Adaptive Selecting Decimation Pattern Algorithm for Motion Estimation
Hong Zhang · Acta Aeronautica Et Astronautica Sinica · 2007
A new method of pixel decimation for the motion estimation is presented in this paper.This method improves the one-dimension gradient descent algorithm (ODGDA) first, and then selects appropriate decimation patterns to reduce the redundanc y in the motion estimation criterion computation.This method proposes five decim ation patterns based on the gradient descent direction, and it can select the de cimation pattern adaptively during the motion estimation.Experimental results sh ow that this algorithm is close to the performance of ODGDA which has no pixel d ecimation, but the computation time is reduced significantly.The proposed method is more suitable for real-time hardware realization of video application.