| Abstract: | In this letter, we present an enhanced block‐based adaptive loop filter (E‐BALF) with multiple filter symmetric structures. The E‐BALF adapts various filter symmetric structures in a rate‐distortion optimization sense, reflecting the statistical properties of each image in a video sequence. Experimental results show that the proposed method achieves a reduction in the Bjøntegaard delta (BD)‐bitrate by an average of 9.60% compared with Joint Model 11.0 of H.264/AVC. Compared to the state‐of‐the‐art BALF, a reduction of up to 1.13% in BD‐bitrate is achieved. |
