A Fast Algorithm to Implement H.263 Using FDMA with EDAZ
Sha Ji · Huadong Li-Gong Daxue xuebao · 2003
A fast motion estimation algorithm to implement the recommendation H.263 is presented using the frequency domain block matching algorithm with early detection of all zero coefficients. The early detection algorithm of all zero coefficients is analyzed and an improved algorithm is proposed based on Alice Yu's algorithm. The results of simulation indicate that the average search times and average encoding time with the algorithm are much less than those with DSS algorithm, with almost similar code length and average PSNR. Finally, a software encoder with the algorithm is implemented, which may basically satisfy the requirements of real time communications such as video phone and video conference.