Abstract
Background and purpose: Biometrics is a commonly studied research issue for both biomedical engineering and forensics sciences. Besides, the purpose of hidden biometrics is to discover hidden biometrics features. This work aims to demonstrate the biometric identification ability of coronary angiography images. Material and method: A new coronary angiography images database was collected to develop an automatic identification model. The used database was collected from 51 subjects and contains 2156 images. The developed model has to preprocess; feature generation using local binary pattern; feature selection with neighborhood component analysis; and classification phases. In the preprocessing phase; image rotations; median filter; Gaussian filter; and speckle noise addition functions have been used to generate filtered images. A multileveled extractor is presented using local binary pattern and maximum pooling together. The generated features are fed to neighborhood component analysis and the selected features are classified using k nearest neighbor classifier. Results: The presented angiography image identification method attained 99.86% classification accuracy on the collected database. Conclusions: The obtained findings demonstrate that the angiography images can be utilized as biometric identification. Moreover, we discover a new hidden biometric feature using coronary angiography images and name of this hidden biometric is coronary angiography print.
Highlights
A coronary angiogram is one of the X-ray imaging techniques [1,2]
Coronary angiography is generally used in the diagnosis of coronary artery disease, postmortem coronary angiography is performed to investigate the cause of death and to determine the coronary anatomy [3,4,5,6,7,8]
Dr Mason Sones invented coronary artery imaging on 30th October 1958 and he injected a contrast material into the right coronary artery of a person and he imaged coronary arteries. It was the first application of invasive cardiology [9]
Summary
A coronary angiogram is one of the X-ray imaging techniques [1,2]. Coronary angiography is the gold standard diagnostic method of coronary artery disease (CAD) and CAD is the disease that causes the most mortality worldwide. Dr Mason Sones invented coronary artery imaging on 30th October 1958 and he injected a contrast material into the right coronary artery of a person and he imaged coronary arteries. It was the first application of invasive cardiology [9]. Coronary angiography has been used frequently as an imaging method and as a treatment method [10,11]
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