单幅图像距离信息分析模型

Single Image Distance Information Analysis Model

针对单幅图像的距离信息分析,首先建立合理的世界坐标系,基于RANSAC算法的双消失点法计算相机内参数矩阵与外参数矩阵;然后根据相机投影模型,求解图像中点在三维空间中的坐标;最后可得到运动目标之间以及拍照者距地物目标的距离.结果表明:所建立的单幅图像距离信息分析模型可以有效地提取视觉情报中地物目标的几何尺寸.

For the analysis of the distance information of a single image,a reasonable world coordinate system was first established,and then the camera internal parameter matrix and external parameter matrix were calculated based on the double vanishing point method of the RANSAC algorithm;according to the camera projection model,the coordinates of the point in the image in the three-dimensional space were solved;finally,the distance between the moving targets and the distance between the photographer and the ground object were obtained.The results show that the established single-image distance information analysis model can effectively extract the geometric dimensions of the ground objects in the visual information.