IMPROVEMENT OF THE MATHEMATICAL METHOD FOR ASSESSING THE POSITION OF THE HEAD OF THE PHOTOGRAPHED PERSON USED IN THE PRODUCTION OF FORENSIC PORTRAIT EXAMINATION
Journal: FORENSIC EXAMINATION
№ 3
, 2024
Authors:
Type:
Article
Pages:
from 137
to 143
Status:
Published
Received:
17.07.2024
Accepted:
23.07.2024
Published:
30.09.2024
Subject area:
UDC 343.982.323
Language:
Russian
Keywords:
FORENSIC PORTRAIT EXAMINATION, MATHEMATICAL METHOD, HEAD POSITION OF THE PHOTOGRAPHED PERSON, SIMILAR TRIANGLES, FORMULA
Abstract:
The article suggests a way to simplify the production of measurements using the mathematical method in forensic portrait examination. The author schematically demonstrates the principle of calculating the values of the angles of rotation and tilt / deviation of the human head in a photographic image, which differ from the tabular values given in the textbook "Criminalistic identification of a person by different-angle photographic portraits". Based on these data, a mathematical justification for the derivation of formulas aimed at optimizing the relevant calculations is provided. A specific example illustrates the production of calculations of the desired values of the deviation of the head position in a photograph using formulas derived from the ratios resulting from the first sign of similarity of triangles. The proposed approach will reduce the time spent by an expert on calculating the values of the angles of rotation and tilt / deviation of the head of a person imprinted on the objects of forensic portrait examination under consideration, as well as reduce the number of possible computational errors, since the proposed method does not require the use of proportional calculations, but implies substituting integer values into a unified formula.
The article suggests a way to simplify the production of measurements using the mathematical method in forensic portrait examination. The author schematically demonstrates the principle of calculating the values of the angles of rotation and tilt / deviation of the human head in a photographic image, which differ from the tabular values given in the textbook "Criminalistic identification of a person by different-angle photographic portraits". Based on these data, a mathematical justification for the derivation of formulas aimed at optimizing the relevant calculations is provided. A specific example illustrates the production of calculations of the desired values of the deviation of the head position in a photograph using formulas derived from the ratios resulting from the first sign of similarity of triangles. The proposed approach will reduce the time spent by an expert on calculating the values of the angles of rotation and tilt / deviation of the head of a person imprinted on the objects of forensic portrait examination under consideration, as well as reduce the number of possible computational errors, since the proposed method does not require the use of proportional calculations, but implies substituting integer values into a unified formula.
Keywords:
FORENSIC PORTRAIT EXAMINATION, MATHEMATICAL METHOD, HEAD POSITION OF THE PHOTOGRAPHED PERSON, SIMILAR TRIANGLES, FORMULA
FORENSIC PORTRAIT EXAMINATION, MATHEMATICAL METHOD, HEAD POSITION OF THE PHOTOGRAPHED PERSON, SIMILAR TRIANGLES, FORMULA
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