A Gated and Bifurcated Stacked U-Net Module for Document Image Dewarping
| Autor: | Hmrishav Bandyopadhyay, Nibaran Das, Mita Nasipuri, Tanmoy Dasgupta |
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| Rok vydání: | 2021 |
| Předmět: |
FOS: Computer and information sciences
Basis (linear algebra) business.industry Computer science Computer Vision and Pattern Recognition (cs.CV) Pipeline (computing) Computer Science - Computer Vision and Pattern Recognition Boundary (topology) 02 engineering and technology 010501 environmental sciences Grid 01 natural sciences Image (mathematics) 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Computer vision Artificial intelligence business Geographic coordinate system Mobile device Bifurcation 0105 earth and related environmental sciences |
| Zdroj: | ICPR |
| DOI: | 10.1109/icpr48806.2021.9413001 |
| Popis: | Capturing images of documents is one of the easiest and most used methods of recording them. These images however, being captured with the help of handheld devices, often lead to undesirable distortions that are hard to remove. We propose a supervised Gated and Bifurcated Stacked U-Net module to predict a dewarping grid and create a distortion free image from the input. While the network is trained on synthetically warped document images, results are calculated on the basis of real world images. The novelty in our methods exists not only in a bifurcation of the U-Net to help eliminate the intermingling of the grid coordinates, but also in the use of a gated network which adds boundary and other minute line level details to the model. The end-to-end pipeline proposed by us achieves state-of-the-art performance on the DocUNet dataset after being trained on just 8 percent of the data used in previous methods. |
| Databáze: | OpenAIRE |
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