Common network cameras can be roughly divided into two categories: one is a hybrid network camera combined with video processing and network transmission modules; the second is a common pure digital network camera. The implementation mechanism of the hybrid network camera needs to go through two analog-to-digital conversions, and its highest image quality is D1; the implementation mechanism of the digital network camera is to directly convert the A / D analog signal to the network signal, which greatly improves the conversion efficiency The picture quality is high, so although the pixels are high, the occupied code stream is not large, and its network applicability is better.
The trend of the times is constantly flowing forward. In the era of analog surveillance, issues such as sharpness, blurred images, snowflake effects, noise, and whitening of the image often occur. In the non-security field, there are digital cameras, computer cameras, and mobile phone cameras with millions or even tens of millions of pixels. Analog monitoring products can no longer meet user needs, so high-definition has become a great demand concept in shopping malls, making it more valuable. In the trend of high-definition, people continue to improve their monitoring needs and manifestations. Network cameras have begun to develop in a deeper direction of high-definition and intelligence, which will also become the development trend of future network cameras.