获取动态图像位移矢量的灰度投影算法的应用

Application of Gray Projection Algorithm to Acquiring Displacement Vectors of a Dynamic Image

利用灰度投影算法获取图像运动信息 ,具有计算速度高、精度高等优点 ,但以往仅用来处理理想的动态图像即只有平移量的图像 ,限制了此方法的进一步的应用。本文通过分析几种较为复杂的动态图像获取图像运动特点 ,并采用相应的预处理方法使此算法能准确处理图像 。

Acquisition of image motion information by use of gray projection algorithm has the advantages of high calculation speed and high accuracy. But in the past this algorithm was only applied to processing ideal dynamic image, i.e., the image only with some translation. This case limits the further application of the algorithm. Through analyzing several dynamic images with more complicated motion characteristics and after the corresponding preprocessing methods have been adopted, this algorithm can accurately process images, thus the applicable range of gray projection algorithm can be extended.