标题: Fusion of Depth Maps with Multiple Scales [打印本页] 作者: 晃晃 时间: 2011-12-28 09:10 标题: Fusion of Depth Maps with Multiple Scales Fusion of Depth Maps with Multiple Scales
Simon Fuhrmann Michael Goesele
TU Darmstadt TU Darmstadt
Abstract
Multi-view stereo systems can produce depthmaps with large varia-
tions in viewing parameters, yielding vastly different sampling rates
of the observed surface. We present a new method for surface re-
cons***ction by integrating a set of registered depth maps with dra-
matically varying sampling rate. The method is based on the con-
s***ction of a hierarchical signed distance field represented in an in-
complete primal octree by incrementally adding triangulated depth
maps. Due to the adaptive data s***cture, 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 cons***ction of a tetrahedral complex from the
scattered signed distance values and applying the Marching Tetra-
hedra 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.