A construction method of a three-dimensional GIS dynamic model
A dynamic model and construction method technology, applied in 3D modeling, image data processing, instruments, etc., can solve problems such as cumbersome steps of video analysis algorithms
Active Publication Date: 2019-04-09
苏州维众数据技术有限公司
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Problems solved by technology
The steps of this video analysis algorithm are cumbersome and require multi-step preprocessing, and various features need to be artificially designed.
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[0049] Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent replacements or equivalent transformations fall within the protection scope of the present invention.
[0050] Such as figure 1 flow chart and figure 2 As shown in the flow chart of the three-dimensional coordinate calculation method, the present invention discloses a construction method of a three-dimensional GIS dynamic model, comprising the following steps:
[0051] S1. Arrange the cameras in the 3D scene, and store the camera information in the database. If there are already cameras, the information of the existing cameras can be entered into the database;
[0052] Camera information includes:
[0053] The data includes the camera ID;
[0054]...
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The invention discloses a construction method of a three-dimensional GIS dynamic model, and the method comprises the following steps: S1, arranging a camera in a three-dimensional scene, and storing the camera information in a database; S2, determining a camera covering an area where the target object is located, and calling camera information from a database; S3, obtaining coordinate informationand attribute information of the target object from a video output by the camera through a video analysis algorithm; S4, calculating three-dimensional coordinates of the target object; S5, generatinga corresponding three-dimensional model; And S6, superposing the three-dimensional model on the three-dimensional map. According to the invention, a person is obtained from a video of an existing video surveillance camera through a machine vision AI technology; Attributes and image coordinates of a vehicle and an object are obtained, coordinate conversion from the image coordinates to three-dimensional geographic information is achieved through parameter information of the camera, human, vehicle and object models extracted from a video can be superposed in the three-dimensional coordinates, and high reduction of the three-dimensional geographic information and a real environment is achieved.
Description
technical field [0001] The invention relates to a method for constructing a dynamic model, in particular to a method for constructing a three-dimensional GIS dynamic model based on computer vision technology, and belongs to the field of three-dimensional model construction. Background technique [0002] Geographic Information System (Geographic Information System or Geo-Information system, GIS) is sometimes called "geographic information system". It is a specific and very important spatial information system. It is a technical system that collects, stores, manages, calculates, analyzes, displays and describes the relevant geographical distribution data in the entire or part of the earth's surface (including the atmosphere) space with the support of computer hardware and software systems. GIS technology integrates the unique visual effects and geographic analysis functions of maps with general database operations (such as query and statistical analysis, etc.). [0003] At p...
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IPC IPC(8): G06T17/05
CPCG06T17/05
Inventor 胡德斌
Owner 苏州维众数据技术有限公司