Automatic Hand Features Extraction for Forensic Purposes

Main Article Content

Mario Gazziro
Matheus Vasques
Eduardo Real
João Carmo
Maria Kunkel

Abstract

This work describes a low computational cost image processing methodology for the identification of hand features for forensic applications – like height, gender, and ethnicity for suspect inference. The proposed methodology provides an adequately tailored sequence of image and geometrical processings on pictures of hands based on critical points like fingertips, finger valleys, and palm centers. As a result, we present the automatic measurements taken on 416 images compared with actual measurements from a manual caliper. The proposed approach leads to a 93.16% correlation (p - value < 0.05) related to the caliper, demonstrating the effectiveness of the technique.

Article Details

Gazziro, M., Vasques, M., Real, E., Carmo, J., & Kunkel, M. (2023). Automatic Hand Features Extraction for Forensic Purposes. Journal of Forensic Science and Research, 7(1), 077–082. https://doi.org/10.29328/journal.jfsr.1001054
Research Articles

Copyright (c) 2023 Gazziro M, et al.

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Bhatnagar DP, Thapar SP, Batish MK. Identification of personal height from the somatometry of the hand in Punjabi males. Forensic Sci Int. 1984 Feb;24(2):137-41. doi: 10.1016/0379-0738(84)90093-8. PMID: 6706263.

Ilayperuma I, Nanayakkara G, Palahepitiya N. Prediction of personal stature based on the hand length. Galle Medical Journal. 2009; 14(1).

Agrawal J, Raichandani L, Sushma k, Raichandani S. Estimation of stature from hand length and length of phalanges. Journal of Evolution of Medical and Dental Sciences. 2013; 2(50):9651-9656.

Guest R, Miguel-Hurtado O, Stevenage S, Black S. Exploring the relationship between stride, stature and hand size for forensic assessment. J Forensic Leg Med. 2017 Nov; 52:46-55. doi: 10.1016/j.jflm.2017.08.006. Epub 2017 Aug 26. PMID: 28865387.

Samoon S, Itoo MS, Shahdad S, Jan N, Nisa G, Ahmad S. Correlation of stature and hand length in adult kashmiri population. International Journal of Contemporary Medical Research. 2018; 5(3):2454-7379.

Case DT, Ross AH. Sex determination from hand and foot bone lengths. J Forensic Sci. 2007 Mar;52(2):264-70. doi: 10.1111/j.1556-4029.2006.00365.x. PMID: 17316220.

Manning JT, Churchill AJ, Peters M. The effects of sex, ethnicity, and sexual orientation on self-measured digit ratio (2D:4D). Arch Sex Behav. 2007 Apr;36(2):223-33. doi: 10.1007/s10508-007-9171-6. PMID: 17373585.

Kunkel. Brazilian Hand Database, www.mao3d.com.br, accessed in 2023.

Sevastopolsky A. hands-images. https://github.com/seva100/ hands-images. 2018.