3D Model Alignment for Landslide Volume Calculation
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Solution Overview
Problem
Existing methods for calculating the amount of earth displaced during a landslide, such as laser measurement, are time-consuming and costly.
Innovation Solution
An object amount calculation apparatus that compares a three-dimensional model of a space without the object (earth) to a three-dimensional model with the object, aligning the models based on attributes to calculate the difference in volume or weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laser measurement is used to calculate the amount of earth displaced during a landslide, then measurement precision is improved, but productivity deteriorates due to time-consuming and costly processing
Solution Approach 1:
The patent creates three-dimensional models (copies) of the landslide area from image data, which can be processed computationally without requiring time-consuming laser measurement operations. These digital models allow for rapid calculation of earth displacement volumes while maintaining measurement accuracy through pixel-based volumetric analysis.
Solution Approach 2:
The patent replaces the mechanical laser measurement system with a computational image processing system. Instead of using physical laser scanners that require sequential measurement operations, the system uses captured images processed through computer algorithms to calculate three-dimensional models and displacement volumes, significantly improving processing speed and productivity.
2Measurement precision
If traditional three-dimensional model alignment methods are used, then measurement precision is maintained, but device complexity increases due to multiple alignment parameters
Solution Approach 1:
The patent extracts and utilizes specific attribute information (such as terrain features, vegetation patterns, or structural elements) from the three-dimensional models to perform alignment. By focusing on key attributes rather than attempting to align all model parameters simultaneously, the system reduces computational complexity while maintaining alignment precision through attribute-based matching algorithms.
Data Source
AI summary
An object amount calculation apparatus includes: a receiver configured to obtain a first three-dimensional model and a second three-dimensional model different from the first three-dimensional model, each of the first three-dimensional model and the second three-dimensional model representing a same space, each of the first three-dimensional model and the second three-dimensional model being constituted with regions having respective attributes; and a processor configured to: align the first three-dimensional model and the second three-dimensional model based on at least one attribute of the first three-dimensional model and the second three-dimensional model; calculate, for each of the attributes, a difference between the first three-dimensional model aligned and the second three-dimensional model aligned; and output (i) a total amount of differences corresponding to two or more attributes among the attributes and (ii) information on the two or more attributes.