Image Captioning: Transforming Objects into Words

Part of Advances in Neural Information Processing Systems 32 (NeurIPS 2019)

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Simao Herdade, Armin Kappeler, Kofi Boakye, Joao Soares


<p>Image captioning models typically follow an encoder-decoder architecture which uses abstract image feature vectors as input to the encoder. One of the most successful algorithms uses feature vectors extracted from the region proposals obtained from an object detector. In this work we introduce the Object Relation Transformer, that builds upon this approach by explicitly incorporating information about the spatial relationship between input detected objects through geometric attention. Quantitative and qualitative results demonstrate the importance of such geometric attention for image captioning, leading to improvements on all common captioning metrics on the MS-COCO dataset. Code is available at<em>relation</em>transformer .</p>