Mapping GOPS in an Improved DVC to H.264 Video Transcoder - Advanced Concepts for Intelligent Vision Systems - page 32

5 Conclusions
This work presents a DVC to H.264 transcoder which has been improved to allow
every WZ GOP as input and mapping them into a H.264 GOP I11P. Moreover, the
transcoding process was improved by reusing the MVs generated at the WZ decoding
algorithm to reduce the time spent on the H.264 ME over 72%. As a consequence, the
overall time is considerably reduced without any significant loss of RD. As future
work, it is planned to extend H.264 pattern introducing B frames. Furthermore, we
will invest effort in order to accelerate Wyner-Ziv decoding stage.
Acknowledgments. This work was supported by the Spanish MEC and MICINN, as
well as European Commission FEDER funds, under Grants CSD2006-00046,
TIN2009-14475-C04. It was also partly supported by JCCM funds under grant
PEII09-0037-2328 and PII2I09-0045-9916, and the University of Castilla-La Mancha
under Project AT20101802. The work presented was developed by using the
VISNET2-WZ-IST software developed in the framework of the VISNET II project.
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