What constitutes a useful and meaningful terahertz image?

J.M. Chamberlain1, N.N. Zinovev2, A.J. Fitzgerald3, E. Berry3, G.C. Walker3, J.W. Handley, M.A. Smith3, R.E. Miles
1University of Leeds, Leeds, West Yorkshire, GB
2Sch. of Electron. & Electr. Eng., Leeds Univ., UK
3Academic Unit of Medical Physics, Center of Medical Imaging Research, University of Leeds, Leeds, UK

Tóm tắt

This contribution attempts to answer the questions of how THz images are best processed, analyzed, presented, classified and interpreted, especially within a clinical setting. The solutions to these problems are reviewed within the context of recent imaging work on tumours and dental tissue, largely conducted by the Teravision group. It is concluded that compound images, especially those involving pulse broadening as an image parameter, are highly promising routes to visualisation. The possibility of using computer vision and data compression techniques is also discussed.

Từ khóa

#Mie scattering #Rayleigh scattering #Biomedical materials #Particle scattering #Frequency #Water #Biological materials #Filters #Biomedical imaging #Physics

Tài liệu tham khảo

10.1109/CLEO.2002.1034417 knobloch, 0, Medical imaging: an investigation of bisto-pathological samples, Physics in Medicine and Biology Accepted for publication 10.1007/978-94-011-5760-5_1 chamberlain, 2001, The interaction between Terahertz radiation and biological tissue, Physics in Medicine and Biology, 46 10.1063/1.1750906 10.1021/jp960141g 10.1109/22.744288 cole, 2001, Terahertz Imaging and Spectroscopy of human skin in vivo, Laser Plasma Generation and Diagnostics, 4286, 137 loeffler, 0, Visualization and Classification in biomedical pulsed imaging, Physics in Medicine and Biology Accepted for publication fitzgerald, 2002, Effects of frequency on image quality in THz pulsed images, SPIE Proc Medical Imaging, 10.1117/12.465548 loemer, 2001, Terahertz dark-field imaging of biomedical tissue, Optics Express, 9 10.1364/OL.23.001114 corchia, 1999, Application of terahertz technology to medical imaging, Terahertz Spectroscopy and Applications, 3823, 209 10.1364/OL.27.001312 ciesla, 2000, Biomedical app 1ications of terahertz pulse imaging Commercial and Biomedical Applications of Ultrafast lasers II, 3934, 73 woodward, 2041, Terahertz pulse imaging of in-vitro basal cell carcinoma samples, Conf Lasers and Electro-Optics 2001, 329 10.1364/OL.25.001122 woodward, 0, Terahcrtz pulse imaging in reflection geometry of human skin cancer and skin tissue, Physics in Medicine and Biololkhy Accepted for Dublication 10.1364/OL.20.001716 berry, 0, Evaluation of image quality in terahertz pulsed imaging using test objects, Physics in Medicine and Biology Accepted for publication 10.1109/2944.571768 sonka, 1999, Image Processing Analysis and Machine Vision castleman, 1996, Digital Image Processing Englewood Cliffs 10.1016/S0026-2692(01)00093-3 handley, 0, Wavelet compression in medical THz pulsed imaging, Physics in Medicine and Biology Accepted for publication berry, 2003, Time Frequency analysis in THz pulsed imaging, Computer Vision Beyond the Visible Spectrum eds Bir Bhanu and Ionnis Pavlidis