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Stereoscopic image generation based on depth images for 3D TV

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2 Author(s)
Zhang, L. ; Commun. Res. Centre Canada, Ottawa, Ont., Canada ; Wa James Tam

A depth-image-based rendering system for generating stereoscopic images is proposed. One important aspect of the proposed system is that the depth maps are pre-processed using an asymmetric filter to smoothen the sharp changes in depth at object boundaries. In addition to ameliorating the effects of blocky artifacts and other distortions contained in the depth maps, the smoothing reduces or completely removes newly exposed (disocclusion) areas where potential artifacts can arise from image warping which is needed to generate images from new viewpoints. The asymmetric nature of the filter reduces the amount of geometric distortion that might be perceived otherwise. We present some results to show that the proposed system provides an improvement in image quality of stereoscopic virtual views while maintaining reasonably good depth quality.

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Broadcasting, IEEE Transactions on  (Volume:51 ,  Issue: 2 )