PHOTOGRAMMETRIC METHOD OF FORENSIC PHOTOGRAPHY Artem Kovalenk

doi:10.26565/2075-1834-2020-29-34

Артем Володимирович Коваленко Луганський державний університет внутрішніх справ ім. Е.О. Дідоренка https://orcid.org/0000-0003-3665-0147

DOI: https://doi.org/10.26565/2075-1834-2020-29-34

Keywords: forensic photography, photography methods, photogrammetry, polyphotogrammetric method, 3D model.

Abstract

The article is devoted to defining the essence and directions of application of the photogrammetric method of forensic photography in criminal proceedings. It is determined that the photogrammetric method of forensic photography is to photograph objects according to special rules in order to further measure them on the obtained images. It is determined that the photogrammetric method of judicial photography consists in photographing objects according to special rules in order to perform their further measurements using the obtained images. The method of measuring objects using a single image is called monophotogrammetric and is known in the theory of forensic photography as measuring (scale) method; using a pair of images is called stereophotogrammetric (known as stereoscopic); measurement with more than two images is a polyphotogrammetric method.

As a result of polyphotogrammetric fixation of an object with the help of a serial digital camera and computer image processing, it is possible to obtain its high-quality geometrically accurate textured three-dimensional model. Objects of different sizes, from micro-objects, to entire buildings or areas, interiors can be scanned with polyphotogrammetric method. The 3D model of the scanned object reconstructed as a result of polyphotogrammetric photography and software processing can be saved in a number of conventional formats in electronic form, viewed and researched using special software.

The rules and algorithm of polyphotogrammetric scaning are given, the process of reconstruction of 3D model on the basis of received images is described. The advantages of the researched method of forensic photography are its non-invasiveness, clarity and accuracy of the obtained models, wide possibilities of their use and research.

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