3D Model Retrieval Based on Three-Views Hand Drawn Sketches by Exploiting Contextual Similarity

This paper proposes a 3D model retrieval system based on three-views hand-drawn sketches. In the system, users can express their desired 3D models by drawing three sketches from front, side and top viewing directions, and the system can automatically returns a set of 3D models whose 2D views are similar to the input sketches. Fourier Descriptors and HOG are integrated as features which are used to measure similarity between query sketches and 2D views generated from 3D models. We also explore contextual similarity among 3D models in the database to improve the performance of our system. The experiment results demonstrate that our approach can successfully retrieval relevant 3D models what users desire to search.