Photometric holographic assembly of the VNIIOFI

Ginzburg, V. M.; Stepanov, B. M.

doi:10.1007/bf00819151

Cited by 2 publications

(3 citation statements)

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“…Defocusing is a fairly common case of aberration. If we consider the phase error at a point with coordinates (x, y) in the plane of the exit pupil as kV(x, y), where k is the wave number, and V sets the effective path length error, then the transmitting coefficient, which in general has a complex form, can be written as: (9) where Z j (x, y) is recording of the function of the pupil in general. If we consider aberration, then for a coherent transfer function, we can write the relation: (10) The area of overlap of functions and can be represented as some function B (ξ, η).…”

Section: The Transfer Function Of the Optical System Used To Defocus ...mentioning

confidence: 99%

“…However, in the case of processing images like interferograms, that is, having a complex structure, it is quite difficult to identify the defining characteristic points. Constructing stylized complex images from its simplest "informative fragments" [9], which are the most characteristic features of a given image, is a fairly effective way to circumvent the problem discussed above. The defocusing of images by optical methods allows you to select these "informative fragments", which are further recognized by the holographic correlator.…”

Section: Introductionmentioning

confidence: 99%

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Accentuate of moiré in an interference pattern by defocusing

Ismanov,

Tynyshova

2024

Optica Applicata

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The article considers a mathematical model of an incoherent optical system, into which defocusing is introduced as an aberration. When modeling, it is assumed that if non-coherent lighting is used to illuminate an object, then the transforming optical system should be considered as linear with respect to the intensity of the light. An analysis of the optical system of a general form was carried out, and relations were obtained for a system with a circular pupil, who allowed obtaining defocused images at the output of the optical system, and the defocusing value was rather simply adjustable. The proposed model can be used either as a low-pass filter for preprocessing of interferograms, or as a method for extracting informative image fragments, using which it is possible to synthesize the original image.

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Section: The Transfer Function Of the Optical System Used To Defocus ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Accentuate of moiré in an interference pattern by defocusing

Ismanov,

Tynyshova

2024

Optica Applicata

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“…In recent years, there has been a significant number of recommendation requirements, largely related to the impact of the construction site on the environment. Such regulations include LEED, BREEAM and DGNB, designed to motivate the construction of buildings that comply with the concepts of environmental friendliness, energy efficiency and sustainable development [7].…”

Section: Requirements On the Basis Of Voluntary Standardsmentioning

confidence: 99%

Approaches and typology to be applied for building information models verification

Makisha

2019

E3S Web Conf.

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Experts from different countries are engaged in the study and development of verification systems of information models of construction projects. Nevertheless a problem of systematization and structuring of information on the types of inspections that the information model of the construction object can be subjected to still exist. In this article the author proposes a possible version of the classification of information model verification types using the faceted method, which determines the potential extensibility of this classification. The facet classification method involves the parallel division of a set of objects into independent classification groupings. It does not assume a rigid classification structure and preconstructed finite groupings. Classification groupings are formed by combining values taken from the corresponding facets. The article gives a detailed description of facets that may be applied.

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Photometric holographic assembly of the VNIIOFI

Cited by 2 publications

References 1 publication

Accentuate of moiré in an interference pattern by defocusing

Accentuate of moiré in an interference pattern by defocusing

Approaches and typology to be applied for building information models verification

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