3D Bounding Cylinder Model for Pedestrian Detection

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Solution Overview

Problem

Current pedestrian detection systems in computing devices lack an effective method for accurate three-dimensional representation of pedestrians, which is crucial for preventing collisions in autonomous vehicles.

Innovation Solution

A computer-implemented system using a three-dimensional bounding cylinder model, determined by numerical values for height and radius parameters, to represent pedestrians, enabling accurate 3D detection and positioning within the vehicle's environment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional pedestrian detection methods are used, then the system is simpler to implement, but the three-dimensional representation accuracy is insufficient

Engineering Contradiction:
Improvethree-dimensional representation accuracyVSAvoiddetection system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent transitions from traditional two-dimensional detection to three-dimensional representation by introducing a bounding cylinder model with height and radius parameters. This dimensional change enables accurate 3D pedestrian representation while maintaining computational efficiency through parameter-based modeling rather than complex geometric reconstruction.

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

Solution Approach 2:

The patent represents pedestrians using a simplified parameter set (height, radius, and position) within a bounding cylinder model. This parameterization approach achieves accurate 3D representation without requiring complex geometric data, thereby improving measurement precision while keeping the system relatively simple.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If more detailed three-dimensional pedestrian models are used, then collision avoidance accuracy improves, but computational requirements and system complexity increase

Engineering Contradiction:
Improvecollision avoidance accuracyVSAvoidmodeling complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the complex problem of 3D pedestrian representation into a simplified bounding cylinder model with a few key parameters (height, radius, position). This segmentation approach maintains collision avoidance accuracy by capturing essential pedestrian dimensions while significantly reducing modeling complexity compared to detailed geometric models.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent creates a simplified copy of the pedestrian represented as a bounding cylinder rather than using the actual complex geometry. This copying approach preserves the essential spatial information needed for collision avoidance while eliminating the computational complexity of working with detailed 3D models.

Inventive Principle:
Principle #26Copying

3Measurement precision

If traditional detection methods are used, then processing speed is faster, but detection precision in three-dimensional space is insufficient

Engineering Contradiction:
Improvedetection precisionVSAvoidprocessing speed
Core Design Contradiction:
Measurement precisionVSSpeed

Solution Approach 1:

The patent changes from detecting complex 3D geometries to detecting a simplified parameter set (height, radius, position) within a bounding cylinder. This parameterization maintains detection precision for 3D spatial information while improving processing speed because the computational burden is significantly reduced compared to detailed 3D reconstruction methods.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12260654B2Pedestrian detection via a boundary cylinder model
Publication Date: 2025.03.25 VOLVO CAR CORP
  • US12260654B2 patent drawing
  • US12260654B2 patent drawing
  • US12260654B2 patent drawing

AI summary

Systems, devices, computer-implemented methods, and/or computer program products that can facilitate pedestrian detection via a boundary cylinder model are addressed. In one example, a system can comprise a processor that executes computer executable components stored in memory. The computer-executable components can comprise a bounding cylinder model component that determines numerical values for height and radius parameters of a three-dimensional bounding cylinder model representing a pedestrian, and that generates the three-dimensional bounding cylinder model representing the pedestrian based on the numerical values.