Assessment of GIAHS in Shizuoka: The Traditional Tea-grass Integrated System

<正>1 Introduction In 2013,Chagusaba,which is traditional tea-grass integrated system in Shizuoka,were accepted as new world heritage site of agriculture.Shizuoka prefecture occupies a variety of elevations,from 0 to 3000m or more above sea level.Because of the diversity of land features and climates,this area produces 167 agricultural commodities.In addition,a lot of traditional agriculture and over200 local native varieties of crops have been conserved in Shizuoka     

三维激光扫描技术在古建筑图纸绘制中的应用

古建筑的造型多样、结构复杂且装饰丰富,其边缘线条难以用标准的直线、弧线表达,使用传统方法进行测绘具有很大的局限性。以盐城市大洋湾生态公园的盐渎古镇为例,探索三维激光扫描技术在古建筑平立剖绘制中的应用。首先,在室内外布设足够数量的黑白靶标,并用自由架站的方式获取古建筑的三维点云。接着,提取靶标的中心坐标作为公共点,对各站点云实施配准。最后,从点云中裁剪出对应的点云切片并利用主成分分析实现自动旋转变换,结合边缘提取算法与人工修正操作,绘制出古建筑的平面、立面、剖面。测试结果表明,与传统测绘方法相比,具有生产速度快、采集要素全、几何精度高、数据可追溯的优势。