METHOD OF MEASUREMENT OF TRAFFIC CAMERA WITH RESPECT TO THE SURFACE AND DEVICE FOR ITS IMPLEMENTATION

摘要

1. A method of measuring video camera movement relative to a surface, comprising converting a surface portion of the image in digital form as a sequence of frames, correcting perspective distortion of each frame by finding the relative position (shift and rotation) for pairs of adjacent frames, at which the maximum mutual coincidence of their (correlation), and measuring the magnitude of the shift and image rotation, characterized in that: at the time of formation of each frame is measured intervals between frames, the angles and tilt angles of the camera and the distance from the camera to the surface; ! for each frame build its simplified layout by roughening and filtering the original image; ! correction is carried out perspective distortion models based on the data frames of viewing angles, angles of inclination and distance from the camera to the surface; ! search conducted relative displacement of different images of layouts, at which the maximum of their coincidence (cross-correlation) with the calculation of the offset between these amendments dummies induced change camera angles during recording the corresponding source frames; ! calculating the actual offset surface section, equal to the offset of adjacent layouts Adjusted correction displacement caused by a change in tilt angles. ! 2. A method according to claim 1, characterized in that a simplified building layout, by converting the color image into monochromatic image frame grayscale. ! 3. The method of claim 1, wherein the simplified layout constructed by transforming a color image in a single color by providing one of the color image or combi