GENERATION OF A DEPTH MAP FOR AN IMAGE
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United States of America Patent
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Issued Date -
Oct 22, 2015
app pub date -
Nov 7, 2013
filing date -
Nov 7, 2012
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Abandoned
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Abstract
An apparatus for generating an output depth map for an image comprises a first depth processor (103) which generates a first depth map for the image from an input depth map. A second depth processor (105) generates a second depth map for the image by applying an image property dependent filtering to the input depth map. The image property dependent filtering may specifically be a cross-bilateral filtering of the input depth map. An edge processor (107) determines an edge map for the image and a combiner (109) generates the output depth map for the image by combining the first depth map and the second depth map in response to the edge map. Specifically, the second depth map may be weighted higher around edges than away from edges. The invention may in many embodiments provide a temporally and spatially more stable depth map while reducing degradations and artifacts introduced by the processing.
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