COLOR-BASED DEPTH SMOOTHING OF SCANNED 3D MODEL TO ENHANCE GEOMETRY IN 3D PRINTING

摘要

Methods and systems for correcting depth irregularities in a three-dimensional scanned model. In particular, one or more embodiments obtain depth data and color data for an object using a depth scanner and a color scanner, respectively. One or more embodiments identify, based on edge information in the color data, regions that have no depth data that are part of the object. One or more embodiments then correct the depth frame by assigning depth data to the identified regions based on a gradient of depth data from areas near the identified regions. The methods and systems use the corrected depth data to generate a corrected three-dimensional model of the object.

主权项

1. A method of correcting depth errors in a three-dimensional scanned image, comprising:
obtaining, by at least one processor, a scan of an object with a depth frame and a color frame for the object; identifying, by the at least one processor, one or more regions in the depth frame with missing or irregular depth data; determining, by the at least one processor, whether the one or more regions in the depth frame with missing or irregular depth data should have depth data using the color data from the color frame; correcting, by the at least one processor, the depth frame by assigning depth data to the one or more regions that should have depth data based on depth data from an area surrounding the one or more regions that should have depth data; and generating, by the at least one processor, a smoothed three-dimensional model of the object by combining the corrected depth frame and the color frame.