Sketch-based image retrieval with deep visual semantic descriptor

Sketch-based Image Retrieval (SBIR) has received a lot of attentions recently. In this paper we aim to enhance SBIR with deep visual semantic descriptor and related optimization mechanisms. Our scheme significantly differs from other earlier work in: 1) A feature representation via deep visual semantic descriptor is established to bridge the gap between sketches and images, which can encode both low-level local features and high-level semantic features; 2) A clustering-based re-ranking optimization is introduced to further improve SBIR by dynamically adjusting the correlations of images in the ranking list. The main contribution of our work is that we effectively apply the deep visual semantic descriptor to enable deep sketch-image matching, which has provided a more reasonable base for us to fuse local low-level visual features with high-level semantic features by determining an optimal correlated mapping. Our experiments on a large number of public data have obtained very positive results.