Plan Map Generation Using 3D Coordinate Adjustment
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Solution Overview
Problem
Existing image processing technologies generate distorted plan maps when vehicles or objects not recorded in the database are displayed, making it difficult for users to view and require significant processing for database updates.
Innovation Solution
An image processing apparatus and method that acquire images with calculable three-dimensional coordinates, extract and adjust the upper surface of objects on a reference surface to match the coordinate axis value, generating a plan map that is easy to view without increasing processing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a perspective transform is applied to generate a plan map using existing image processing technology, then the plan map can be generated quickly, but objects not recorded in the database are displayed in a distorted state making it difficult for users to view
Solution Approach 1:
The system performs preliminary actions by extracting the upper surface of objects and calculating their three-dimensional coordinates before generating the plan map. This preliminary processing allows the system to prepare corrected positional information in advance, so that when the perspective transform is applied, objects are already positioned correctly on the plan map without distortion, resolving the contradiction between fast generation and easy viewing.
2Measurement precision
If a database is sequentially updated to include pseudo-images of objects, then object recognition accuracy improves, but the processing amount increases enormously
Solution Approach 1:
The system extracts only the essential upper surface information and three-dimensional coordinates of objects rather than storing complete pseudo-images in the database. By taking out only the necessary geometric data needed for plan map generation, the system achieves accurate object recognition and correct positioning without the enormous processing burden of maintaining a comprehensive database of pseudo-images.
3Manufacturing precision
If the upper surface of objects is extracted and three-dimensional coordinates are adjusted to match the reference surface, then object positioning accuracy on the plan map improves, but the processing time increases
Solution Approach 1:
The system replaces complex mechanical or iterative adjustment methods with a direct mathematical approach. By calculating the three-dimensional coordinates of the upper surface and applying a coordinate transformation that directly maps objects to the reference surface, the system achieves high positioning accuracy without time-consuming iterative adjustments or complex mechanical processing.
Data Source
AI summary
An image processing device for displaying a planar map which can be easily viewed by a user without increasing the amount of processing. A planar map generating device (103) is provided with: an image acquisition section (301) for acquiring images wherein objects are imaged and the three-dimensional coordinates of the objects can be calculated; a coordinate acquisition section (302) for extracting the upper surface of a first object existing on a reference surface from the images to acquire the coordinates of the feature point of the extracted upper surface; and a first planar map generating section (303) for generating a first planar map by adjusting the size and position of the upper surface so that the values of the coordinates equivalent to the direction perpendicular to the reference surface become the same as those of the reference surface by using the acquired coordinates.