Crosswalk Violation Detection With Angle-Corrected Pedestrian Tracking

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Solution Overview

Problem

Existing traffic monitoring systems inaccurately determine the moving direction of objects at crosswalks due to varying installation angles and misidentification of wandering pedestrians, leading to incorrect detection of uncourteous driving behaviors.

Innovation Solution

Implement a method to correct the angle of moving objects using lane lines and displacement analysis, identify a target object with precedence, and mark vehicles passing through the region as a violation if they are not courteous to the target object, incorporating image processing and recognition techniques to confirm the violation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual monitoring of traffic violations is used, then false accusations can be avoided through human judgment, but the system requires significant human resources and time for review

Engineering Contradiction:
Improveaccuracy of violation detectionVSAvoidhuman resources required
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system enables automated violation detection and notification through the image analysis server that automatically processes images, identifies violations, determines responsible parties, and sends notifications without requiring manual human intervention for each violation case

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical human review process with an automated image analysis system using machine learning models that analyze images, detect violations, and determine responsible parties algorithmically, substituting human judgment with automated computational analysis

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

2Productivity

If automated image analysis is implemented, then processing speed and coverage are improved, but false accusations may increase due to lack of human judgment

Engineering Contradiction:
Improveviolation detection speedVSAvoidaccuracy of violation detection
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system implements feedback mechanisms where notification images are sent to both the responsible party and the client, allowing for verification and correction of automated decisions, and enabling continuous improvement of the image analysis models based on real-world outcomes

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The image analysis server performs multiple functions including detecting violations, determining responsible parties, generating notification images, and providing verification mechanisms, creating a comprehensive automated system that handles the entire violation detection workflow

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If multiple images are captured and analyzed, then detection accuracy is improved, but processing time and computational resources increase

Engineering Contradiction:
Improveviolation detection accuracyVSAvoidimage processing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system captures multiple images simultaneously or in rapid sequence during the violation event, performing the image capture action in advance before analysis is needed, allowing the analysis phase to work with pre-captured data rather than requiring sequential capture during analysis

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The image analysis process is divided into separate processing stages where different machine learning models handle different aspects of analysis (violation detection, responsible party identification, etc.), allowing parallel processing of multiple images through segmented analytical tasks

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3983931B1Systems and methods for traffic violation detection
Publication Date: 2026.05.20 ZHEJIANG DAHUA TECH CO LTD
  • EP3983931B1 patent drawingFigure 1
  • EP3983931B1 patent drawingFigure 2
  • EP3983931B1 patent drawingFigure 3

AI summary

The present disclosure provides a system and method for traffic violation detection. The system may determine a target object which should be given precedence with respect to a vehicle from one or more moving objects by performing an angle correction on the one or more moving objects, wherein the one or more moving objects are objects moving in a predetermined region. When it is determined that a moving direction of the target object is a moving direction towards middle of a road and a target vehicle passing through the predetermined region is not courteous to the target object, the system may mark a state of the target vehicle as a violation state.