A method and device for updating basemap combined with interaction

Abstract

The invention discloses an interactive base map update method and device. The update method includes the following steps: performing coarse registration and fine registration on the panoramic base map and the update image to obtain matching points, and calculating the total number according to the matching points. Transform parameters; obtain the overlapping image between the panorama base map and the updated image according to the total transformation parameters; obtain the invariant area set between the overlapping image and the updated image; determine the color correction parameters according to the invariant area set, and update the image based on the color correction parameters The image is color corrected; the updated image after color correction is linearly weighted and fused with the edges of the overlapping images, and stitched into the panorama basemap to obtain an updated panorama basemap. This method can improve the accuracy of resolution, scale and content registration between the panoramic basemap and the updated image by performing coarse and fine registration on the image, and use the correction parameters to correct the image to reduce the color difference between the images , for a panorama basemap with ideal color correction.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to an interactive base map update method and device. Background technique [0002] In the panoramic video monitoring system, multi-channel network monitoring video data is converted into visualized panoramic monitoring video data, and the spatial transformation relationship between the field of view of each camera and the panoramic base map is calculated to calibrate it to the panoramic map. The camera's real-time video data is embedded in the static panoramic base map, which realizes the fusion and preview of the panoramic monitoring video data, which greatly facilitates the monitoring personnel to observe the spatial position relationship of each camera. [0003] In the actual scene, some areas may change over time, and there is a big difference between the panorama basemap. The left side is the panorama basemap to be updated, the changed area is in the box, and the The co...

AI Technical Summary

Problems solved by technology

[0005] This application provides an interactive base map update method, which can solve the technical problems of inaccurate image registration and unsatisfactory color correction effect in the prior art

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