DB50/T 1643-2024 1：500地形图倾斜摄影及机载三维激光扫描测绘技术规程

ICS07.040

CCSA75

DB50

重庆市地方标准

DB50/T1643—2024

1：500地形图倾斜摄影及机载三维激光扫

描测绘技术规程

2024-07-15发布2024-10-15实施

重庆市市场监督管理局发布

DB50/T1643-2024

目  次

前言...............................................................................................................................................................I

1范围.........................................................................................................................................................1

2规范性引用文件....................................................................................................................................1

3术语和定义.............................................................................................................................................1

4基本要求.................................................................................................................................................2

4.1测绘方式.........................................................................................................................................2

4.2技术流程.........................................................................................................................................2

4.3成果类型及格式.............................................................................................................................2

4.4测量基准.........................................................................................................................................2

4.5投影方式.........................................................................................................................................2

4.6产品分幅与编号.............................................................................................................................2

4.7精度指标.........................................................................................................................................2

4.8资料收集.........................................................................................................................................3

4.9仪器设备.........................................................................................................................................4

5控制测量.................................................................................................................................................4

5.1一般规定.........................................................................................................................................4

5.2平面控制测量.................................................................................................................................4

5.3高程控制测量.................................................................................................................................5

6倾斜摄影数据获取与实景三维模型制作............................................................................................5

6.1航摄计划与航摄设计.....................................................................................................................5

6.2航摄实施.........................................................................................................................................5

6.3像控点布设与测量.........................................................................................................................5

6.4空中三角测量.................................................................................................................................5

6.5实景三维模型制作.........................................................................................................................6

7三维激光点云数据获取与处理............................................................................................................6

7.1三维激光点云密度.........................................................................................................................6

7.2三维激光点云重叠度.....................................................................................................................6

7.3坐标系统转换.................................................................................................................................6

7.4高程基准转换.................................................................................................................................6

7.5点云数据质量检查.........................................................................................................................6

7.6点云滤波分类.................................................................................................................................6

81：500地形图要素采集.......................................................................................................................8

8.1采集要求.........................................................................................................................................8

8.2基于实景三维矢量要素采集.........................................................................................................8

I

DB50/T1643-2024

8.3基于三维激光点云的矢量要素采集.............................................................................................8

8.4外业调绘及修补测.........................................................................................................................8

9成果检查与验收....................................................................................................................................9

9.1倾斜摄影质量检查.........................................................................................................................9

9.2实景三维模型质量检查.................................................................................................................9

9.3机载三维激光点云成果数据质量检查.........................................................................................9

9.41：500地形图数据成果检查........................................................................................................9

10资料提交...............................................................................................................................................10