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## Overview
This project focus on the detection and recognition of Euro banknotes and has the following associated paper:
This project focus on the detection and recognition of Euro banknotes and has the following associated resources:

- ICARSC 2016 paper: [Recognition of Banknotes in Multiple Perspectives Using Selective Feature Matching and Shape Analysis](https://www.researchgate.net/publication/301888929_Recognition_of_Banknotes_in_Multiple_Perspectives_Using_Selective_Feature_Matching_and_Shape_Analysis)


- [Presentation](https://www.researchgate.net/publication/301888713_Recognition-of-Banknotes-in-Multiple-Perspectives-Using-Selective-Feature-Matching-and-Shape-Analysis-Presentation)


- [Poster](https://www.researchgate.net/publication/301888902_Recognition-of-Banknotes-in-Multiple-Perspectives-Using-Selective-Feature-Matching-and-Shape-Analysis-Poster)

[Multiview banknote recognition with component and shape analysis](https://www.researchgate.net/publication/260392128_Multiview_banknote_recognition_with_component_and_shape_analysis)

**Abstract:**
Robust banknote recognition in different perspective
views and in dynamic lighting conditions is a critical component in
assistive systems for visually impaired people. It also has an
important role in improving the security of ATM maintenance
procedures and in increasing the confidence in the results
computed by automatic banknote counting machines. Moreover,
with the proper hardware, it can be an effective way to detect
counterfeit banknotes. With these applications in mind, it was
developed a system that can recognize multiple banknotes in
different perspective views and scales, even when they are part of
cluttered environments in which the lighting conditions may vary
considerably. The system is also able to recognize banknotes that
are partially visible, folded, wrinkled or even worn by usage. To
accomplish this task, the system is based in image processing
algorithms, such as feature detection, description and matching.
To improve the confidence in the recognition results, the contour
of the banknotes is computed using a homography, and its shape
is analyzed to make sure that it belongs to a banknote. The system
was tested with 82 test images, and all Euro banknotes were
successfully recognized, even when there were several banknotes
in the same test image, and they were partially occluded.
Reliable banknote recognition is critical for detecting counterfeit banknotes in ATMs and help visual impaired people. To solve this problem, it was implemented a computer vision system that can recognize multiple banknotes in different perspective views and scales, even when they are within cluttered environments in which the lighting conditions may vary considerably. The system is also able to recognize banknotes that are partially visible, folded, wrinkled or even worn by usage. To accomplish this task, the system relies on computer vision algorithms, such as image preprocessing, feature detection, description and matching. To improve the confidence of the banknote recognition the feature matching results are used to compute the contour of the banknotes using an homography that later on is validated using shape analysis algorithms. The system successfully recognized all Euro banknotes in 80 test images even when there were several overlapping banknotes in the same test image.

## Results

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## Building and developing
The setup instructions on how to build and develop in Visual Studio is available [here](https://github.com/carlosmccosta/Currency-Recognition/blob/master/CurrencyRecognition/docs/Visual%20Studio%20configuration%20for%20OpenCV%202.4.8.txt)


## Related repositories
- [ICARSC 2016 latex paper](https://github.com/carlosmccosta/Currency-Recognition-Article)
- [ICARSC 2016 latex presentation](https://github.com/carlosmccosta/Currency-Recognition-Presentation)
- [ICARSC 2016 latex poster](https://github.com/carlosmccosta/Currency-Recognition-Poster)

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