Integrated shape, color, and reflectivity measurement method for 3D digitization of cultural heritage objects

Sitnik, Robert; Mączkowski, Grzegorz; Krzesłowski, Jakub

doi:10.1117/12.839166

Cited by 6 publications

(4 citation statements)

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“…The geophotometric calibration procedure has been incorporated into an already established path of data registration, processing and storage, which was created for an integrated measurement device [17]. This approach uses a multispectral detector for finding the diffusive component and multidirectional illumination for specular component estimation [18].…”

Section: Current Applicationsmentioning

confidence: 99%

Novel calibration procedure for SVBRDF estimation of 3D objects using directional illumination and structured light projection

Krzesłowski

Sitnik

Mączkowski

2013

Three-Dimensional Image Processing (3DIP) and Applications 2013

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Estimation of geometry and reflectance of 3D objects requires that surface geometry is registered together with photometric data. We present a method which combines geometrical camera calibration and photometric calibration into a single procedure utilizing only one calibration target. Using structured light projection and directional illumination, the surface of a 3D object can be registered with an integrated measuring device. To estimate spatial distribution of reflectance parameters, a Spatially Varying Bidirectional Reflectance Distribution Function (SVBRDF) model is used. We also show a 3D image processing method to estimate SVBRDF parameters using an arbitrary defined array of illuminators and algorithms to reconstruct this surface using specialized visualization software. This approach allows for effective measurement of geometry and visual properties of 3D objects represented by a dense point cloud model. It can become a valuable tool for documentation of digital heritage and in industrial computer vision applications.

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Section: Current Applicationsmentioning

confidence: 99%

Novel calibration procedure for SVBRDF estimation of 3D objects using directional illumination and structured light projection

Krzesłowski

Sitnik

Mączkowski

2013

Three-Dimensional Image Processing (3DIP) and Applications 2013

Self Cite

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“…Fringe projection is a crucial kind of optical three-dimensional (3D) measurement technology [1] that is becoming increasingly used in various fields [2,3,4,5,6] such as industrial quality control, rapid prototyping, cultural heritage preservation, and human body 3D measurement. Unfortunately, sinusoidal fringe projection has some inevitable issues when performing such tasks relying on digital projectors, in that the measurement speed is limited by the maximum image switching rate of the projector.…”

Section: Introductionmentioning

confidence: 99%

Fast 3D Surface Measurement with Wrapped Phase and Pseudorandom Image

Xing

He²,

et al. 2019

Sensors

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Balancing the accuracy and speed of three-dimensional (3D) surface measurement of objects is crucial in many important applications. In this paper, we present a wrapped phase and pseudorandom image method and develop an experimental system aiming to avoid the process of phase unwrapping. Our approach can reduce the length of image sequences and improve the speed of pattern projection and image acquisition and can be used as a good candidate for high-speed 3D measurement. The most critical step in our new methodology is using the wrapped phase and the epipolar constraint between one camera and a projector, which can obtain several candidate 3D points within the measurement volume (MV). The false points from the obtained candidate 3D points can be eliminated by the pseudorandom images. A systematic accuracy with MV better than 0.01 mm is achievable. 3D human body measurement results are given to confirm the fast speed of image acquisition capability.

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“…They are described in table 2. Mansouri et al [97] and Sitnik et al [98] have each developed an integrated acquisition system based on an interference lter-wheel, a projector and a single sensor to acquire both 3D and multispectral data. The system developed by Sitnik et al has the particularity of also integrating a ash lamp (for the multispectral acquisitions) and eleven LEDs to acquire additional images which permit the estimation of the surface BRDF.…”

Section: Integrated Acquisition Systemsmentioning

confidence: 99%

Integration of 3D and multispectral data for cultural heritage applications: Survey and perspectives

Chane

Mansouri

Marzani

et al. 2013

Image and Vision Computing

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Cultural heritage is increasingly put through imaging systems such as multispectral cameras and 3D scanners. Though these acquisition systems are often used independently, they collect complementary information (spectral vs. spatial) used for the study, archiving and visualization of cultural heritage. Recording 3D and multispectral data in a single coordinate system enhances the potential insights in data analysis.We present the state of the art of such acquisition systems and their applications for the study of cultural heritage. We also describe existing registration techniques that can be used to obtain 3D models with multispectral texture and explore the idea of optically tracking acquisition systems to ensure an easy and precise registration.

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Integrated shape, color, and reflectivity measurement method for 3D digitization of cultural heritage objects

Cited by 6 publications

References 0 publications

Novel calibration procedure for SVBRDF estimation of 3D objects using directional illumination and structured light projection

Novel calibration procedure for SVBRDF estimation of 3D objects using directional illumination and structured light projection

Fast 3D Surface Measurement with Wrapped Phase and Pseudorandom Image

Integration of 3D and multispectral data for cultural heritage applications: Survey and perspectives

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