Creating a high resolution image from registration and reconstruction of spatially shifted low resolution images

In applications that demand high resolution images, it is often not feasible nor sometimes possible to acquire images of such high resolution by using current CCD camera with its inherent resolution. Instead, image processing methods may be used to construct a high resolution image from multiple, degraded, low resolution images. This paper presented a novel robust high resolution reconstruction method that consists of a high accuracy hierarchical registration, interpolation and postprocessing. This algorithm is found to be effective, robust and shows significant improvement over conventional interpolation algorithms. The success of this algorithm is demonstrated through various simulated and real images.