3D车载环视全景生成方法

Generation of Three-dimention Vehicle Panorama

通过单应矩阵生成的鸟瞰视角全景图像存在严重的信息损失和边缘模糊形变。为三维空间点加入约束,将其限制在二维空间中,可以实现一幅图像从一个视角唯一变换另一视角。假设3D空间点来自于一个"包裹"车辆的曲面,使得原始摄像头图像上每一点对应的投影线都和曲面有交点,摄像头从不同角度观察曲面和车辆,便可生成多视角全景图像。针对相交区域也进行了特殊处理。最后的实验表明,生成的多视角的全景图像既可以充分利用原始图像信息从不同视角观测车辆周边场景,同时也减少了边缘模糊和扭曲,相交区域的过渡也显得更加自然、平滑。

Information loss,image blur and object deformation exist in bird-eye panoramic image generated by homography matrix.Confined 3Dpoint to two-dimensional space,image in a view can transform to another uniquely.We selected a curved surface wrapping the vehicle as selected two-dimensional space.We can get the multi-view panorama image from different perspectives.A special process is also applied to the overlapping region.The final experiment demonstrate that,the multi-view panorama images make use of all the information in the source images,at the same time,image blur and object deformation decreases notably.The overlapping regions appear more naturally and smoothly.