Video conferencing camera lens distortion problem
May 21, 2018
Video conferencing camera lens distortion problem
Lens distortion is a difference. The diameter of the object becomes curved after the lens is phased.
Distortion is due to the fact that the magnification of the lens changes with the angle formed between the beam and the major axis. The farther the light is from the spindle, the greater the distortion, but if it is orthogonal to the spindle and passes through the spindle, no distortion occurs. Magnification is called positive distortion when the magnification increases as the incident angle increases. Magnification is called negative distortion when the magnification decreases as the incident angle increases.
In other words, if the farther the object point is away from the optical axis, the greater the magnification, the more positive distortion will be produced. If the object point is farther away from the optical axis, the smaller the magnification, the negative distortion will occur. Especially when the refractive power of the lens is large, the distortion of the image becomes severe. As a result of the distortion, looking at the object, like losing the original correct shape. The method of reducing distortion is to change the lens shape of a single lens, and using the best shape can minimize the distortion.
