Abstract
We present the Sketchy database , the first large-scale collection of sketch-photo pairs. We ask crowd workers to sketch particular photographic objects sampled from 125 categories and acquire 75,471 sketches of 12,500 objects. The Sketchy database gives us fine-grained associations between particular photos and sketches, and we use this to train cross-domain convolutional networks which embed sketches and photographs in a common feature space. We use our database as a benchmark for fine-grained retrieval and show that our learned representation significantly outperforms both hand-crafted features as well as deep features trained for sketch or photo classification. Beyond image retrieval, we believe the…
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4Topics & keywords
Topics
Keywords
- Sketch
- Computer science
- Representation (politics)
- Benchmark (surveying)
- Feature (linguistics)
- Information retrieval
- Convolutional neural network
- Domain (mathematical analysis)
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