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Methods and Prospects of Road and Linear Structure Automatic Extraction from Remote Sensing Images
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作者 LIU Zhengrong LIU Zhengrong, Research Center of Spatial Information and Digital Engineering, Wuhan University, 129 Luoyu Road, Wuhan 430079, China. 《Geo-Spatial Information Science》 2003年第2期63-68,共6页
Automatic extraction of road and linear structure from remote sensing images is a very important problem. This paper analyses several existing methods of the automatic road and linear structure extraction by using som... Automatic extraction of road and linear structure from remote sensing images is a very important problem. This paper analyses several existing methods of the automatic road and linear structure extraction by using some multi-spectral remote sensing images acquired from different spatial resolutions, districts and road characteristics. Their advantages and disadvantages have been generalized. 展开更多
关键词 EXTRACTION linear structures remote sensing image PHOTOGRAMMETRY
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清代广东学政署的始末 被引量:2
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作者 陈以沛 《岭南文史》 1993年第4期50-54,共5页
清代学政署,是主管我省文化教育行政的地方官署,全称为广东提督学政署,简称学政、学院、使院、试院、学署或学召。驻居广州的学政署,在文教历史的发展中和文人学子的思想上,曾占有重要的地位。由于它对广东文教事业的成败关系重大,故又... 清代学政署,是主管我省文化教育行政的地方官署,全称为广东提督学政署,简称学政、学院、使院、试院、学署或学召。驻居广州的学政署,在文教历史的发展中和文人学子的思想上,曾占有重要的地位。由于它对广东文教事业的成败关系重大,故又被称为“系通一省文风”的教化中枢。省内各府、州、县的府学, 展开更多
关键词 督学政 文教事业 府学 使院 提学道 乾隆时期 教育行政 革命党人 王植 惠士奇
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