What does Xiaomi's mobile phone camera mean by shifting axis?

In photography, the shifting lens is used to shoot.

According to Baidu Encyclopedia, axis shifting of Xiaomi mobile phone camera mainly refers to the use of axis shifting lens in photography technology. Shift-axis lens is a special kind of lens. By adjusting the optical elements in the lens, the shooting angle can be changed, so as to achieve the effect of adjusting the perspective relationship of the photo. This technology is often used in architectural photography, macro photography and other fields, which can effectively correct the perspective problem and make the photos more beautiful.