Error resilient dual frame motion compensation for mobile communication

Abstract

In dual frame motion compensation (DFMC), one short-term reference frame and one long-term reference frame are utilized for motion compensation. This scheme can be utilized to do error resilience, and there have been a number of DFMC based error resilience in the literature. In the paper, an error resilient jump update DFMC (JU-DFMC) with adaptive unequal error protection is proposed. In the proposed error resilient JU-DFMC, a new error resilient prediction structure is firstly presented, in which for different packet loss rates, the reference frames are adaptively adjusted to reduce error propagation. Then an end-to-end distortion model considering data partition is derived and applied to macroblock (MB) level mode decision. Finally an adaptive unequal error protection is proposed, in which a frame level rate distortion cost scheme is used to determine how many times of the header information will be transmitted in a long-term reference frame. Experimental results show that the proposed method can achieve better performance than previous schemes.