In the paper, a valid method of fingerprint Image pre- processing is introduced. Experiment results show that this kind of algorithm can availably wipe off yawp imported by the incom- plete leave fingerprint - marking...In the paper, a valid method of fingerprint Image pre- processing is introduced. Experiment results show that this kind of algorithm can availably wipe off yawp imported by the incom- plete leave fingerprint - marking of sensor surface when finger- print sensor record fingerprint. Meanwhile, it can extract the ef- fective and uneffective zone of fingerprint effectively, and also further enhance ridge line and vale line of fingerprint so that make the lines of fingerprint clear, continuum, lubricity and has better contrast, at the same time, has quite quick speed, this fingerprint Image pre- processing time can be shorten greatly.展开更多
Fingerprints are an extraordinary source for recognizable proof of people. Unique finger impression acknowledgment is one of the most seasoned types of biometric identification. However, getting a decent unique finger...Fingerprints are an extraordinary source for recognizable proof of people. Unique finger impression acknowledgment is one of the most seasoned types of biometric identification. However, getting a decent unique finger impression picture isn’t that simple. So we must process unique finger impression picture before coordinating. A crucial advance in measurements of fingerprint minutiae is to obtain minutiae from the finger impression pictures dependably. However, fingerprint images are occasionally of perfect quality. They might be debased and defiled because of varieties in skin and impression conditions. Along these lines, image enhancement strategies utilize other details extraction to acquire a more reliable estimation of minutiae areas. The primary objective of this research work is to introduce a superior and improved unique fingerprint image. We studied the elements identifying with getting elite component focuses detection algorithm, for example, picture quality, segmentation, picture upgrade and highlight recognition. Usually utilized features for enhancing unique finger impression picture quality are Fourier spectrum energy, Sobel filter energy, and local orientation. Precise segmentation of unique finger impression edges from a broad foundation is vital. For productive improvement and feature extraction algorithms, we zero the commotion in segmented features. As a pre-processing method, we need to perform comprising of field introduction, ridge frequency estimation, Sobel filtering, division. Then connect the resulting picture to a thinning algorithm and consequent minutiae extraction. After resultant extraction of these minutiae focuses, we will utilize the picture with focuses for coordinating or finding the offenders and also for other security issues. The procedure of image pre-processing and minutiae extraction is explored. The simulations are performed in the MATLAB environment to assess the execution of the implemented algorithm.展开更多
伪造指纹迷惑性强,对社会危害大,急需开发高效、精确的伪造指纹识别技术。采用图像处理技术可以提高伪造指纹的识别效率和准确性。实验制作了复印、打印、硅胶膜和光敏指纹章盖印的指纹,与直接捺印指纹进行人工和系统自动比对纹线特征点...伪造指纹迷惑性强,对社会危害大,急需开发高效、精确的伪造指纹识别技术。采用图像处理技术可以提高伪造指纹的识别效率和准确性。实验制作了复印、打印、硅胶膜和光敏指纹章盖印的指纹,与直接捺印指纹进行人工和系统自动比对纹线特征点,发现伪造指纹能达到与真实指纹同一认定的条件。采用Adobe Photoshop、Open CV计算机视觉库和Image pro plus图像处理软件,对指纹图像的细节进行深入分析,并提取重要特征,如颜色和墨迹分布,来识别和区分真假指纹。通过对比分析指纹图像中的黄色和蓝色墨点,可以识别是捺印指纹还是打印复印指纹。同时,分析指纹颜色对比度和宽度的变化能够识别硅胶膜和光敏指纹章伪造指纹。因此,图像处理技术能显著增强伪造指纹检测的多维度分析能力,为指纹识别领域提供了科学、具象的证据支持。展开更多
文摘In the paper, a valid method of fingerprint Image pre- processing is introduced. Experiment results show that this kind of algorithm can availably wipe off yawp imported by the incom- plete leave fingerprint - marking of sensor surface when finger- print sensor record fingerprint. Meanwhile, it can extract the ef- fective and uneffective zone of fingerprint effectively, and also further enhance ridge line and vale line of fingerprint so that make the lines of fingerprint clear, continuum, lubricity and has better contrast, at the same time, has quite quick speed, this fingerprint Image pre- processing time can be shorten greatly.
文摘Fingerprints are an extraordinary source for recognizable proof of people. Unique finger impression acknowledgment is one of the most seasoned types of biometric identification. However, getting a decent unique finger impression picture isn’t that simple. So we must process unique finger impression picture before coordinating. A crucial advance in measurements of fingerprint minutiae is to obtain minutiae from the finger impression pictures dependably. However, fingerprint images are occasionally of perfect quality. They might be debased and defiled because of varieties in skin and impression conditions. Along these lines, image enhancement strategies utilize other details extraction to acquire a more reliable estimation of minutiae areas. The primary objective of this research work is to introduce a superior and improved unique fingerprint image. We studied the elements identifying with getting elite component focuses detection algorithm, for example, picture quality, segmentation, picture upgrade and highlight recognition. Usually utilized features for enhancing unique finger impression picture quality are Fourier spectrum energy, Sobel filter energy, and local orientation. Precise segmentation of unique finger impression edges from a broad foundation is vital. For productive improvement and feature extraction algorithms, we zero the commotion in segmented features. As a pre-processing method, we need to perform comprising of field introduction, ridge frequency estimation, Sobel filtering, division. Then connect the resulting picture to a thinning algorithm and consequent minutiae extraction. After resultant extraction of these minutiae focuses, we will utilize the picture with focuses for coordinating or finding the offenders and also for other security issues. The procedure of image pre-processing and minutiae extraction is explored. The simulations are performed in the MATLAB environment to assess the execution of the implemented algorithm.
文摘伪造指纹迷惑性强,对社会危害大,急需开发高效、精确的伪造指纹识别技术。采用图像处理技术可以提高伪造指纹的识别效率和准确性。实验制作了复印、打印、硅胶膜和光敏指纹章盖印的指纹,与直接捺印指纹进行人工和系统自动比对纹线特征点,发现伪造指纹能达到与真实指纹同一认定的条件。采用Adobe Photoshop、Open CV计算机视觉库和Image pro plus图像处理软件,对指纹图像的细节进行深入分析,并提取重要特征,如颜色和墨迹分布,来识别和区分真假指纹。通过对比分析指纹图像中的黄色和蓝色墨点,可以识别是捺印指纹还是打印复印指纹。同时,分析指纹颜色对比度和宽度的变化能够识别硅胶膜和光敏指纹章伪造指纹。因此,图像处理技术能显著增强伪造指纹检测的多维度分析能力,为指纹识别领域提供了科学、具象的证据支持。