limited. Later, with the continuous exploration of optical systems, scientists discovered that different wavelengths of light have different penetrating power in fog. Researchers have applied this feature to the lens to selectively allow certain wavelengths of light to pass through. The image quality was better than that of a normal lens, so a fog lens was born, but the price of the fog lens was very high. In order to reduce the cost, the researchers transplanted this optical system to the camera. From then on, ordinary fog lens As long as you use with a fog camera can also achieve good imaging quality, which is the origin of the ordinary fog camera. However, at this time, the fog camera is still very expensive compared to the ordinary camera. At the same time, the inconvenience of operation makes the ordinary user prohibitive. Since then, the development of the fog camera has encountered a bottleneck and has stagnated. Until Anyvision launched a full-blown intelligent fogging technology to break the mess, it began to popularize the fogging system.

What are the differences in the structure and function of the fog-through cameras introduced by each brand? The fog-transmitting cameras introduced by major manufacturers are mainly evolved from the fog lens. The difference in structure and function is not obvious. It is similar to the fogging image quality. Generally, it mainly includes digital image enhancement systems and optical images. The processing system, but these two systems are operated independently, do not affect each other, so most of the fog-mist camera systems often specify the RS485 remote control function when bidding. This means that the administrator must pay attention to the change of the monitor image at every moment. When a single person manages a large monitoring area (multiple images), it is even more embarrassing because people cannot pay attention to the details of multiple monitors at the same time. , resulting in many times the lack of important images. Some administrators open the fog-transmitting mode for a lazy 24 hours, but due to the optical characteristics of the fog camera, the colors are almost completely lost. This is unacceptable to some customers. This embarrassing situation was not broken until the launch of Anyvision's fully automatic intelligent fog camera. Anyvision creatively added a system-intelligent image analysis system to the fog camera, and conducted a large number of actual sampling and simulation of various real environments such as fog, dirt, rain, etc., and adopted a fuzzy intelligent image analysis algorithm to carry out images. Analyze and determine, combined with high-performance DSP, difficult to grasp the fog camera, difficult to operate, poor fog and other ills wiped out.

In practical applications, Anyvision's fully automatic intelligent fog-clearing camera can be put into use as soon as it is simply adjusted according to the site environment during the initial installation. And stable operation. Due to the automatic fogging mode, the camera automatically analyzes the image for fogging or water vapor, dust, dirt, and other abnormalities and opens the preset fogging mode in real time, and intelligently links the digital image enhancement system with the optical fogging system. , to ensure that the image is clear and thorough. Since then, monitoring administrators no longer need to keep an eye on the screen 24 hours a day, which greatly liberates manpower and allows the actual monitoring efficiency to improve several levels.

In recent years, with the increasing demand of end users for image quality, the camera market has gradually shifted from the homogenous low-end vicious competition of the past to differentiated and personalized development. Segmented markets include ultra-low-illuminance cameras, ultra-wide dynamic cameras, license plate cameras, and fog cameras that respond to end-user professional products in different fields. Among them, the fogging camera has the highest technological content and the largest profit margin. However, ordinary manufacturers cannot penetrate this market because of insufficient R&D capability or lack of funds. At present, only a few specialized manufacturers in the world are involved in this field. Today we will talk about the technology and application overview of fog cameras.

Where is the application of fog camera? How big is it? The earliest applications were mainly in the military, which made up for the limitations of the thermal imaging system and won the favor of the military with a clear and thorough picture and perfect imaging site details. With the rise of environmental protection awareness, many countries have attached importance to forest and hydrological monitoring systems. Fog cameras have obtained a very suitable application and have begun to develop rapidly.

Fog cameras are widely used in forest fire prevention, hydrological monitoring, coastal monitoring, border defense, battlefield investigation and observation, oil and gas mines, ports, city monitoring, road monitoring, aerospace and other occasions. With the continuous advancement of modern network technologies and remote sensing technologies, and the continuous reduction of costs, fog-fog cameras will be applied more to the civilian market, such as the active safety defense of vehicles. In the future, the fogging function will become a widely used function as an ultra-wide dynamic function.

What is the difference between "true fog" and "dummy fog" cameras on the market? Due to the digital fogging and optical fogging costs, there are huge differences in the imaging quality. Some unscrupulous manufacturers are trying to use the filter switching device to change the grayscale and contrast of the DSP, and then steal the video file of another home. When sold through the fog camera. Such cameras are often just a few words, Anyvision fully automatic intelligent fog technology, because of the complexity of the simulation algorithm, high technical threshold, to a certain extent, hit the poor manufacturers of counterfeit imitation.

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