Smart city CIM road mapping method based on unmanned aerial vehicle aerial photography
A technology of drones and roads, applied in the field of image processing, can solve the problem of low mapping efficiency and achieve the effect of improving the efficiency of mapping
Inactive Publication Date: 2022-04-05
武汉卓尔信息科技有限公司
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[0005] The purpose of the embodiments of the present invention is to provide a smart city CIM road mapping method based on aerial photography of UAVs, aiming to solve the problem of low mapping efficiency in existing city information models. The present invention extracts features from pictures obtained from aerial photography, thereby Call the matching picture for texture to improve the efficiency of texture
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[0055] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0056] It can be understood that the terms "first", "second" and the like used in the present application may be used to describe various elements herein, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first xx script could be termed a second xx script, and, similarly, a second xx script could be termed a first xx script, without departing from the scope of the present application.
[0057] The CIM basic platform is based on the basic geographic information of the city, establi...
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The invention is suitable for the technical field of image processing, and particularly relates to a smart city CIM road mapping method based on unmanned aerial vehicle aerial photography, and the method comprises the steps: obtaining city data, and constructing a city information basic model which at least comprises a road model and a road center line; aerial photography data are obtained, and a mapping center database is established; a map center database is inquired according to the aerial photography data, a map data set is obtained, and the map data set comprises all maps corresponding to the aerial photography data; and classifying and identifying the road models in the urban information basic model, and endowing different types of road models with different maps. According to the invention, real image acquisition is carried out by means of aerial photography and the like, then the map database is established, feature extraction is carried out on the acquired real image, and the corresponding preset map is called from the map database according to the obtained image features, so that the construction of the city information model is completed, and the map pasting efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a smart city CIM road map method based on drone aerial photography. Background technique [0002] Based on building information model, geographic information system, Internet of Things and other technologies, urban information model integrates urban ground and underground, indoor and outdoor, historical status and future multi-dimensional and multi-scale information model data and urban perception data to construct urban information in three-dimensional digital space organic complex. [0003] The CIM basic platform is based on the basic geographic information of the city, establishes three-dimensional digital models such as buildings and infrastructure, and expresses and manages the three-dimensional space of the city. It is a basic operating platform for urban planning, construction, management, and operation. It is the basic, critical and physical informat...
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IPC IPC(8): G06V20/17G06F16/51G06F16/54G06T17/00
Inventor 周显敬刘虎汪寒雨蔡明星
Owner 武汉卓尔信息科技有限公司