Ahmadi - Iran University of Science and Technolog (IUST), Tehran, Iran
Mohammadi - lran University of Science and Technology (IUST), Tehran, Iran
Azadfar - Iran Telecommunication Research Center (ITRC) Tehran, Iran

In this paper, Three motion estimation algorithms for H.264 standard have been implemented and performance and some features of these three have been tested. These algorithms are full search and two fast search method. Finally some parameters such as bit rate, speed up and PSNR for different value of QP have been compared. Implementation has been performed in Matlab software.

ITU-H.264 standard , motion estimation, full search, fast search