CheckScan: a reference hashing for identity document quality detection

Musab Al-Ghadi; Petra Gomez-Krämer; Jean-Christophe Burie

doi:10.1117/12.2623887

4 March 2022 CheckScan: a reference hashing for identity document quality detection

Musab Al-Ghadi, Petra Gomez-Krämer, Jean-Christophe Burie

Proceedings Volume 12084, Fourteenth International Conference on Machine Vision (ICMV 2021); 120840J (2022) https://doi.org/10.1117/12.2623887
Event: Fourteenth International Conference on Machine Vision (ICMV 2021), 2021, Rome, Italy

Abstract

One of important challenges in the document liveness detection process for identity document verification is quality verification. To tackle this challenge, this paper proposes a reference hashing approach to discriminate between the original template of the identity document image and the scan one, which is called CheckScan. Actually, the discrimination process takes place between two aligned identity document images. The proposed approach is made up of two steps: feature extraction based on Fast Fourier Transform (FFT) and hash construction. Feature extraction step involves partitioning the identity document image into set of non-overlapping blocks, and for each block the FFT magnitude spectrum is calculated. Hence, a specific number from the FFT magnitude peaks is selected as discriminative features. The hash construction step quantizes the selected peaks into binary codes by applying a new quantization approach that is based on the coordinates of the selected peaks. These two steps are combined together in this work to achieve good discriminate (well anti-collision) capability for distinct identity document images. Experiments were conducted in order to analyze and identify the most proper parameters to achieve higher discrimination performance. The experimental results were performed on the Mobile Identity Document Video dataset (MIDV-2020), and the results show that the proposed approach builds binary codes quite discriminative for distinct identity document images.

Citation Download Citation

Musab Al-Ghadi, Petra Gomez-Krämer, and Jean-Christophe Burie "CheckScan: a reference hashing for identity document quality detection", Proc. SPIE 12084, Fourteenth International Conference on Machine Vision (ICMV 2021), 120840J (4 March 2022); https://doi.org/10.1117/12.2623887

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KEYWORDS

Feature extraction

Quantization

Binary data

Image processing

Digital forensics

Document image analysis

Image forensics

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