Frame Rate Converter With Pixel-Based Motion Vectors Selection and Halo Reduction Using Preliminary Interpolation

Abstract

A new two-image-based method for frame rate conversion is proposed to reduce blocking, halo, and flickering artifacts. For blocking effects, a pixel-based motion vector (MV) selection is suggested based on neighboring block-based motion vectors. For halo reduction, after a preliminary image interpolation, MV at each pixel is re-estimated using the interpolated intensities and the MV of the current pixel and its neighbors constrained in adaptive sliding windows. Experimental results showed that the proposed method outperforms objectively and subjectively in comparison with some existing interpolation techniques.