Correct interpretation of 1080P HD images
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Although all need to display device output, but have to admit that radio and television standard high-definition higher. Today, the resolution of the TV has reached 4K, but the highest digital signal is still 1080P or perhaps only 720P, I do not know how those friends who buy 4K TV feel. Don't be afraid. We can watch Blu-ray discs without TV signals.
4K has just emerged in the field of security, but still the main 1080P and 720P, home surveillance image resolution has reached 720P, then we talk about 1080P, this untouchable high-definition resolution. The resolution of the image is clear or not. It is only one of the aspects. It is also necessary to look at the scanning method—interlaced and progressive.
The progressive scan is well understood. The image is divided into several segments and scanned in the order from top to bottom. The interlaced scan is different. The first scans 1, 3, and 5 odd rows, and the second scan scans 2, 4, and 6 even rows. In two scans, if the image moves unintentionally during the scan, the final image becomes blurred.
It is easy to see through the scanning method that even images with the same resolution may have different effects due to differences in scanning methods. It's not business fraud, it's just that you don't understand the principle. 1080 image resolution is 1920 × 1080 pixels, but 1080i and 1080p are different, this time you understand it!