Analysis and reconstruction of noisy finger vein infrared optical images

Toto Aminoto, Purnomo Sidi Priambodo, Harry Sudibyo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Biometric technology is required, along with technological advances in the digital world. In this digital age, authentication in digital transactions is necessary, especially for transaction security. We can utilize our unique body organs for the authentication process. One part of the human body that can be functioned for biometric is the finger vein. Finger vein can be used for biometric because every human living, finger vein pattern varies and unique for each person. Therefore, determine the physical characteristics of each person specifically. 780-980 nm near-infrared spectrum is effective for this application because of its portability and non-invasive trait. However, oftentimes, imaging results using infrared radiant contain noise. Notably, noise salt & pepper. This noise-reducing image information accuracy and making the extraction process more difficult, as a result, causing finger vein patterns difficult to recognize. To reduce the problem mentioned above, image noise must be reduced. One of the filters that can be used for reducing salt & pepper noise is the median filter. In the imaging transmitting mode, the intensity of infrared radiant absorbed into finger vein affecting imaging quality result. The bigger intensity, the bigger the transmittance radiance output unless saturation happens. As a result, the finger vein image becomes clearer. Moreover, attenuation intensity transmittance output value is influenced by wavelength. This process is simply according to Rayleigh scattering theory. Differentiation in wavelength, giving an effect in scattered intensity value, then affects attenuation intensity. Attenuation intensity produces different noises depends on the wavelength. This study suppresses the noise and analyzes the impact of wavelength variation on optical imaging process and noise level produced in 780-980 infrared spectrum span.

Original languageEnglish
Title of host publication5th Biomedical Engineering''s Recent Progress in Biomaterials, Drugs Development, and Medical Devices
Subtitle of host publicationProceedings of the 5th International Symposium of Biomedical Engineering, ISBE 2020
EditorsKenny Lischer, Sugeng Supriadi, Siti Fauziyah Rahman, Yudan Whulanza
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440869
Publication statusPublished - 23 Mar 2021
Event5th International Symposium of Biomedical Engineering, ISBE 2020 - Depok, Virtual, Indonesia
Duration: 28 Jul 202029 Jul 2020

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference5th International Symposium of Biomedical Engineering, ISBE 2020
CityDepok, Virtual


  • Median Filter
  • MSE & PSNR
  • Noise salt & pepper
  • Optical Imaging


Dive into the research topics of 'Analysis and reconstruction of noisy finger vein infrared optical images'. Together they form a unique fingerprint.

Cite this