Generation and auxiliary positioning method for live-action semantic map of smart scenic spot

A semantic map and assisted positioning technology, applied in geographic information databases, special data processing applications, structured data retrieval, etc., can solve the problem of lack of feature description, identification, and inability to meet the needs of smart scenic spots. , to make up for the lack of semantic information in the real scene
CN110866079AActive Publication Date: 2020-03-06GUILIN UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUILIN UNIVERSITY OF TECHNOLOGY
Publication Date
2020-03-06

Smart Images

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Patent Text Reader

Abstract

The invention discloses a generation and auxiliary positioning method of a live-action semantic map of a smart scenic spot. The generation and auxiliary positioning method comprises the following steps: acquiring a scenic spot panoramic image and positioning information, extracting scenic spot image features to perform semantic description and scene classification identification marking, and establishing a scenic spot live-action semantic map database; collecting a scene stereo image pair at the current position by a user; matching the photo image features and the semantic information with theimage features and the semantics of the local semantic map of the scenic spot respectively; and acquiring a scenery image closest to the photographic film, extracting the spatial position informationof the scenery image marked in the semantic map, resolving the accurate position of the user photography through a spatial forward intersection collinear equation, and displaying the position coordinates of the user on the scenic spot electronic map in real time. According to the generation and auxiliary positioning method, the fine position of the user is calculated through the main steps, and the defects of insufficient live-action semantic information and inaccurate positioning in an electronic map are overcome.
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Description

technical field

[0001] The invention relates to the field of generation and application of a real-scene map of a scenic spot, in particular to a method for generating and assisting positioning of a semantic map of a smart scenic spot based on recognition, matching and positioning of a real-scene image. Background technique

[0002] The electronic map of the scenic spot contains the guide landmarks and information of the main scenic spots. However, due to the two-dimensional symbolic expression of the information, it is limited by the scale and detail of the information, and it is still impossible to achieve accurate positioning in the real environment. There is still some deviation in the exact location and its real tour environment. Especially in an environment where the semantics of scenic spots are similar and close, tourists cannot quickly identify their precise location with only electronic maps, exposing the limitations and shortcomings of commercial electronic maps. ...

Claims

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