When buying the PTZ conference cameras, We often hear HD1080P or 4K UHD. Millions or 2-8 megapixel cameras. So what do they refer to? What is the difference between them?
Usually the resolution of FULL HD 1080p is 1920×1080, it means that 1920 horizontal pixels and 1080 vertical pixels. 4K ULTRA HD resolution has 3840 horizontal pixels and 2160 vertical pixels.The horizontal and vertical pixels of 4K resolution are twice that of 1080p respectively, so the resolution is 4 times that of 1080p. 1080P is the 2 or 3 million pixel camera we often hear, and 4K is the 8 million pixel camera.
Because 4K has a higher resolution than 1080P, the corresponding 4K brings a clearer and more delicate picture than 1080P HD. A 4K TV that can receive, decode, and display video signals of the corresponding resolution supports 120p, 60p, 59.94p, 50p, 30p, 29.97p, 25p, 24p and 23.976p, with a total of 9 frame rates.
The current code streams required for different definition videos are as follows:
1.The code stream required for 4K (Ultra HD) source is 10M
2.The code stream required for 1080P (full HD) source is 8M
3.The code stream required for 720P (ultra-clear) source is 4M
4.The code stream required for 480P (HD) source is 3M
A problem encountered during the customer’s use is that the customer said that he was using a 4K camera, but the picture displayed was not clear. Why?
1.High-definition video can only be displayed through a 4k monitor, and the resolution of the monitor can’t reach it will also cause blur;
2.The collection process of the front end of the camera is not clear, for example, the lens is foggy or dusty;
3.The compression ratio of the video during transmission is too high, and there is a situation of packet loss and frame loss；
4.4K video requires a special decoder for decoding. If the decoder does not meet the standard, the camera picture will be unclear.
WODWIN 4K PTZ Camera WIN-M42K resolution is up to 4K60FPS ,it widely used in Online-education, Lecture Capture, Video conferencing, Tele-medicine, etc.
If you want to clearer picture quality,4K camera will be more suitable for you.If you want to know more about 4K camera, welcome to contact us email:sales@wodwins.com
