SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
An image-based approach to three-dimensional computer graphics
An image-based approach to three-dimensional computer graphics
Digital Image Warping
Multiple View Geometry in Computer Vision
Multiple View Geometry in Computer Vision
Relief texture mapping
High-quality video view interpolation using a layered representation
ACM SIGGRAPH 2004 Papers
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Depth MAP distortion analysis for view rendering and depth coding
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
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This paper presents a predictive-coding algorithm for the compression of multiple depth-sequences obtained from a multicamera acquisition setup. The proposed depth-prediction algorithm works by synthesizing a virtual depth-image that matches the depth-image (of the predicted camera). To generate this virtual depth-image, we use an image-rendering algorithm known as 3D image-warping. This newly proposed prediction technique is employed in a 3D coding system in order to compress multiview depth-sequences. For this purpose, we introduce an extended H.264 encoder that employs two prediction techniques: a block-based motion prediction and the previously mentioned 3D image-warping prediction. This extended H.264 encoder adaptively selects the most efficient prediction scheme for each image-block using a rate-distortion criterion. We present experimental results for several multiview depth-sequences, which show a quality improvement of about 2.5 dB as compared to H.264 inter-coded depth-images.