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Sketch-based queries are a suitable and superior alternative to traditional text- and example-based queries for 3D shape retrieval. The authors developed an articulated 3D shape retrieval method that uses easy-to-obtain 2D sketches. In contrast to existing sketch-based retrieval systems that lower the 3D database models to 2D, their algorithm implicitly lifts the 2D query to 2.5D by inferring depth...
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