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Dostrzec i zrozumieć. Porównanie wybranych metod wizualizacji danych ALS wykorzystywanych w archeologii

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Kiarszys G., Banaszek Ł.

Folia Praehistorica Posnaniensia

2017

vol. 22

233-270

Application of airborne laser scanning (ALS) for archaeological purposes allows for identification of relief features. Unless the detection is automated, the recognition of archaeological objects in the observed dataset is bounded by the interaction between human mind, eye and visual phenomena that are displayed on the screen. To improve effectiveness of ALS interpretation several visualization techniques have been developed. However, due to their complexity the spatial information produced by these algorithms differs. The aim of the paper is to present the discrepancies between the most popular visualization techniques used for archaeological purposes. Unlike previous attempts, the presented comparison is based on the vector outputs of the interpretative mapping. Therefore, we demonstrate in detail the differences in the morphology as well as quantity of identified archaeological features due to the use of various visualization techniques.

Biskupin... i co z tego? Wiedza totalna w kontekście rozwoju prospekcji

58%

Wroniecki P.

Studia Lednickie

2020

vol. 19

59-80

Over the past two decades, archaeologists have been steadily opening up with regards to the use of metal detectors. However, there is still debate about who, when, where and on what terms should they be allowed to be used. Reflecting on this issue, it is impossible to resist the impression that this problem is only one of many symptoms of a certain unfinished, broader discussion about approaches to recognising archaeological monuments. In this process the use of metal detectors already has an established role. The methodology of their application has been refined over years of practice and adapted to the nuances of archaeological fieldwork. So, when looking for a place for detectors in archaeological research, we are really discussing the role of metal detectors as one of the methods in the holistic archaeological cognitive process known as archeological prospection. In practice archaeological prospection involves a search and documentation procedure that is based on the overarching principle of the application of various imperfect methods that complement each other. In the context of prospection in Poland, the currently dominant and common archaeological documentation is based on single method recognition, namely field-walking, as part of the Archaeological Picture of Poland (AZP) programme. Although the creators of the AZP themselves were aware of its imperfections and limitations, currently the perception of this documentation has undergone a severe primitisization. From my perspective the problem around AZP is the uncritical use of this data. For example, it was somehow forgotten that what was marked in the AZP records are not de facto “archaeological sites”, but a positive record of places where it was possible to observe finds on the surface (mostly pottery and flint), thus leading to an extremely biased and incomplete record. The incomplete recognition of archaeological monuments has a number of consequences that are difficult to accept. They are worsened by the fact that the effect of the single method AZP has customarily become the official record of monuments. Something that was inherently incomplete became the “objective” foundation for administrative decisions. This is manifested, for example, by accidental – costly – discoveries or, the even more harmful, complete omission and destruction of monuments during various construction investments. The problem of knowledge based on one method and competing specialisations does not only apply to archaeology. This phenomenon has been described by V. Frankl, an Austrian philosopher, who noticed the harmful effects of the fragmentary view of specialists on human nature. Thus the key problem is not that we have not yet decided which method is the best, but the view that only one method is appropriate. As long as archaeologists believe that all potential knowledge can be acquired through one ideal method, it will be difficult to take a step forward. We are stuck in an unsolvable and idle dispute. AZP, excavations, metal detectors or geophysics, are just one of many ways to explore the past elements of a larger whole in which archaeological prospection plays a fundamental role.

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1 Folia Praehistorica Posnaniensia

1 Studia Lednickie

1 Banaszek Ł.

1 Kiarszys G.

1 Wroniecki P.

1 2020

1 2017

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Dostrzec i zrozumieć. Porównanie wybranych metod wizualizacji danych ALS wykorzystywanych w archeologii

Biskupin... i co z tego? Wiedza totalna w kontekście rozwoju prospekcji