This paper presents a new pel recursive motion estimation algorithm for video coding applications. The derivation of the algorithm is based on Recursive Least-Squares (RLS) estimation that minimizes the mean square prediction error. A comparison with the modified Steepest-descent gradient estimation technique algorithm shows significant improvement in terms of mean-square prediction error performance.
and Reza-alikhani, H.
A Pel-Recursive Motion Estimation Algorithm, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.6822
(Accessed December 10, 2023)