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CurrencyRecognition | ||
=================== | ||
# [Currency Recognition](http://carlosmccosta.github.io/Currency-Recognition/) | ||
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Augmented reality currency recognition | ||
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## Overview | ||
This project focus on the detection and recognition of Euro banknotes and has the following associated paper: | ||
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[Multiview banknote recognition with component and shape analysis](https://github.com/carlosmccosta/Currency-Recognition/raw/master/Report/Multiview%20banknote%20recognition%20with%20component%20and%20shape%20analysis.pdf) | ||
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**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. | ||
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## Results | ||
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![Fig. 1 - Detection of a banknote in an ideal perspective view](https://raw.github.com/carlosmccosta/Currency-Recognition/master/Results/Representative%20results/5__(5).jpg___SIFT-Detector_SIFT-Extractor_BF-Matcher_lowQualityImageDB_globalMatch__inliersMatches__0.jpg) | ||
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Fig. 1 - Detection of a banknote in an ideal perspective view | ||
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![Fig. 2 - Detection of a banknote with perspective distortion](https://raw.github.com/carlosmccosta/Currency-Recognition/master/Results/Representative%20results/5__(6).jpg___SURF-Detector_SURF-Extractor_BF-Matcher_lowQualityImageDB_globalMatch__inliersMatches__0.jpg) | ||
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Fig. 2 - Detection of a banknote with perspective distortion | ||
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![Fig. 3 - Detection of a banknote in cluttered environments](https://raw.github.com/carlosmccosta/Currency-Recognition/master/Results/Representative%20results/10__(9).jpeg___SIFT-Detector_SIFT-Extractor_BF-Matcher_lowQualityImageDB_globalMatch__inliersMatches__0.jpg) | ||
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Fig. 3 - Detection of a banknote in cluttered environments | ||
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![Fig. 4 - Detection of partially occluded banknotes](https://raw.github.com/carlosmccosta/Currency-Recognition/master/Results/Representative%20results/500.jpg___GFTT-Detector_SIFT-Extractor_BF-Matcher_dynamicQualityImageDB_globalMatch__inliersMatches__0.jpg) | ||
![Fig. 4 - Detection of partially occluded banknotes](https://raw.github.com/carlosmccosta/Currency-Recognition/master/Results/Representative%20results/50__(13).jpg___SIFT-Detector_SIFT-Extractor_BF-Matcher_mediumQualityImageDB_globalMatch__inliersMatches__0.jpg) | ||
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Fig. 4 - Detection of partially occluded banknotes | ||
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![Fig. 5 - Detection of overlapping banknotes](https://raw.github.com/carlosmccosta/Currency-Recognition/master/Results/Representative%20results/10-20-50.jpg___SIFT-Detector_SIFT-Extractor_BF-Matcher_dynamicQualityImageDB_globalMatch__inliersMatches__1.jpg) | ||
![Fig. 5 - Detection of overlapping banknotes](https://raw.github.com/carlosmccosta/Currency-Recognition/master/Results/Representative%20results/10-20-50.jpg___SIFT-Detector_SIFT-Extractor_BF-Matcher_dynamicQualityImageDB_globalMatch__inliersMatches__2.jpg) | ||
![Fig. 5 - Detection of overlapping banknotes](https://raw.github.com/carlosmccosta/Currency-Recognition/master/Results/Representative%20results/10-20-50.jpg___SIFT-Detector_SIFT-Extractor_BF-Matcher_dynamicQualityImageDB_globalMatch__inliersMatches__0.jpg) | ||
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Fig. 5 - Detection of overlapping banknotes | ||
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## Releases | ||
[Windows 8.1 release](https://github.com/carlosmccosta/Currency-Recognition/releases) | ||
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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) |