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A Hybrid Technique for De-interlacing Based on Motion Compensation Reliability

Although motion compensated interpolation (MCI) improves the vertical resolution of de-interlaced frames effectively, it often introduces serious defects like feathering artifacts. In this paper, we propose an arbitration rule between MCI and intra-field interpolation for de-interlacing to avoid the motion compensation artifacts (MCAs) produced by erroneous MCI. In the proposed deinterlacing method, we check the MCI results by using the proposed MCA detection method and decide whether the MCI results are reliable or not. And then, we use the reliability of MCI results to combine two de-interlacing methods. The proposed arbitration method is more elaborate than conventional methods since we directly detect the artifacts in MCI results and the reliability of MCI results is used as one of the important factors of the proposed arbitration weights. Experimental results show that the proposed method achieves better image quality than the conventional methods in terms of both subjective and objective measures.