Camera Position Calibration Using Vehicle Visual Markers

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Solution Overview

Problem

Existing camera systems require manual training and re-training when moved to a new location, which is time-consuming and inefficient.

Innovation Solution

A monitoring system that automatically determines the position of a camera based on known details of the area to be monitored and the position of assets within the field of view, using visual indicators like QR codes or barcodes on moving vehicles to calibrate the camera's position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual training is used to train the camera on what objects to monitor, then the camera can be trained to monitor specific areas, but the training process takes multiple days to complete

Engineering Contradiction:
Improvecamera training accuracyVSAvoidtraining time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical training operations with an automated computer vision system. The system uses image processing algorithms to automatically identify routes, vehicles, and areas of interest, eliminating the need for manual operator training that takes multiple days. The automated system processes visual data from the camera to generate monitoring parameters without human intervention.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If the camera is moved to a new location, then the camera can monitor different areas, but the camera requires re-training

Engineering Contradiction:
Improvecamera location flexibilityVSAvoidre-training time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent implements a self-service calibration system where the camera automatically determines its own position and training parameters using visual indicators in the environment. When moved to a new location, the camera captures images, detects visual indicators (QR codes, barcodes, or natural features), and autonomously calculates its position and generates appropriate monitoring parameters without requiring operator re-training.

Inventive Principle:
Principle #25Self-service

3Extent of automation

If visual indicators like QR codes or barcodes are used on moving vehicles, then the camera position can be automatically calibrated, but the system complexity increases

Engineering Contradiction:
Improvecamera calibration automationVSAvoidsystem complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The patent introduces visual indicators (QR codes, barcodes, or natural visual features) as intermediary elements that facilitate automatic camera calibration. These indicators serve as mediators between the camera system and the environment, providing recognizable reference points that the computer vision system can detect and use to calculate camera position and orientation without complex direct measurement systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12530794B2Monitoring system and method
Publication Date: 2026.01.20 TRANSPORTATION SYSTEMS HOLDINGS INC
  • US12530794B2 patent drawing
  • US12530794B2 patent drawing
  • US12530794B2 patent drawing

AI summary

A method of operating a monitoring system may include receiving details of an area to be monitored, and receiving one of a) position details of an asset moving within a field of view of the area to be monitored, or b) position details of a camera configured to monitor the area. The method may include determining one of c) a position of the camera responsive to receiving the position details of the asset moving within the field of view of the area; or d) a position of the asset moving within the field of view responsive to receiving the position details of the camera.