A One-Shot Learning Approach to Document Layout Segmentation of Ancient Arabic Manuscripts.

Document layout segmentation is a challenging task due to the variability and complexity of document layouts. Ancient manuscripts in particular are often damaged by age, have very irregular layouts, and are characterized by progressive editing from different authors over a large time window. All these factors make the semantic segmentation process of specific areas, such as main text and side text, very difficult. However, the study of these manuscripts turns out to be fundamental for historians and humanists, so much so that in recent years the demand for machine learning approaches aimed at simplifying the extraction of information from these documents has consistently increased, leading document layout analysis to become an increasingly important research area. In order for machine learning techniques to be applied effectively to this task, however, a large amount of correctly and precisely labeled images is required for their training. This is obviously a limitation for this field of research as ground truth must be precisely and manually crafted by expert humanists, making it a very time-consuming process. In this paper, with the aim of overcoming this limitation, we present an efficient document layout segmentation framework, which while being trained on only one labeled page per manuscript still achieves state-of-the-art performance compared to other popular approaches trained on all the available data when tested on a challenging dataset of ancient Arabic manuscripts.