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| Automatical Extraction of Isotherm from PhaseChange Thermography Sequence |
| WANG XiaoNian, FENG ZuRen, ZHANG Miao |
| State Key Laboratory for Manufacturing Systems Engineering, Systems Engineering Institute, Xi’an Jiaotong University, Xi’an 710049 |
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Abstract A new segmentation method of image sequence is proposed to get the isotherm from phasechange thermography sequence. The original phasechange thermography sequence is transformed into a series of relative synthesized images by compression and conversion. The final isotherms are extracted from the segmentation of synthesized images. To remove the specular reflection and get the results which meet the need of similarity, the illumination model is formulated and the parameters are obtained by coordinationoptimization. Then the dynamic programming algorithm is employed to get the optimal segmentation. The proposed method could not only remove the specular reflection of the characteristic images, but also reduce the computational complexity. Moreover, it augments the robustness of the algorithm. The eventual results are rational and they could also demonstrate the efficiency of the proposed method.
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Received: 19 January 2006
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2007, Vol. 20 
