@conference {cMaceira12,
	title = {Depth map coding based on a optimal hierarchical region representation},
	booktitle = {3DTV Conference},
	year = {2012},
	month = {10/2012},
	publisher = {IEEE},
	organization = {IEEE},
	address = {Zurich, Switzerland},
	abstract = {<p>Multiview color information used jointly with depth maps is a widespread technique for 3D video. Using\&nbsp;this depth information, 3D functionalities such as free view point video can be provided by means of\&nbsp;depth-image-based rendering techniques. In this paper, a new technique to encode depth maps is\&nbsp;proposed. Based on the usually smooth structure and the sharp edges of depth map, our proposal segments\&nbsp;the depth map into homogeneous regions of arbitrary shape and encodes the contents of these regions\&nbsp;using different texture coding strategies. An optimal lagrangian approach is applied to the hierarchical\&nbsp;region representation provided by our segmentation technique. This approach automatically selects the\&nbsp;best encoding strategy for each region and the optimal partition to encode the depth map. To avoid the\&nbsp;high coding costs of coding the resulting partition, a prediction is made using the associated decoded\&nbsp;color image.</p>},
	keywords = {3DTV, Depth map coding, depth/texture compresion, rate-distortion optimization, Shape-adaptive DCT},
	isbn = {978-1-4673-4903-1},
	doi = {10.1109/3DTV.2012.6365481},
	author = {Maceira, M. and Ruiz-Hidalgo, J. and Morros, J.R.}
}
