Campus Event Calendar

Event Entry

New for: D2

What and Who

Fusion of Depth Maps with Multiple Scales

Simon Fuhrmann
TU Darmstadt

AG 2, AG 4, MMCI  
AG Audience

Date, Time and Location

Monday, 28 November 2011
30 Minutes
E1 4


Multi-view stereo systems can produce depth maps with large variations in viewing parameters, yielding vastly different sampling rates of the observed surface. We present a new method for surface reconstruction by integrating a set of registered depth maps with dramatically varying sampling rate. The method is based on the construction of a hierarchical signed distance field represented in an incomplete primal octree by incrementally adding triangulated depthmaps. Due to the adaptive data structure, our algorithm is able to handle depth maps with varying scale and to consistently represent coarse, low-resolution regions as well as small details contained in high-resolution depth maps. A final surface mesh is extracted from the distance field by construction of a tetrahedral complex from the scattered signed distance values and applying the Marching Tetrahedra algorithm on the partition. The output is an adaptive triangle mesh that seamlessly connects coarse and highly detailed regions while avoiding filling areas without suitable input data.


Thorsten Thormählen
+49 681 9325-417
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Thorsten Thormählen, 11/22/2011 15:11 -- Created document.