Kuncup Iswandy and Andreas König Institute of Integrated Sensor Systems Department of Electrical and Computer Engineering An Image Processing Application.

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Kuncup Iswandy and Andreas König Institute of Integrated Sensor Systems Department of Electrical and Computer Engineering An Image Processing Application on QuickCog “Coin Recognition” Tunahan AVCI February, 2007 Prof. Dr.-Ing. Andreas König

Kuncup Iswandy and Andreas König Overview 1.Introduction Motivation 2.Parts of the Project Image Acquisition ROI & Feature Computation Feature Selection & Extraction Classification Results 3.Conclusion

Kuncup Iswandy and Andreas König Nowadays, instead of people machines are used in all parts of our lives and image processing applications are quite common in this machine based applications. Photo booth in a public building Drink Machine Cigarette vending machine Motivation

Kuncup Iswandy and Andreas König Parts of Project Our project is also about one of these useful applications. Coin recognition by image processing using QuickCog. In this project, we have used both training and test part. We have followed the steps below during the learning process and test it with untrained data.

Kuncup Iswandy and Andreas König 1. Image Acquisition Firstly, We have collected the photos of there different coins and classified them in QuickCog Stichprobeneditor.

Kuncup Iswandy and Andreas König 2. ROI & Feature Computation After data aquisition, we used histogram according to three different colours (red, blue, green) in order to get some statistics about the features of the data and selected the features randomly.

Kuncup Iswandy and Andreas König 3. Feature Selection & Extraction In this part, we have selected reduction methods in terms of separability, overlap, Sequential Backward and Forward selection, etc. in order to reduce the dimensionality and get compact data.

Kuncup Iswandy and Andreas König 4. Classification And the last part, to finialize the study, we used different classification methods in terms of RNN, kNN, Eucledian Distance Clasifier(EAK), etc. and tried to achieve the best classification results.

Kuncup Iswandy and Andreas König 5. Classification Results Now we can continue second part of our project. Test Case. The only but most important think we have to do is selecting the same features with training part.

Kuncup Iswandy and Andreas König Results

Kuncup Iswandy and Andreas König Conclusion What have I learned from this project? In an image processing aplication, all methods may give better solutions, so even it is tedious, researchers must continue with different methods or features until getting a sufficient result In an image processing application histogram should be used The result of the training part are not always the same with the test part. A perfect classification can give not sufficiently qualified results in test part.So, we cannot say anything before testing.

Kuncup Iswandy and Andreas König IMAGE PROCESSING Thank You for your attention!