Why does the full-color LED display have to use the video processor? It is no exaggeration to say that the quality of the video processor directly determines the display effect of the full-color LED display. The following is the main role of the LED video processor.
1. Motion compensation
Motion compensation for slow images and fast images. Good motion compensation technology can well reduce the edge aliasing of moving images during full-color LED display.
2, deinterlacing
Video signals are better for reducing bandwidth, so increasing the resolution requires interlaced scanning. Full color screens require pre-processed signals for interlaced signals. It is good to handle interlaced scanning technology and eliminate the effect of line drawing during live broadcast and shooting.
3, zoom
Full color screens are typically modular and spliced, as they are the most flexible display of all flat panel display media. However, this product has some drawbacks, that is, the flexibility will be slightly slower, especially the display resolution of each engineering application is difficult to find in the standard. Therefore, the video processor is especially required to provide a zoom function.
4, the image is reduced
In general, the dot matrix resolution of display engineering applications is below (1024*768). The video processor is required to reduce the respective signals accessed to the resolution of the corresponding terminal, and the video processing device is required to have a pixel-by-point pixel scaling function.
5, image enlargement
Due to the rapid development of more and more engineering application advertising volume, the resolution of full-color LED display is no longer limited to the conventional resolution, and some engineering applications even reach the level of 2048 points in these applications. The video processor needs to have image magnification processing technology, and the internal processing bandwidth of the video processor can reach or exceed the dot matrix area in atypical applications.
6, noise suppression
Due to the dot-matrix characteristics of full-color LED display, the insignificant noise in other flat panel display media will greatly challenge the LED to show the audience's psychological tolerance. The noise mainly comes from the compression noise of the video signal and the random noise of the system itself. The excellent video processor can suppress the interference of the image quality itself by noise suppression.
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