Semantically guided depth upsampling

N Schneider, L Schneider, P Pinggera… - … , GCPR 2016, Hannover …, 2016 - Springer
Pattern Recognition: 38th German Conference, GCPR 2016, Hannover, Germany …, 2016Springer
We present a novel method for accurate and efficient upsampling of sparse depth data,
guided by high-resolution imagery. Our approach goes beyond the use of intensity cues only
and additionally exploits object boundary cues through structured edge detection and
semantic scene labeling for guidance. Both cues are combined within a geodesic distance
measure that allows for boundary-preserving depth interpolation while utilizing local context.
We model the observed scene structure by locally planar elements and formulate the …
Abstract
We present a novel method for accurate and efficient upsampling of sparse depth data, guided by high-resolution imagery. Our approach goes beyond the use of intensity cues only and additionally exploits object boundary cues through structured edge detection and semantic scene labeling for guidance. Both cues are combined within a geodesic distance measure that allows for boundary-preserving depth interpolation while utilizing local context. We model the observed scene structure by locally planar elements and formulate the upsampling task as a global energy minimization problem. Our method determines globally consistent solutions and preserves fine details and sharp depth boundaries. In our experiments on several public datasets at different levels of application, we demonstrate superior performance of our approach over the state-of-the-art, even for very sparse measurements.
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