S. Sowmyayani and P. Arockia Jansi Rani
Enhancing the Performance of H.264AVC in Adaptive Group of Pictures Mode Using Octagon and Square Search Pattern
980 - 984
2015
9
8
International Journal of Electronics and Communication Engineering
https://publications.waset.org/pdf/10002731
https://publications.waset.org/vol/104
World Academy of Science, Engineering and Technology
This paper integrates Octagon and Square Search
pattern (OCTSS) motion estimation algorithm into H.264AVC
(Advanced Video Coding) video codec in Adaptive Group of Pictures
(AGOP) mode. AGOP structure is computed based on scene change
in the video sequence. Octagon and square search pattern blockbased
motion estimation method is implemented in interprediction process
of H.264AVC. Both these methods reduce bit rate and computational
complexity while maintaining the quality of the video sequence
respectively. Experiments are conducted for different types of video
sequence. The results substantially proved that the bit rate,
computation time and PSNR gain achieved by the proposed method
is better than the existing H.264AVC with fixed GOP and AGOP.
With a marginal gain in quality of 0.28dB and average gain in bitrate
of 132.87kbps, the proposed method reduces the average computation
time by 27.31 minutes when compared to the existing stateofart
H.264AVC video codec.
Open Science Index 104, 2015