目的：为了抑制标记线对图像分割的影响，提出了一种基于最小值-方差能量图的纹理分析方法。
OBJECTIVE: a new texture analysis method is proposed, based on a minimum-variance energy map, to suppress the effect of tag lines on image segmentation.
综述了高压运行油气管线在役焊接修复的意义、分类、工艺特点和存在的主要问题，总结分析了最近几年国外在在役焊接烧穿和最小线能量方面的最新研究成果。
On he base of analyzing the characteristic of oil & gas pipelines and present status of repairing by welding of our country, the key problem of developing in-service repairing by welding in our count.
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