Road Structure Investigation via Map and Point Cloud Integration
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Solution Overview
Problem
The existing road structure management system faces challenges in identifying specific structures for investigation due to the presence of multiple structures of the same type, and difficulties in clearly identifying structures from image data captured by vehicle cameras.
Innovation Solution
A structure investigation assistance system that includes a first storage for continuous road image data, a second storage for detailed structure information associated with map positions, and selection and presentation means to display relevant image data and point cloud data for investigation requests, facilitating the identification of structures through integrated map and data presentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple road structures of the same type are managed using a map-based system, then detailed information can be obtained by selecting specific structures, but it becomes difficult to identify which specific structure needs investigation
Solution Approach 1:
The system segments the identification process into two stages: first displaying multiple structure types on a map for broad selection, then displaying thumbnail images of captured video data for each structure type to enable precise identification. This segmentation resolves the contradiction by allowing users to efficiently navigate from general structure locations to specific structures needing investigation.
Solution Approach 2:
Thumbnail images of captured video data serve as an intermediary between the map display and detailed structure information. These thumbnails provide visual confirmation of each structure's current state, enabling users to identify which specific structure requires investigation without having to examine detailed information for all structures.
2Productivity
If road structures are identified using image data from vehicle cameras, then real-time capture is achieved, but structures are difficult to identify when not clearly shown in the image data
Solution Approach 1:
The system transitions from relying solely on 2D map coordinates to incorporating visual dimensionality through thumbnail images of captured video data. This additional visual dimension allows users to accurately identify structures even when the original capture images are not clearly showing the structure, by providing alternative visual perspectives in the thumbnail gallery.
3Loss of information
If comprehensive structure information is stored and displayed, then detailed investigation data is available, but the system complexity increases
Solution Approach 1:
The system dynamically adjusts the level of information display based on user interaction. Initially, only essential structure types and locations are shown on the map. When a structure type is selected, thumbnail images are dynamically loaded and displayed. This dynamic approach provides comprehensive information when needed while maintaining a simple interface during normal operation.
Data Source
AI summary
A structure investigation assistance system comprises: a first storage unit that stores image data of a road captured continuously by a camera; a second storage unit that stores detailed information about a structure around the road in association with position information about the structure on a map, the detailed information on the structure being configured using point cloud data obtained by 3D scanning the structure; a first selection unit that selects, from the first storage unit, image data targeted for an investigation request in a case where a request for an investigation of the structure is received; a second selection unit that selects, from the second storage unit, detailed information about the structure targeted for the investigation request; and an information presentation unit that presents a map indicating a location of the structure, the image data selected, and the detailed information about the structure.