Mr. Jan A. N. Buytaert Profile

Jan A. N. Buytaert

PhD student at Univ Antwerpen

SPIE Involvement:

Author

Publications (5)

SPIE Journal Paper | 29 February 2012

Real-time geometric lens distortion correction using a graphics processing unit

Sam Van der Jeught, Jan Buytaert, Joris Dirckx

OE, Vol. 51, Issue 02, 027002, (February 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.2.027002

KEYWORDS: Distortion, Image processing, Graphics processing units, Visualization, Video, Calibration, Imaging systems, Endoscopes, Video acceleration, Optical engineering

Read Abstract +

Proceedings Article | 30 January 2012 Paper

X-ray stereo imaging for micro 3D motions within non-transparent objects

Wasil H. Salih, Jan A. Buytaert, Joris J. Dirckx

Proceedings Volume 8290, 82900T (2012) https://doi.org/10.1117/12.905265

KEYWORDS: Motion measurement, X-rays, Ear, 3D metrology, Stereoscopy, Absorbance, X-ray imaging, 3D image processing, Stereo holograms, Absorption

Read Abstract +

Proceedings Article | 3 November 2011 Paper

Correction of deformed images in real time

Sam Van der Jeught, Jan A. N. Buytaert, Joris J. J. Dirckx

Proceedings Volume 8011, 80116O (2011) https://doi.org/10.1117/12.900236

KEYWORDS: Distortion, Image processing, Image resolution, Graphics processing units, Visualization, Digital image processing, GPU based image processing, Image quality, Pixel resolution, Optical imaging

Read Abstract +

Proceedings Article | 15 April 2010 Paper

Fringe generation and phase shifting with LCDs in projection moiré topography

Jan A. N. Buytaert, Joris J. J. Dirckx

Proceedings Volume 7522, 75220H (2010) https://doi.org/10.1117/12.851666

KEYWORDS: Liquid crystals, Phase shifts, LCDs, Demodulation, Projection systems, Image resolution, Phase shifting, Optical filters, Cameras, Structured light

Read Abstract +

Structured light projection techniques are an important and popular approach for whole-field surface topography. Within this branch, projection moiré interferometry is our preferred optical metrology method. The use of liquid crystal display (LCD) projectors to produce structured light patterns has been proposed and used before in projection moiré. It allows fast and easy adaptation of the grid pitch and thus measurement sensitivity. In this paper we will show how using a second liquid crystal panel makes the projection moiré technique even more versatile and performant: The setup incorporates optical demodulation (OD) which in turn allows for accurate phase-shifting and the use of phase-shifting algorithms (PSAs). The Z-resolution is high and no filtering or interpolation is needed in X-Y by using the gray scale value variations through the phase-shifting and optical demodulation. Thus, we make optimal use of the camera pixel resolution and achieve an uncompromised measuring resolution. Furthermore, the setup is entirely digitally controlled, needs no physical interaction and avoids mechanically moving component. The low-cost setup, technique and theory will be covered in this talk. The resolution and other performance properties will be discussed and demonstrated. And to conclude, an application to achieve elasticity parameters of membranes will be shown. interferometry is our preferred optical metrology method. The use of liquid crystal display (LCD) projectors to produce structured light patterns has been proposed and used before in projection moiré. It allows fast and easy adaptation of the grid pitch and thus measurement sensitivity. In this paper we will show how using a second liquid crystal panel makes the projection moiré technique even more versatile and performant: The setup incorporates optical demodulation (OD) which in turn allows for accurate phase-shifting and the use of phase-shifting algorithms (PSAs). The Z-resolution is high and no filtering or interpolation is needed in X-Y by using the gray scale value variations through the phase-shifting and optical demodulation. Thus, we make optimal use of the camera pixel resolution and achieve an uncompromised measuring resolution. Furthermore, the setup is entirely digitally controlled, needs no physical interaction and avoids mechanically moving component. The low-cost setup, technique and theory will be covered in this talk. The resolution and other performance properties will be discussed and demonstrated. And to conclude, an application to achieve elasticity parameters of membranes will be shown.

SPIE Journal Paper | 1 January 2007 Open Access

Design and quantitative resolution measurements of an optical virtual sectioning three-dimensional imaging technique for biomedical specimens, featuring two-micrometer slicing resolution

Jan Buytaert, Joris Dirckx

JBO, Vol. 12, Issue 01, 014039, (January 2007) https://doi.org/10.1117/12.10.1117/1.2671712

KEYWORDS: Image resolution, 3D image processing, 3D modeling, Biomedical optics, Objectives, Image quality, Diffraction, Cameras, Luminescence, 3D image reconstruction

Read Abstract +

DOWNLOAD PAPER

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years