Fisheye Image Correction Based on Three-Dimensional Control Field

Abstract

The fisheye image has severe distortions, which is not in line with human visual habits and brings inconvenience to its application. This paper classifies them into spherical structural distortion and optical distortion, and proposes a fisheye image correction method based on 3D control field. First, the spherical transformation radius and the optical center of the fisheye image are accurately solved, and the fisheye image is corrected by combining the spherical perspective projection; then, the distortion model of the fisheye camera is introduced into the DLT model to calibrate the optical distortion, and the results are used to recorrect the image. This method has been experimentally proven to be fast and effective.

Application of Functional Analysis in Solving River Crossing Problems under Dynamic Water Flow Conditions

“…Next, we use the Euler equation [6] to find the resident function of this function: (7) From the above formula we can get: (8) Namely:…”