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Verification of the Wołek Castle Model with the Actual State Using Digital Photogrammetry and Conventional Survey Methods4

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Słowińska N. , Żyła A. , Borowiec N.

nr nr 17/1

35-55

This paper presents the results of a study to assess the feasibility of using the Structure from Motion photogrammetric method to estimate what parts of Wołek Castle have survived from the 15th century to the present day. The photogrammetric measurements were made with a Nikon D5200 camera, and 249 mock-up images were obtained. Planimetry and altitude coordinates of the castle ruins were obtained using RTN GNSS measurements and the polar method. The measurements were made in the 2000 coordinate system in zone 6, the heights were obtained in the Kronstadt system. Two spatial models were made. The first one in the field scale was made using the ground control points measured in the terrain. The second one was made using ground control points measured on the model in the local system. The control measures were analyzed, the model compared with the actual orthophotomap, and it was estimated what part of the castle was preserved in reality. (original abstract)

Autoportret selfie instrumentem zarządzania wielokulturowym potencjałem społecznym

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Nikołajew J. , Urbas M.

nr nr 11 Zarządzanie wielokulturowym potencjałem społecznym

21-39

Odmienna kultura, zwyczaje i normy społeczne odbierane przez nas, a podpatrzone w systemie globalnej komunikacji, po pewnym czasie i w pewnym zakresie są także u nas widoczne. Eksplozja nowoczesnych technologii, powszechny dostęp do nich, globalizacja zachowań, wielokulturowy potencjał społeczny - wszystko to przyczyniło się do masowego wirtualnego publikowania autoportretów przez ludzi. Pokolenie, które obecnie zaczyna dorosłe życie, świadomie tworzy konglomerat profesjonalistów, producentów, promotorów ulubionych produktów, a zarazem konsumentów dóbr i usług. Nieuchronnie prowadzi to do wypracowania nowych instrumentów zarządzania wielokulturowym potencjałem społecznym, w którym jednym z nowoczesnych narzędzi stało się selfie. (abstrakt oryginalny)

A different culture, customs and social norms perceived by us, and the global communication system, after some time, and to some extent, are also visible within us. The explosion of new technologies, universal access to them, globalization behaviour, and multiculturalism all contributed to a massive virtual publishing of self-portraits by people. The generation that is now starting adult life, knowingly creates a conglomerate of professionals, producers, promoters of favourite things, as well as, consumers of goods and services. This inevitably leads to the development of new instruments for managing multiculturalism, in which one of the modern tools has become the selfie. (original abstract)

The Impact of Photo Overlap, the Number of Control Points and the Method of Camera Calibration on the Accuracy of 3D Model Reconstruction

100%

Róg M. , Rzonca A.

nr nr 15/2

67-87

This research attempted to determine the optimal photo overlap, number of control points and method of camera calibration for a photogrammetric 3D model reconstruction of an object of cultural heritage value. Terrestrial images of the object were taken with a hand-held digital camera and processed in the ContextCapture software using the Structure-from-Motion (SfM) algorithm. A total station was used to measure ground control points (GCPs) and check points. Here, the research workflow, methodology, and various analyses concerning different configurations of the aforementioned factors are described. An attempt to assess the parameters which should be implemented in order to provide a high degree of accuracy of the model and reduce time-consumption both during fieldwork and data processing was taken. The manuscript discusses the results of the analyses and compares them with other studies presented by different authors and indicates further potential directions of studies within this scope. Based on the authors' experience with this research, some general conclusions and remarks concerning the planning of photo acquisition from the terrestrial level for the purpose of 3D model reconstruction were formulated. (original abstract)