A Block Motion Vector Estimation Using Pattern Based, Pixel Decimation

A new pixel decimation technique based on a set of the pixel patterns for block motion vector estimation is presented. FiDr uniform pixel decimation, regular patterns are used for computing the matcliing criterion to estimate the motion vector. The results can easily be misled by some image textures. Tlius, in this paper, we define some “most representative pixel patterns” and make the sclcction according to the iinage content in each block for tlie matching criterion. Our approach can efficiently compensate tlic drawback in uniforiii pixel decimation. Computer simulations show that this technique is close to the performance of the full search, and has a significant rcductioii on computational complexity as compared with other pixel decimation algorithms in tlie litcraturc. Also, it is more convenient for hardware rcalization as coinpared with tlie fully adaptive pixcl decimation.