S. Bouyagoub, A.S. Akbari, D.R. Bull, and N. Canagarajah (UK)
Stereoscopic video codec, H.264/AVC, camera separation
This paper investigates the impact of camera separation on the performance of an H.264/AVC based stereo-vision video codec. To achieve this, the multi-frame referencing property of H.264/AVC has been employed and the standard H.264/AVC reference software has been modified to support stereoscopic video coding. Experimental results were generated using two sets of wide baseline convergent multi-view test videos: Breakdancers and Ballet. To generate a set of synchronized stereo-videos from the same scene with different inter-camera angles, all possible camera pairs are generated and classified according to their inter-camera angles. The resulting sets of stereo videos are coded using a H.264/AVC based stereo-vision and simulcast coding schemes at different bitrates. Results indicate that the stereo-vision codec outperforms the simulcast coding by up to 3.9dB at lower inter-camera angles and it deteriorates as the inter-camera angle increases. Finally, a range of inter-camera angles for best use of either stereo vision or simulcast coding is determined.
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