Block-overlap-based validity metric for hybrid de-interlacing

This paper presents a block-overlap-based validity metric in the context of hybrid de-interlacing. The proposed metric uses the degree of motion-compensated block overlap as a measure of motion vector (MV) validity. In contrast to other validity methods in the literature, the proposed method is not sensitive to image features and does not require the use of neighboring MVs or manual thresholds. To perform hybrid de-interlacing, the confidence value for each MV is used to weigh the contribution from two de-interlacing methods. Experimental results show that the de-interlaced images produced with the proposed method are of significant higher quality than those produced by existing validity methods.