Hollow identifier-based method for preserving structure and enhancing real identifier hiding

Abstract

The invention discloses a hollow identifier-based method for preserving a structure and enhancing real identifier hiding. The method comprises the following steps: obtaining a video frame of a to-be-hidden identifier from camera equipment; calculating a three-dimensional position and orientation, relative to an identifier, of a camera according to a two-dimensional position of the identifier; projecting a hollow area mask of a hollow identifier onto a plane where the identifier is located, so as to determine a to-be-repaired mask in a video picture; automatically detecting information of a background structure adjacent to a to-be-repaired area according to the to-be-repaired mask, so as to obtain background structure characteristics; repairing the detected background structure according to the background structure characteristics, so as to obtain a structure repair image and a structure to-be-repaired mask; and utilizing an existing image repair algorithm to carry out repair hiding on a non-structure identifier according to the structure repair image and the structure to-be-repaired mask, so as to obtain a final repair effect image. According to the hollow identifier, the to-be-repaired area after identifier removal is decreased, relatively strong structural performance can be preserved during the identifier hiding, and the identifier hiding efficiency and effect are improved.

Description

Technical field [0001] The invention relates to a hiding method based on an augmented reality logo, in particular to a structure-preserving augmented reality logo hiding method based on a hollow logo. Background technique [0002] Augmented reality is a new technology developed on the basis of virtual reality. It uses the virtual information provided by the computer system to enhance the user's visual perception of the real world, and at the same time uses related computer technology to render the virtual model to the real scene in real time with the aid of the calibration mark. In the video screen. In order to ensure the consistency of the fusion between the rendered virtual model and the real scene, it is necessary to calculate the internal and external parameters of the camera using the position of the mark and the camera calibration method. [0003] Considering the production cost, ease of use and stability, the logo has become the most important and universal camera calibrati...

AI Technical Summary

Problems solved by technology

However, the occlusion area of ​​the traditional template class and coding class logo in the video screen is usually relatively large. When using the recent better image restoration method to hide the logo, it is generally impossible to guarantee the consistency of the structural background information, resulting in the hidden result of the logo. Distortions such as repair marks and gaps appear

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