无人驾驶车需要更详细、精确的地图
Apollo 高精度地图源码
Navigation Map vs. HD Map
A high definition map contains a huge amount of driving assistance information
- the accurate three-dimensional representation of the road network.
- the layouts of intersections and the locations of signposts.
- a lot of semantic information.
- The map may report what different colors of traffic lights mean.
- It might also indicate the speed limit for a road.
- and where the left turn lane begins.
- precision
- Navigation Map: meter-level precision.
- HD Map: centimeter-level precision.

Apollo的高精度地图提供厘米级别的精确度,包含丰富的道路信息、交通标志和语义信息,协助车辆实现精准定位。通过地标匹配、预处理、坐标转换和数据融合完成车辆的定位。同时,高精度地图在感知软件中帮助提前识别交通信号灯,并在规划软件中指导行驶路径,节省计算资源。
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