An Appropriate Spatial Frequency Selection Method for Moving Object Velocity Estimation in the Mixed Domain

摘要

To estimate moving object velocity in an image sequence is useful for a variety of applications, such as veloc- ity measurement, computer vision and monitoring systems. An effective way is to approach it in the transform/spatiotemporal mixed domain (MixeD), which transforms the 3-D signal process- ing problem into 1-D complex signal processing. But it remains a problem how to select several spatial frequency points in the MixeD which may influence the accuracy of velocity estimation And object detection.