PT Unknown
AU Esteve Cervantes
   Long Long Yu
   Andrew Bagdanov
   Marc Masana
   Joost Van de Weijer
TI Hierarchical Part Detection with Deep Neural Networks
BT 23rd IEEE International Conference on Image Processing
PY 2016
DE Object Recognition; Part Detection; Convolutional Neural Networks
AB Part detection is an important aspect of object recognition. Most approaches apply object proposals to generate hundreds of possible part bounding box candidates which are then evaluated by part classifiers. Recently several methods have investigated  directly regressing to a limited set of bounding boxes from deep neural network representation. However, for object parts such methods may be unfeasible due to their relatively small size with respect to the image. We propose a hierarchical method for object and part detection. In a single network we first detect the object and then regress to part location proposals based only on the feature representation inside the object. Experiments show that our hierarchical approach outperforms a network which directly regresses the part locations. We also show that our approach obtains part detection accuracy comparable or better than state-of-the-art on the CUB-200 bird and Fashionista clothing item datasets with only a fraction of the number of part proposals.
ER