volume | PIER Journals

Abstract

Traditional passive millimeter wave imaging (PMMW) mechanism measures intensity-only radiometric energy of the scene, and the limited information restricts the subsequent process of target detection and recognition. Polarimetric phenomena provide an extra dimension of information and are utilized to improve the PMMW imaging performance. Based on linear polarization characteristics for terrain identification in our previous work, the horizontal, vertical and 45 degree linearly polarimetric images are obtained by manually changing the polarization orientation of the radiometer with a selfdesigned rotating installation. Then the related Stokes parameters and the linearly polarized angle are calculated for principal component analysis (PCA). Pixels with similar polarimetric characteristic are clustered in the score-plot feature space. Then the clusters are extracted to realize object segmentation of the raw image. Three types of objects including metallic stuff, lawn and concrete park are finally segmented, demonstrating that the proposed segmentation is feasible and effective.

1. Isiker, H., C. Ozdemir, and I. Unal, "Millimeter-wave band radiometric imaging experiments for the detection of concealed objects," 2015 IEEE Radar Conference, 23-26, Johannesbur, 2015. Google Scholar

2. Chen, H.-M., S. Lee, R. M. Rao, M. A. Slamani, and P. K. Varshney, "Imaging for concealed weapon detection: A tutorial overview of development in imaging sensors and processing," IEEE Signal Processing Magazine, Vol. 22, No. 2, 52-61, 2005.
doi:10.1109/MSP.2005.1406480 Google Scholar

3. Yujiri, L., "Passive millimeter wave imaging," 2006 IEEE MTT-S International Microwave Symposium Digest, 98-101, 2006.
doi:10.1109/MWSYM.2006.249938 Google Scholar

4. Manabu, I., N. Shunichi, and N. Tatsuo, "Near-field thermal imaging by passive millimeter-wave microscopy," 2014 Asia-Pacific Microwave Conference, APMC, 1034-1036, 2014. Google Scholar

5. Zrazhevskij, A. Y., V. A. Golunov, D. M. Ermakov, M. T. Smirnov, E. P. Novichikhin, S. P. Golovachev, and E. V. Konkov, "The development of radiophysical methods for the polarization, including stereo) images acquisition in millimeter range related to problems of objects recognition, navigation, emergency management, security control and antiterroristic activity," Proceedings of IEEE International Geoscience and Remote Sensing Symposium, 2258-2261, 2005. Google Scholar

6. Nghiem, S. V., M. E. Veysoglu, J. A. Kong, and R. T. Shin, "Polarimetric passive remote sensing of a periodic soil surface: Microwave measurements and analysis," Journal of Electromagnetic Waves and Applications, Vol. 5, No. 9, 997-1005, 1991.
doi:10.1163/156939391X01021 Google Scholar

7. Bernacki, B. E., J. F. Kelly, D. M Sheen, D. L. McMakin, J. R. Tedeschi, T. E. Hall, B. K. Hatchell, and P. L. J. Valdez, "Phenomenology studies using a scanning fully polarimetric passive W-band millimeter wave imager," SPIE Proceedings: Passive and Active Millimeter-Wave Imaging XIV, 80220C1-80220C10, 2011. Google Scholar

8. Wikner, D. A. and G. Samples, "Polarimetric passive millimeter-wave sensing," SPIE Proceedings: Passive Millimeter-Wave Imaging Technology V, 86-93, 2011. Google Scholar

9. Bernacki, B. E., J. F. Kelly, D. M. Sheen, D. L. McMakin, J. R. Tedeschi, R. V. Harris, A. Mendoza, T. E. Hall, B. K. Hatchell, and P. L. J. Valdez, "Passive fully polarimetric W-band millimeter-wave imaging (Invited Paper)," SPIE Proceedings: RF and Millimeter-Wave Photonics II, 82590F1-82590F11, 2012. Google Scholar

10. Liao, S., N. Gopalsami, T. W. Elmer, E. R. Koehl, A. Heifetz, K. Avers, E. Dieckman, and A. C. Raptis, "Passive millimeter-wave dual-polarization imagers," IEEE Transactions on Instrumentation and Measurement, Vol. 61, No. 7, 2042-2050, 2012.
doi:10.1109/TIM.2012.2183032 Google Scholar

11. Wilson, J. P., C. A. Schuetz, E. L. Stein, Jr., J. P. Samluk, D. G. Mackrides, and D. W. Prather, "Polarization difference imaging for millimeter-wave in a desert environment," SPIE Proceedings: Millimeter-Wave and Terahertz Sensors and Technology III, 78370E1-78370E6, 2012. Google Scholar

12. Gopalsami, N., S. Liao, T. Elmer, E. R. Koehl, and A. C. Raptis, "Evaluation of passive millimeter wave system performance in adverse weather conditions," SPIE Proceedings: Passive and Active Millimeter-Wave Imaging XV, 83620I1-83620I6, 2012. Google Scholar

13. Yeom, S., D.-S. Lee, H. Lee, J.-Y. Son, and V. P. Guschin, "Vector clustering of passive millimeter wave images with linear polarization for concealed object detection," Progress In Electromagnetics Research Letters, Vol. 39, 169-180, 2013.
doi:10.2528/PIERL13021907 Google Scholar

14. Wilson, J. P., C. A. Schuetz, C. E. Harrity, S. Kozacik, D. L. K. Eng, and D. W. Prather, "Measured comparison of contrast and crossover periods for passive millimeter-wave polarimetric imagery," Optics Express, Vol. 21, No. 10, 12899-12906, 2013.
doi:10.1364/OE.21.012899 Google Scholar

15. Kim, W.-G., N.-W. Moon, H.-K. Kim, and Y.-H. Kim, "Linear polarization sum imaging in passive millimeter-wave imaging system for target recognition," Progress in Electromagnetics Research, Vol. 136, 175-193, 2013.
doi:10.2528/PIER12110709 Google Scholar

16. Lu, X., Z. Xiao, J. Xu, and H. Huo, "3D millimeter wave image by combined active and passive system," Progress In Electromagnetics Research Letters, Vol. 50, 7-12, 2014.
doi:10.2528/PIERL14090402 Google Scholar

17. Lu, X., L. Wu, Z. Xiao, and J. Xu, "Ranging technique based on conically scanned single pixel millimeter wave radiometer," International Journal of Engineering Research in Africa, Vol. 12, 43-52, 2014.
doi:10.4028/www.scientific.net/JERA.12.43 Google Scholar

18. Lu, X., Z. Xiao, and J. Xu, "Linear polarization characteristics for terrain identification at millimeter wave band," Chinese Optics Letters, Vol. 12, No. 10, 1012011-1012015, 2014. Google Scholar

19. Prats-Montalbana, J. M., A. de Juanb, and A. Ferrera, "Multivariate image analysis: A review with applications," Chemometrics and Intelligent Laboratory Systems, Vol. 107, No. 1, 1-23, 2011.
doi:10.1016/j.chemolab.2011.03.002 Google Scholar

Dr. Xuan Lu

Dr. Furong Peng

Dr. Guanghui Li

Dr. Zelong Xiao

Dr. Taiyang Hu