TY - JOUR
T1 - Distinguishing between materials in terahertz imaging using wide-band cross ambiguity functions
AU - Handley, James W.
AU - Fitzgerald, Anthony J.
AU - Berry, Elizabeth
AU - Boyle, Roger D.
N1 - Funding Information:
This research was funded by the EPSRC. Some of this research was performed in the IST Programme project Teravision (IST-1999-10154). We gratefully acknowledge contributions made by numerous personnel involved with Teravision,3 especially Torsten Löffler, Karsten Siebert, Nick Zinov’ev, and Martyn Chamberlain.
PY - 2004/3
Y1 - 2004/3
N2 - Terahertz pulsed imaging is a novel imaging technique whereby sub pico-second broadband THz pulses are used in the analysis of samples, through transmission and reflection modalities. This paper briefly introduces terahertz pulsed imaging and its potential medical applications, before exploring how wavelet analysis may be used in categorising terahertz imaged samples, specifically the use of the terahertz reference pulse as a mother function through wide-band cross ambiguity functions. We show that analysis using ambiguity functions can distinguish between a nylon and a resin step wedge phantom, and furthermore that the results obtained are consistent with those of traditional time domain and Fourier based techniques.
AB - Terahertz pulsed imaging is a novel imaging technique whereby sub pico-second broadband THz pulses are used in the analysis of samples, through transmission and reflection modalities. This paper briefly introduces terahertz pulsed imaging and its potential medical applications, before exploring how wavelet analysis may be used in categorising terahertz imaged samples, specifically the use of the terahertz reference pulse as a mother function through wide-band cross ambiguity functions. We show that analysis using ambiguity functions can distinguish between a nylon and a resin step wedge phantom, and furthermore that the results obtained are consistent with those of traditional time domain and Fourier based techniques.
KW - Cross ambiguity function
KW - Optical properties
KW - Terahertz imaging
UR - http://www.scopus.com/inward/record.url?scp=1442310741&partnerID=8YFLogxK
U2 - 10.1016/j.dsp.2003.12.004
DO - 10.1016/j.dsp.2003.12.004
M3 - Article
AN - SCOPUS:1442310741
SN - 1051-2004
VL - 14
SP - 99
EP - 111
JO - Digital Signal Processing: A Review Journal
JF - Digital Signal Processing: A Review Journal
IS - 2
ER -