Abstract:With the increase of communication and financial transaction through internet, on-line signature verification is an accepted biometric technology for access control and plays a significant role in authenticity and authorization in modernized society. Therefore, fast and precise algorithms for the signature verification are very attractive. The goal of this paper is modeling of velocity signal that pattern and properties is stable for persons. With using pole-zero models based on discrete cosine transform, prec… Show more
“…As exhibited in Tables 5–7, regardless of the systems proposed in [2, 5, 9, 11, 12, 25, 35, 43] is yielding better EER values contrasted with the proposed framework, the essential pitfall with these models is that these models are assessed with only one category, i.e. S_01, R_01.…”
Section: Experimentation and Resultsmentioning
confidence: 99%
“…Whereas, the proposed model is thoroughly evaluated with wide experimentation in Skilled 1, 5, 10, 15, 20 and Random 1, 5, 10, 15, 20. Hence, its superiority is validated as compared to [2, 5, 9, 11, 12, 25, 35, 43].…”
“…As exhibited in Tables 5–7, regardless of the systems proposed in [2, 5, 9, 11, 12, 25, 35, 43] is yielding better EER values contrasted with the proposed framework, the essential pitfall with these models is that these models are assessed with only one category, i.e. S_01, R_01.…”
Section: Experimentation and Resultsmentioning
confidence: 99%
“…Whereas, the proposed model is thoroughly evaluated with wide experimentation in Skilled 1, 5, 10, 15, 20 and Random 1, 5, 10, 15, 20. Hence, its superiority is validated as compared to [2, 5, 9, 11, 12, 25, 35, 43].…”
“…Image forgery detection is very important, and researchers are focused on CMFD and have achieved excellent results. According to the studies, CMF can be classified into two general methods[ 7 11 ] based on block and keypoint.…”
Background:
Digital devices can easily forge medical images. Copy-move forgery detection (CMFD) in medical image has led to abuses in areas where access to advanced medical devices is unavailable. Forgery of the copy-move image directly affects the doctor’s decision. The method discussed here is an optimal method for detecting medical image forgery.
Methods:
The proposed method is based on an evolutionary algorithm that can detect fake blocks well. In the first stage, the image is taken to the signal level with the help of a discrete cosine transform (DCT). It is then ready for segmentation by applying discrete wavelet transform (DWT). The low-low band of DWT, which has the most image properties, is divided into blocks. Each block is searched using the equilibrium optimization algorithm. The blocks are most likely to be selected, and the final image is generated.
Results:
The proposed method was evaluated based on three criteria of precision, recall, and F1 and obtained 90.07%, 92.34%, and 91.56%, respectively. It is superior to the methods studied on medical images.
Conclusions:
It concluded that our method for CMFD in the medical images was more accurate.
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