Optimizing thermography depth probing with a dynamic thermal point spread function

M. Omar; M. Hassan; K. Saito

doi:10.1016/j.infrared.2005.02.002

Optimizing thermography depth probing with a dynamic thermal point spread function

M. Omar, M. Hassan, K. Saito

University of Kentucky

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Derivation of two point spread functions PSFs suitable for infrared thermograms analysis is illustrated, based on two unique approaches, one based on depth decaying limit and one on diffusion limit. Experimental work using PMMA sample with back drilled holes and pulsed thermographic routine is utilized to show the effectiveness of deconvoluting pixel temperature transient history with suggested PSF's. Synthetic second time derivative thermograms are utilized for comparison and the signal to noise ratio is used as a figure of merit for quantification.

Original language	British English
Pages (from-to)	506-514
Number of pages	9
Journal	Infrared Physics and Technology
Volume	46
Issue number	6
DOIs	https://doi.org/10.1016/j.infrared.2005.02.002
State	Published - Aug 2005

Keywords

Depth decay
Diffusion limit
Infrared thermography depth probing
Point spread function (PSF)
Signal to noise ratio SNR

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10.1016/j.infrared.2005.02.002

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title = "Optimizing thermography depth probing with a dynamic thermal point spread function",

abstract = "Derivation of two point spread functions PSFs suitable for infrared thermograms analysis is illustrated, based on two unique approaches, one based on depth decaying limit and one on diffusion limit. Experimental work using PMMA sample with back drilled holes and pulsed thermographic routine is utilized to show the effectiveness of deconvoluting pixel temperature transient history with suggested PSF's. Synthetic second time derivative thermograms are utilized for comparison and the signal to noise ratio is used as a figure of merit for quantification.",

keywords = "Depth decay, Diffusion limit, Infrared thermography depth probing, Point spread function (PSF), Signal to noise ratio SNR",

author = "M. Omar and M. Hassan and K. Saito",

note = "Funding Information: This study was sponsored in part by Toyota Motor Manufacturing Inc., and in part by NASA under grant (NAG3-2567). ",

year = "2005",

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doi = "10.1016/j.infrared.2005.02.002",

language = "British English",

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journal = "Infrared Physics and Technology",

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T1 - Optimizing thermography depth probing with a dynamic thermal point spread function

AU - Omar, M.

AU - Hassan, M.

AU - Saito, K.

N1 - Funding Information: This study was sponsored in part by Toyota Motor Manufacturing Inc., and in part by NASA under grant (NAG3-2567).

PY - 2005/8

Y1 - 2005/8

N2 - Derivation of two point spread functions PSFs suitable for infrared thermograms analysis is illustrated, based on two unique approaches, one based on depth decaying limit and one on diffusion limit. Experimental work using PMMA sample with back drilled holes and pulsed thermographic routine is utilized to show the effectiveness of deconvoluting pixel temperature transient history with suggested PSF's. Synthetic second time derivative thermograms are utilized for comparison and the signal to noise ratio is used as a figure of merit for quantification.

AB - Derivation of two point spread functions PSFs suitable for infrared thermograms analysis is illustrated, based on two unique approaches, one based on depth decaying limit and one on diffusion limit. Experimental work using PMMA sample with back drilled holes and pulsed thermographic routine is utilized to show the effectiveness of deconvoluting pixel temperature transient history with suggested PSF's. Synthetic second time derivative thermograms are utilized for comparison and the signal to noise ratio is used as a figure of merit for quantification.

KW - Depth decay

KW - Diffusion limit

KW - Infrared thermography depth probing

KW - Point spread function (PSF)

KW - Signal to noise ratio SNR

UR - http://www.scopus.com/inward/record.url?scp=20144368396&partnerID=8YFLogxK

U2 - 10.1016/j.infrared.2005.02.002

DO - 10.1016/j.infrared.2005.02.002

M3 - Article

AN - SCOPUS:20144368396

SN - 1350-4495

VL - 46

SP - 506

EP - 514

JO - Infrared Physics and Technology

JF - Infrared Physics and Technology

IS - 6

ER -

Optimizing thermography depth probing with a dynamic thermal point spread function

Abstract

Keywords

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