Terrain Route Analysis Using Restricted Regions and Skeleton Paths

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Solution Overview

Problem

Conventional approaches for determining routes based on terrain information are imprecise and fail to account for all possible paths within a location, particularly due to the lack of consideration for terrain elevations and restricted regions.

Innovation Solution

A system that determines restricted regions based on terrain elevations and slopes, using straight skeleton analysis to identify paths that avoid these regions, and provides an interface for visualizing and selecting optimal routes considering entity type and distance thresholds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional approaches are used to determine routes based on terrain information, then the system is simple to implement, but the route determination precision is poor and does not account for all possible paths

Engineering Contradiction:
Improveroute determination precisionVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system segments the terrain into restricted regions based on elevation changes and slope thresholds. By dividing the continuous terrain into discrete restricted regions that cannot be traversed, the system enables precise path determination while maintaining manageable computational complexity through region-based analysis rather than continuous terrain processing

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system introduces a topological skeleton analysis that transforms the 2D terrain map into a graph structure with nodes and edges. This dimensional transformation allows the system to identify all possible paths through the location by analyzing the topological relationships between restricted regions, significantly improving route determination precision

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If terrain elevation analysis is performed to determine restricted regions, then route planning accuracy is improved, but computational complexity increases

Engineering Contradiction:
Improveroute planning accuracyVSAvoidcomputational complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses slope threshold parameters to convert continuous elevation data into discrete restricted region classifications. By applying threshold-based parameter changes, the system maintains route planning accuracy while reducing computational complexity through binary classification (restricted vs. non-restricted) rather than continuous analysis

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system performs preliminary analysis to identify and mark restricted regions before path determination. By pre-processing the terrain data to establish which regions cannot be traversed, the system reduces the computational burden of subsequent pathfinding operations while ensuring accurate route planning

Inventive Principle:
Principle #10Preliminary action

3Loss of information

If straight skeleton analysis is used to identify all possible paths, then completeness of path identification is improved, but processing time increases

Engineering Contradiction:
Improvecompleteness of path identificationVSAvoidprocessing time
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The system extracts the topological skeleton from the complete terrain map by identifying the structural framework formed by restricted regions. This extraction process captures all possible paths through the location while eliminating redundant computational details, achieving complete path identification with reduced processing time

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP3575745B1Terrain analysis for automatic route determination
Publication Date: 2026.02.11 PALANTIR TECHNOLOGIES INC
  • EP3575745B1 patent drawingFigure 1
  • EP3575745B1 patent drawingFigure 2
  • EP3575745B1 patent drawingFigure 3

AI summary

Systems, methods, and non-transitory computer readable media are provided for determining routes within a location. Location information for a location may be obtained. The location information may include terrain information for the location. A set of restricted regions within the location may be determined based on the location information. A set of paths within the location may be determined based on the set of restricted regions. An interface through which information describing the set of paths within the location is accessible may be provided.