Title:
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Depth map coding based on a optimal hierarchical region representation
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Author:
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Maceira Duch, Marc; Ruiz Hidalgo, Javier; Morros Rubió, Josep Ramon
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GPI - Grup de Processament d'Imatge i Vídeo |
Abstract:
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Multiview color information used jointly with depth maps is a
widespread technique for 3D video. Using this depth information,
3D functionalities such as free view point video can be provided
by means of depth-image-based rendering techniques. In this pa-
per, a new technique to encode depth maps is proposed. Based on
the usually smooth structure and the sharp edges of depth map, our
proposal segments the depth map into homogeneous regions of ar-
bitrary shape and encodes the contents of these regions using dif-
ferent texture coding strategies. An optimal lagrangian approach
is applied to the hierarchical region representation provided by our
segmentation technique. This approach automatically selects the
best encoding strategy for each region and the optimal partition to
encode the depth map. To avoid the high coding costs of coding
the resulting partition, a prediction is made using the associated
decoded color image |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament del senyal en les telecomunicacions -Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal -Signal processing -Three-dimensional imaging -Tractament del senyal -Imatges tridimensionals |
Rights:
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Document type:
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Article - Published version Conference Object |
Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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