Design Peculiarities of the Aerial Photography  From an Unmanned Aircraft

Yurchenko, V.I.

doi:10.33764/2411-1759-2021-26-2-65-81

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…Полученные изображения являются наглядным источником информации и служат основой для принятия взвешенных и обоснованных решений. Применение указанных комплексов возможно только в условиях достаточной освещенности снимаемого объекта, что не всегда обеспечивается естественными источниками оптического излучения [4].…”

Section: Introductionunclassified

The concept of aerial photography using a two-element active optoelectronic complex

Altuchov¹,

Korshunov²

2023

Naučno-teh. vestn. inf. tehnol. meh. opt.

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Section: Introductionunclassified

The concept of aerial photography using a two-element active optoelectronic complex

Altuchov¹,

Korshunov²

2023

Naučno-teh. vestn. inf. tehnol. meh. opt.

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Matters of choosing the pixel size in topographic aerial photography

Yurchenko¹

2021

G&C

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The existing regulatory documents on photogrammetric works are technologically outdated. They neither take into account the peculiarities of aerial photography with digital cameras, the navigation equipment used and modern image processing methods, nor regulate the technique of calculating the pixel size on the ground. In order to select the pixel size in the terrain for aerial photography with topographic requirements concerning to the results, the method of multivariate analysis of the input data is proposed. It is supposed to ensure the minimum pixel size on the ground according to such criteria as the accuracy of the aerial triangulation results, the accuracy of building a digital elevation model for orthotransformation, the possibility of the objects interpretation with a specified minimum size and consideration of camera exposure parameters. To determine the accuracy criteria, we used formulas for pre- calculation of spatial phototriangulation accuracy with multiple choice of parameters. Examples of pixel size selection in the terrain at designing aerial photography by an amateur camera for the purposes of large-scale mapping are considered. Conclusions on the necessity of solving the issues of selecting parameters of large scale aerial photography, taking into account multiple input data and used aerial survey equipment are made.

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Consideration of physical factors at planning topographic aerial photography

Yurchenko¹

2022

G&C

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Despite the variety of flight task preparation programs represented in the market and introduction of new standards of technical requirements in topographic aerial photography, the design issues of the latter are not worked out in detail; the criteria of pixel size selection on the ground are not defined. The necessity of considering all the input data i.e. customer requirements to the outcome product, characteristics of the used technical means of flight support, navigation and photographic equipment, the impact of external factors of the photographic environment was noted in the paper. Within the framework of the unified methodical approach to the choice of the pixel size in the design, the use of theoretical and physical similarity criteria is proposed. The method provides analyzing aerial photography’s all external and internal factors complex interaction and consideration of their affecting the result. Physical criteria, i.e. stability of flight, image quality of images, and depth of depicted high-altitude objects sharpness are considered in detail. The theoretical justification of determining the similarity coefficients is given. It analyzes the changes in coefficients depending on focal length, camera exposure parameters, etc. The method of taking into account physical factors and estimation of design accuracy is presented. The software implementation of the method is described. The practical example of multi-factor data analysis for selection of pixel size for designing large-scale aerial photography of built-up area is considered. The relevance of determining the coefficients directly in the course of aerial survey is shown.

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Design Peculiarities of the Aerial Photography From an Unmanned Aircraft

Cited by 4 publications

References 2 publications

The concept of aerial photography using a two-element active optoelectronic complex

The concept of aerial photography using a two-element active optoelectronic complex

Matters of choosing the pixel size in topographic aerial photography

Consideration of physical factors at planning topographic aerial photography

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