Method for calibrating parameters of external camera

• Main Authors: ABRAMOV MAXIM P, SIPITKO, OLEG, S, GRIGORIEV ANDREY SERGEEVICH
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention relates to the field of technical vision, in particular to a method for calibrating external parameters of a camera. A method for calibrating external parameters of a camera is proposed in which an image of an environment is obtained from the camera during movement of a vehicle, linear features of the environment are highlighted in the image, the image having the linear features is formed and the straight segments are isolated, and the external parameters of the camera are calibrated. Determining the position of the vanishing point of the selected straight line segment as the intersection of the formed straight line segments by determining a parameter describing a function of a straight line formed by a set of points characterizing the population of these straight line segments; then, the position of the vanishing point is compared with the position of the principal point, and the value of the camera rotation angle is determined on the basis of the obtained deviation, taking into account a focal