一种结合四元数与直方图的多光谱图像自适应边缘检测方法

An Adaptive Edge Detection Method for Multi-Spectral Image Combining Quaternion and Histogram

针对图像自适应边缘检测的难点和传统多光谱遥感图像边缘检测方法的局限性,提出了一种结合四元数与直方图的自适应边缘检测方法。该方法在四元数空间,利用矢量旋转完成了多光谱图像的边缘检测,并通过直方图统计的方法获取自适应阈值,实现了边缘图像的检测。利用陆地多光谱遥感图像和水域多光谱遥感图像分别进行实验,验证了方法的有效性。

For the difficulties of adaptive image edge detection and the limitations of conventional edge detection method for multi-spectral remote sensing image, an adaptive edge detection method based on quaternion and histogram was proposed. In the quaternion space, the multi-spectral image edge detection was completed using vector rotation, and the adaptive threshold was got through histogram statistics, which achieved the edge image. Experiments using general multi-spectral remote sensing images and waters multi-spectral remote sensing images were conducted, which verified the effectiveness of the method.