Digital video processing
A multilevel successive elimination algorithm for block matching motion estimation
IEEE Transactions on Image Processing
Fast block matching algorithm based on the winner-update strategy
IEEE Transactions on Image Processing
Successive elimination algorithm for motion estimation
IEEE Transactions on Image Processing
IEEE Transactions on Circuits and Systems for Video Technology
Fast full-search block matching
IEEE Transactions on Circuits and Systems for Video Technology
Global elimination algorithm and architecture design for fast block matching motion estimation
IEEE Transactions on Circuits and Systems for Video Technology
Hi-index | 0.00 |
This paper presents a fast algorithm for global motion estimation based on Iterative Least- Square Estimation (ILSE) technique. Compared with the traditional framework, three improvements were made to accelerate the computation progress. First, a new 3-parameter linear model, together with its solution using modified ILSE method, is proposed to describe and estimate global motion, which is simple and reasonable. Second, a pre-analysis method, Gradient Thresholding (GT) method, is introduced to pre-analyze the image macro-blocks before global motion estimation using their gradient information, which reduce the computational cost by reducing the amount of involved blocks. Lastly, Successive Elimination Algorithm (SEA), which is used to calculate motion field, is improved by a new presented matching criterion considering both the gradient information and the intensity information. The presented method has been tested on a variety of image sequences, and experimental results illustrate its promising performance.