AVC Based Stereoscopic Video Codec for 3D DMB

In this paper, we propose a new stereoscopic video coding method aiming at efficient stereoscopic video compression over terrestrial digital multimedia broadcasting (T-DMB). The limited amount of bandwidth available to T-DMB network has a significant impact on the amount of information that it can transmit. In particular, to transmit stereoscopic video within the limited channel bandwidth of T-DMB, efficient compression of the visual information is required. One of the enabling technologies is stereoscopic coding which exploit spatial correlation between two views. In order to further improve coding efficiency of the stereoscopic video, a new compression algorithm downsampling residual data is proposed. Main idea of residual-downsampling algorithm is to reduce the resolution of residual data that consist of the differential values between original input image and predicted image and to code the downsampled residual data. Experimental results show the proposed method achieves efficient compression at lower bit rates than Simulcast.