Explosion-proof video surveillance 720P era officially came

At present, explosion-proof high-definition cameras on the market are more popular with 1080P and 720P resolutions. We can use these two high-definition examples to make a comparative analysis. In the explosion-proof camera industry and even the entire security industry, there is no uniform standard for the concept of high-definition video. Therefore, from the perspective of broadcasting and television, 720P is the format of high-level HD digital television set by SMPTE. The standard is the D4 standard digital television display mode, and the effective display format is 1280×720; while the 1080P is the D5 standard digital television display mode, which is generally 1920×1080.

Technically speaking, 1080P and 720P use a progressive scan method. The actual scan lines for each frame of image are 1080 lines and 720 lines. The progressive scan method can solve the flicker phenomenon caused by interlace scanning, which can provide a clearer and more stable image cage surface. The most suitable human eye vision standard for progressive scan is 75 images per second, but in the explosion-proof camera video surveillance, 30 images per second can already meet the needs of users.

From the perspective of market applications, the 720P and 1080P markets are obviously not on the same plane. 1080P needs 23,24 inch or above LCD screen to be able to watch from point to point, CPU frequency is probably more than 3G, or there is hardware decoding graphics card, this resolution is mainly aimed at high-end consumers and needs product excellence. The 720P market faces a large number of ordinary consumers. In addition to the different positioning of users in the application, the two also have great differences in price. Explosion-proof camera with 1080P resolution needs significantly higher technical content than 720P, so there is a huge difference between the two prices. For the security monitoring field of explosion-proof cameras, the ultimate goal of security monitoring must be clearly seen, and only the videos that are clearly visible are valuable videos for us. However, people often blindly pursue high-definition and forget the particularity of explosion-proof monitoring. This is mainly due to the high-definition stimulating security monitoring of consumer electronics products also rapidly entering the era of high-definition. At the same time, on the other hand, people are also prone to consumerism. Video is regarded as a goal, thinking that any high-definition monitoring is that the higher the pixel, the better.

Currently in the field of broadcasting and television, although the 720P has begun to show a decline, but in the field of security, according to Shenzhen World Technology's Huang Gong introduction, especially in the field of explosion-proof camera surveillance, the prologue of the 720P era can be said to have just been opened, and with the hundred With the increasing popularity of HD surveillance, 720P will become the mainstream representative of the HD standard for future explosion-proof cameras. It competes with 1080P, but it is more of a complementary relationship. The reason for this situation is mainly due to the cost of equipment. And the pressure of transmission and storage links.

It is an indisputable fact that high-definition surveillance has become the trend of chasing the market. It will inevitably occupy an important part of the market in the next few years, but the cost of chasing high-definition will also increase. Therefore, both manufacturers and engineering companies are It is necessary to rationally produce reasonable choices under full practicality. With the continuous improvement of technology, the number of pixels of an explosion-proof camera may increase indefinitely. However, the range of vision that the surveillance video can reach the human eye is always limited. Therefore, the surveillance video information of the explosion-proof camera can make people on a limited screen. It's enough to get valid information, or Huang Gong's saying: The choice of high-definition camera HD is only right, not the highest one.