Method of carrying out urban municipal general survey on basis of unmanned-aerial-vehicle low-altitude aerial-photography system

Abstract

The invention discloses a method of carrying out an urban municipal general survey on the basis of an unmanned-aerial-vehicle low-altitude aerial-photography system. The method comprises the followingsteps: carrying out flight by an unmanned aerial vehicle to obtain images better than 0.05-m resolution; producing large-scale orthophotos; carrying out various types of infrastructure interpretationprocessing on the remote-sensing images by indoor work; producing working base graphs by indoor work; assisting supplementary detection and a survey of infrastructure attributes by outdoor work; andarranging urban infrastructure data by indoor work to form image data and vector data required for the infrastructure general-survey of a target city. An innovation point of the method is a job methodof taking image interpretation of indoor work as primary, and verification of outdoor work as supplementary, and the method changes data collection means of urban infrastructure general-surveys taking field surveying and mapping of outdoor work as primary in the prior art, saves a lot of manpower, material resources and time of outdoor work, and enables working efficiency of the urban infrastructure general-survey to be multiplied, survey costs to be reduced, and the survey method to be more scientific and reasonable.

Description

technical field [0001] The invention belongs to the technical field of aerial remote sensing image interpretation and processing, and in particular relates to a method for urban municipal census based on an unmanned aerial vehicle low-altitude aerial photographing system, which can be applied to urban infrastructure census. Background technique [0002] Urban infrastructure census, mainly through a comprehensive census of urban roads, bridges, street lighting, rivers, waters, sewage treatment, sanitation facilities, garbage disposal stations, green spaces, street trees, parks and other ancillary facilities , comprehensively grasp the basic situation of urban municipal utilities, landscaping, and environmental sanitation industry infrastructure, provide a basis for urban maintenance budgets, and provide basic data support for urban construction management decisions. [0003] The existing census method is mainly based on the outside industry, using dynamic GPS and other survey...

AI Technical Summary

Problems solved by technology

However, the resolution of satellite images currently provided is mainly between 0.3m and 5m, and the image texture is blurred, which cannot accurately and completely interpret the target objects and cannot meet the accuracy requirements of large-scale urban infrastructure censuses, and a large number of The data needs to be verified and re-tested in the field, which affects the work progress and cost

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