A Survey on Automatic Image Captioning

Abstract

Automatic image captioning is the process of providing natural language captions for images automatically. Considering the huge number of images available in recent time, automatic image captioning is very beneficial in managing huge image datasets by providing appropriate captions. It also finds application in content based image retrieval. This field includes other image processing areas such as segmentation, feature extraction, template matching and image classification. It also includes the field of natural language processing. Scene analysis is a prominent step in automatic image captioning which is garnering the attention of many researchers. The better the scene analysis the better is the image understanding which further leads to generate better image captions. The survey presents various techniques used by researchers for scene analysis performed on different image datasets.