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When did the aerial photography of the homestead in Hebei Province begin?
Aerial photography of residential areas in Hebei Province began in 2008.

The land survey confirmed the right of aerial survey of rural homestead in 2008.

The general rural homestead image map is an orthophoto map which is uniformly tendered by the local land department and shot by a professional surveying and mapping company with drones. The scale of the rural homestead image map is 1:500, and the roads, houses and cars in the village can be clearly seen.