Poroscopy – The Study of Sweat Pores among Central Indian Population

Bhagwat, Vaishali; Kumar, Devesh; Lakshmi, K Naga Vidya

doi:10.36348/sijap.2020.v03i06.001

SIJAP

2020

DOI: 10.36348/sijap.2020.v03i06.001

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Poroscopy – The Study of Sweat Pores among Central Indian Population

Vaishali Bhagwat¹,

Devesh Kumar²,

K Naga Vidya Lakshmi³

Abstract: The study that deals with the scrutiny of sweat pores is known as Poroscopy. They were located as little openings over the frictional ridge skin near the distal end of digits & in palms and soles. The study was conducted in central India among 400first year MBBS students of both sexes within the age limit of 18 to 23. Thumb prints of left hand were taken with Kores printer's ink over the executive bond paper and are then processed with Ninhydrin chemical. The Latent prints thus obtained are cautiously scrutini… Show more

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Cited by 3 publications

References 6 publications

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Recent Progress in Visualization and Analysis of Fingerprint Level 3 Features

Chen

Zhang

2022

ChemistryOpen

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Fingerprints provide sufficient and reliable discriminative characteristics which have been considered one of the most robust evidence for individualization. The limitation of current minutiae‐based fingerprint technology seems to be solved with the development of level 3 features since they can offer additional information for problematic fingerprint recognition and even donor profiling. So far, tremendous efforts have been devoted to detecting and analysing the third‐level details. This review summarizes the advances in level 3 details with an emphasis on their reliability assessment, visualization methods based on physical interaction, residue‐response, mass spectrometry and electrochemical techniques, as well as the potentiality for individualization, donor profiling and even other application scenarios. In the end, we also give a personal perspective on the future direction and the remaining challenges in the third‐level‐detail‐related field. We believe that the new exciting progress is expected in the development of level 3 detail detection and analysis with continued interest and attention to this field.

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Recent Progress in Visualization and Analysis of Fingerprint Level 3 Features

Chen

Zhang

2022

ChemistryOpen

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A bimanual comparison of variation in sweat pores with sex and age: a brief dermatoglyphic survey of population in Delhi-NCR

Sharda,

Mondal

2023

Egypt J Forensic Sci

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Background Personal identification using partial fingerprints poses a major challenge in forensic investigations. In light of such restrictions, sweat pore characteristics have shown to be a possible alternative. However, limited research has been done on these due to their minute size. The present study was undertaken with the objective of studying the differences in pore frequency, pore shapes (circular and non-circular), and pore positions (middle and periphery) with respect to sex, bimanual, and age in the population of Delhi-NCR (National Capital Region). As there is no universal approach for defining the evaluation area of pore analysis, we used fingerprint patterns to demarcate a 9mm2 area of analysis. The rolled-inked fingerprints of 200 individuals (100 males and 100 females) belonging to 18-60 years of age were examined using microscopy. Results The obtained data for all prints was analysed and compared with respect to the different variables. The results showed statistically significant bimanual variations for both sexes. In females, all studied pore characteristics except the number of pores at the middle position were significantly higher in the right hand as compared to the left hand. In males, only the number of pores at the peripheral position was significantly higher in the right hand as compared to the left hand. However, no significant differences were observed in pore characteristics between the two sexes and among the different age groups. Moreover, several pore characteristics showed a significant correlation with age in males as compared to females where no significant correlations were observed. Conclusions Significant bimanual variations highlighted the potential application of pore characteristics for forensic practice; wherein a fingerprint examiner might determine the probable hand used for the commission of the crime, thereby strengthening the evidentiary value of partial fingerprints. These findings also suggest that the sex and age of an individual cannot be determined by pore characteristics.

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Automatic algorithm for the characterization of sweat ducts in a three-dimensional fingerprint

Kong

Lin

et al. 2021

Opt. Express

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In this study, an automatic algorithm has been presented based on a convolutional neural network (CNN) employing U-net. An ellipsoid and an ellipse were applied for approximation of a three-dimensional sweat duct and en face sweat pore at the different depths, respectively. The results demonstrated that the length and the diameter of the ellipsoid can be used to quantitatively describe the sweat ducts, which has a potential for estimating the frequency of resonance in millimeter (mm) wave and terahertz (THz) wave. In addition, projection-based sweat pores were extracted to overcome the effect that the diameters of en face sweat pores depend on the depth. Finally, the projection-based image of sweat pores was superposed with a maximum intensity projection (MIP)-based internal fingerprint to construct a hybrid internal fingerprint, which can be applied for identification recognition and information encryption.

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Poroscopy – The Study of Sweat Pores among Central Indian Population

Cited by 3 publications

References 6 publications

Recent Progress in Visualization and Analysis of Fingerprint Level 3 Features

Recent Progress in Visualization and Analysis of Fingerprint Level 3 Features

A bimanual comparison of variation in sweat pores with sex and age: a brief dermatoglyphic survey of population in Delhi-NCR

Automatic algorithm for the characterization of sweat ducts in a three-dimensional fingerprint

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