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PreSTU: Pre-Training for Scene-Text Understanding

2022-09-12 18:29:55
Jihyung Kil, Soravit Changpinyo, Xi Chen, Hexiang Hu, Sebastian Goodman, Wei-Lun Chao, Radu Soricut

Abstract

The ability to read and reason about texts in an image is often lacking in vision-and-language (V&L) models. How can we learn V&L models that exhibit strong scene-text understanding (STU)? In this paper, we propose PreSTU, a simple pre-training recipe specifically designed for scene-text understanding. PreSTU combines a simple OCR-aware pre-training objective with a large-scale image-text dataset with off-the-shelf OCR signals. We empirically demonstrate the superiority of this pre-training objective on TextVQA, TextCaps, ST-VQA, and VizWiz-VQA. We also study which factors affect STU performance, where we highlight the importance of image resolution and dataset scale during pre-training.

Abstract (translated)

URL

https://arxiv.org/abs/2209.05534

PDF

https://arxiv.org/pdf/2209.05534.pdf


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