Modified Unequal Error Protection for the H.264/AVC video frames with macroblocks´ motion energy estimation

This paper proposes an Unequal Error Protection (UEP) method for H.264/AVC video frames based on motion energy, which is defined as the necessary energy for a block movement between two different frames. The importance of a macroblock is determined on the basis of a threshold, which is estimated by its neighboring macroblocks. The importance of a frame is determined depending on the majority of macroblocks having high or low importance. This method provides better performance than other motion-based UEP methods, while significantly reducing the number of stuff bits used for channel coding.