MBAFFF, an adaptive interpolation to AVS video

Although the MBPAFF technique adopted in AVS X-profile has an explicit coding gain over the MBAFF of H.264/AVC technique, the complexity in implementation remains an issue, especially when the field and frame MacroBlock pairs are randomly distributed. To resolve this problem, we propose a MacroBlock-based Adaptive Field and Frame coding method based on adaptive interpolation using fixed filters (MBAFFF) and thus keep the RD performance of the MBPAFF. The proposed interpolation schemes include directional interpolation and extra interpolation filters which efficiently increase the inter prediction accuracy.