Adaptive context-aware reinforced agent for handwritten text recognition
- Publication Type:
- Conference Proceeding
- Citation:
- British Machine Vision Conference 2018, BMVC 2018, 2019
- Issue Date:
- 2019-01-01
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| Arabic-handwritten-text.pdf | Published version | 352.9 kB |
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Handwritten text recognition has been a ubiquitous research problem in the field of computer vision. Most existing approaches focus on the recognition of handwritten words without considering the cursive nature and significant differences in the writing of individuals. In this paper, we address these problems by leveraging an adaptive context-aware reinforced agent which learns the actions to determine the scales of context regions during inference. We formulate our approach in a reinforcement learning framework. Specifically, we construct the action set with a number of context lengths. Given an image feature sequence, our model is trained to adaptively choose the optimal context length according to the observed state. An attention mechanism is then used to selectively attend the context region. Our model can generalize well from recognizing isolated words to recognizing individual lines of text while remain low computation overheads. We conduct extensive experiments on three large-scale handwritten text recognition datasets. The experimental results show that our proposed model is superior to the state-of-the-art alternatives.
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