相变热图序列中等温线的自动提取

new segmentation method of image sequence is proposed in order to get the isotherm from phase-change thermography sequence. The original image sequence are transformed into a series of synthesized images (SI) by spatio-temporal conversion, and the underlying relationship among SI is exploited according to the need of harmony, then the sequence image segmentation can be implemented by coordination-optimization model on two levels. The lower one searches for a global optimal solution with dynamic programming under determined threshold coefficient; the upper one computes the amendment based on the results of the lower layer to update the threshold coefficient of the lower one. Additionally, the illumination model is formulated to describe the threshold coefficient. This idea reduces the computation load of the upper layer and augments the robustness of the algorithm. The eventual results meet the need of harmony and also demonstrate the efficiency of the segmentation method.