3D Model retrieval based on skeleton

We proposed a new method for 3D model retrieval based on skeletons. As we know a sketch is drawn on a two dimensional plane while models are three dimensional. For better comparison we choose the same dimension for them. For simpler user input we use the front view of the skeleton to represent 3D models, in this way 3D models can be represented in 2D form. We get the skeleton of model through Skeleton Extraction algorithm based on mesh simplification and mesh contraction and get the front view of the skeleton by mapping to two dimensional spaces. The model compared with the Model libraries by Feature description and matching to find similar models on shape and topology structure after getting the feature extraction of the model by the gradient histogram matching algorithm. Experiments showed that most users can find the 3D models they want with our system.