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Because explosion-proof high-definition cameras are currently the trend of the monitoring industry, we must also choose IP explosion-proof network surveillance cameras when designing and constructing monitoring projects.
The biggest difference between the millions of explosion-proof high-definition cameras and analog cameras is that the picture quality of playback screenshots has been greatly improved. The original resolution of conventional analog cameras is not high, and the video impairments such as repeated A/D conversion, electromagnetic transmission interference, and composite video deinterlacing of D1 pictures have been compromised, and the effect has been greatly reduced when they actually reach people's sight, so whether it is D1 or 4CIF Such as theoretical values, in practical applications, the definition can not reach the level of theoretical values; Second, the traditional analog color camera to capture the vertical resolution, PAL standard under 625 lines, after the blanking 575 lines, up to 540 lines is already The current limit, when transmitting to the back-end device DVR, the acquisition chip in the DVR can only process 768 × 576 resolution pixel images, about 400,000 pixels, and the playback screen shot is only about 400,000 pixels at most, so the case occurs. It is difficult to identify people's faces through screen shots.
According to the survey, the total market for network cameras in 2013 was about 500,000 units, and in 2014 it is expected to reach 800,000 units. Which megapixel network camera's growth has played a decisive factor. The future of high-definition cameras will become the mainstream, which will further stimulate the development of related digital security products. With the development of the Internet era, the clear images captured by high-definition cameras, smart identification technologies, and automatic tracking technologies will provide reliable protection for people's lives and production. Localization of high-definition cameras will surely bring high-definition surveillance. universal.
The biggest difference between the millions of explosion-proof high-definition cameras and analog cameras is that the picture quality of playback screenshots has been greatly improved. The original resolution of conventional analog cameras is not high, and the video impairments such as repeated A/D conversion, electromagnetic transmission interference, and composite video deinterlacing of D1 pictures have been compromised, and the effect has been greatly reduced when they actually reach people's sight, so whether it is D1 or 4CIF Such as theoretical values, in practical applications, the definition can not reach the level of theoretical values; Second, the traditional analog color camera to capture the vertical resolution, PAL standard under 625 lines, after the blanking 575 lines, up to 540 lines is already The current limit, when transmitting to the back-end device DVR, the acquisition chip in the DVR can only process 768 × 576 resolution pixel images, about 400,000 pixels, and the playback screen shot is only about 400,000 pixels at most, so the case occurs. It is difficult to identify people's faces through screen shots.
According to the survey, the total market for network cameras in 2013 was about 500,000 units, and in 2014 it is expected to reach 800,000 units. Which megapixel network camera's growth has played a decisive factor. The future of high-definition cameras will become the mainstream, which will further stimulate the development of related digital security products. With the development of the Internet era, the clear images captured by high-definition cameras, smart identification technologies, and automatic tracking technologies will provide reliable protection for people's lives and production. Localization of high-definition cameras will surely bring high-definition surveillance. universal.
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