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Measurement of the shape of objects by shape from focus

Shape from focus is a method for the accurate measurement of the geometrical shape of objects. The measurement principle is the local focus search. Therefore, the method is suitable only ...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2015
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Result

Shape from focus for large image fields

Shape from focus is a method for the accurate measurement of the geometrical shape of objects. The measurement principle is the local focus search. The method coordinate of a surface poin...

BH - Optika, masery a lasery

  • 2015
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  • Jx
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Result

Fast Shape-From-Focus method for 3D object reconstruction

Shape-From-Focus method (SFF method) is a method for recovering depth from an image series which are taken with different focus settings. For method presented or classic...

Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

  • 2018
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  • Jimp
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Result

Simulation of the Shape from focus method using polychromatic point spread function

Design of a model of a sensor based on the Shape from focus method is presented. The model uses polychromatic point spread functions of a generalized aperture function of lens and their convolution with an ideal im...

Optics (including laser optics and quantum optics)

  • 2016
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Result

Design of a model for shape from focus method

We propose a numerical model for simulation of an object depth measurement by means of a shape from focus method using Laplacian operator. The core focus error instead of more exploited the pillbox sha...

BH - Optika, masery a lasery

  • 2016
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Result

Mathematical Principles of Object 3D Reconstruction by Shape-from-Focus Methods

Shape-from-Focus (SFF) methods have been developed for about twenty years. They able to obtain the shape of 3D objects from a series of partially focused images. The plane to which the mi...

Applied mathematics

  • 2021
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  • Jimp
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Result

Prospects of Event Shape Sorting

Event Shape Sorting is a novel method which is devised to organise a sample of collision events in such a way, that events with similar final state distribution similarly. Thus the method allows to focus at finer f...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2020
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  • Jimp
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Result

Sectional techniques for 3D imaging of microscopic and macroscopic objects

The present paper compares confocal and non-confocal methods, discusses their advantages and disadvantages, specifies their limits and illustrates their particular properties by means of real microscopic and macroscopic 3D reconstructions....

Optics (including laser optics and quantum optics)

  • 2017
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  • Jimp
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Result

Shape measuring of aspheric surfaces within the optiical ? manufacturing process

The article is brief survey of chosen methods of measuring shape of optical surfaces with focus on asferic ones that are considered its application potential in centre of focus by many science workplaces and compan...

BH - Optika, masery a lasery

  • 2011
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Result

Complex wedge-shaped matrices: A generalization of Jacobi matrices

method: The band (or block) generalization of the Golub-Kahan bidiagonalization. Wedge-shaped matrices can be linked also to the band (or block) Lanczos method. In this paper, we introduce a complex generalization of wedge...

BA - Obecná matematika

  • 2015
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