Currently, with the gradual popularization of LED displays in performances, studios, and other applications, LED displays have gradually become the mainstream of virtual shooting backgrounds. However, when using photography and camera equipment to capture an LED display screen, the imaging image may sometimes have different grain hardness, which affects the quality of the image.
In actual use, Moore’s pattern and scanning pattern are easily confused by users.
Moore’s ripples (also known as water ripples) exhibit an irregular arc-shaped diffusion state; The scanning pattern is a horizontal black stripe with straight lines.
So how can we solve these virtual shooting “hard wounds”?
Moire
The irregular water ripple pattern in the imaging image of an LED display screen captured by photography/camera equipment is commonly referred to as moire pattern.
Simply put, moire pattern is a pattern like phenomenon that occurs when two grid shaped pixel arrays interfere with each other in terms of angle and frequency, causing the light and dark parts of the grid to intersect and overlap with each other
From its formation principle, we can see that there are generally two reasons for the formation of moire pattern: one is the Refresh rate of the led display screen, and the other is the aperture and focus distance of the camera.