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提出一种提取航拍图像中线特征的方法。首先利用canny算子检测出图像的边缘,再利用改进的层进式hough变换对得到的边缘图提取线特......
初步研究了次转置矩阵、次对称矩阵和次单位矩阵的基本性质....
Influence of a Program Combining Amusement and Exercise on Subjective Well-Being: Six-Month Interven
Background: Health promotion for the elderly mainly targets improvements in physical function, and a lack of strengtheni......
