Image Interpolation based on Level-sets Motion with Artificial Speed Field

摘要

This paper presents a novel image interpolation method based on level-sets motion (LSM). The proposed method computes the speed field of level-sets adaptively, according to which the contours in images evolve at proper speeds. Thus it can produce images with less jagged edges stably and fast. To suppress blurring artifacts, the shock filter is used to get sharper edges in images. And the new method can interpolate images with arbitrary magnification factors (MFs). Experimental results have verified the effectiveness of the proposed method in terms of both objective and subjective image quality.