A novel multiple description video coding based on data reuse

Meng Dong

Abstract:

A novel H.264-based multiple description coding (MDC)
framework, called data reuse MDC (DR-MDC), is
proposed in this paper. The input video sequence is first
down-sampled by a factor of two in both horizontal and
vertical directions, respectively, on each frame to generate
four sub-sequences, followed by grouping them into two
descriptions via the quincunx manner. In each description,
one sub-sequence is directly encoded by applying the
H.264/AVC encoder, while the other is examined at each
macroblock (MB) to determine whether the encoding of
the current MB should be conducted or skipped
completely based on the following criterion: If the MB is
considered locating in a homogeneous or still background
region, the encoding process will be skipped. Otherwise,
the neighboring prediction algorithm will be used to
predict the pixel values of this MB, and the resultant
prediction errors will be further encoded and transmitted.
Experimental results have shown that the proposed
DR-MDC scheme is more error resilient and yields better
reconstructed video than the existing state-of-the-art
MDC methods.