Color consistency adjusting method for real-time video fusion

Abstract

The invention relates to a color consistency adjustment method for real-time video fusion, and the method comprises the steps: (1) respectively carrying out geometric intersection calculation of a three-dimensional model for adjacent cameras through employing respective camera view cones, solving a common three-dimensional overlapping patch, and further calculating a two-dimensional projection region of the common three-dimensional overlapping patch in a corresponding image; (2) for all cameras, constructing a camera topology according to a projection area proportion relationship, and performing optimization adjustment on all camera pictures in the topology by using a chain type adjustment strategy of a color histogram to obtain an overall visual effect with consistent colors; and (3) dueto the limitation of computing resources, indicating color consistency cannot be quickly carried out on all camera pictures, so that real-time color consistency optimization scheduling is provided onthe basis of the step (2). Color consistency textures can be provided for virtual-real fusion based on video projection, a high-quality texture grid without visual splicing seams is generated, and themethod can also be used for improving the image / video splicing effect.

Description

technical field [0001] The invention relates to the technical field of enhanced virtual environment, and more specifically, relates to a color consistency adjustment method for real-time video fusion. Background technique [0002] Augmented Virtual Environment (AVE) is a technology used to display multiple pictures or video streams from any angle in a 3D virtual environment. It has important applications in the field of integrated monitoring systems. Fusion methods are generally divided into two categories, video projection-based virtual-real fusion methods and video-real fusion methods based on single photo modeling. The former requires a highly accurate 3D model, and it is difficult to align the virtual and the real, and the texture is often distorted. The fusion method based on image modeling has more obvious advantages in efficiency and effect. In real surveillance scenarios, different cameras, different parameters of the same camera, or changes in lighting will cause...

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Problems solved by technology

[0005] The purpose of the present invention is: to overcome the poor robustness of the prior art, to provide a color consistency adjustment method for real-time video fusion, which can solve the problem of inconsistency in the texture of the mosaic model in the AVE scene, and can also improve the visual experience of the user observing the scene the goal of

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