Video-Based Parking Angle Violation Detection

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Solution Overview

Problem

Current methods for detecting parking angle violations are inefficient and costly, as they rely on manual labor or high-maintenance sensor systems, with video-based technologies not effectively monitoring vehicle angles relative to parking space curbs and boundaries.

Innovation Solution

A video-based system that uses image capture devices to monitor parking areas, processing video data to determine the angle of parked vehicles relative to the curb and enforcing parking regulations by computing the angle between the vehicle and the nominal orientation of the parking area, with modules for vehicle detection, angle calculation, and violation determination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual labor is used for detecting parking angle violations, then detection accuracy can be maintained, but labor costs and time consumption increase significantly

Engineering Contradiction:

Improvedetection accuracyVSAvoidtime consumption

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical inspection with an automated video-based detection system that uses image capture devices and computer processing to automatically detect and measure parking angle violations, eliminating the need for manual labor while maintaining detection accuracy

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system creates a digital copy of the parking area through video imaging, allowing automated analysis of vehicle angles and positions without requiring physical manual measurement, thus reducing time consumption while preserving detection precision

Inventive Principle:

Principle #26Copying

2Productivity

If sensor-based methods are used to automate parking detection, then labor costs are reduced, but installation and maintenance costs increase

Engineering Contradiction:

Improveautomation efficiencyVSAvoidinstallation and maintenance cost

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces complex sensor-based mechanical systems with a video-based optical system that uses standard image capture devices and software processing, simplifying the overall system while maintaining automation capabilities and reducing installation and maintenance requirements

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The video-based system can detect multiple types of parking violations (angle violations, boundary violations, occupancy status) using a single platform, replacing the need for specialized sensors for each detection task and thereby reducing overall system complexity and cost

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Device complexity

If video-based technology is used for parking monitoring, then installation cost is reduced, but angle measurement capability is insufficient

Engineering Contradiction:

Improveinstallation costVSAvoidangle measurement capability

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent transforms the 2D video image data into accurate 3D angle measurements by establishing geometric relationships between the camera position, the detected vehicle features, and the curb reference line, enabling precise angle calculation from standard video footage

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The system introduces computational geometry and image processing algorithms as intermediaries between the raw video data and the final angle measurement, extracting geometric features from video frames and calculating vehicle angles relative to the curb through mathematical transformations

Inventive Principle:

Principle #24Intermediary (Mediator)

4Reliability

If traditional manual enforcement is used, then false violations are minimized, but revenue loss from undetected violations increases

Engineering Contradiction:

Improvefalse violation rateVSAvoidviolation detection coverage

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system incorporates feedback mechanisms where detected violations are reviewed and validated through multiple processing stages, allowing the system to learn from and correct potential false detections while maintaining high detection coverage through continuous monitoring

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary detection and filtering of potential violations before final enforcement action, using automated video analysis to identify and flag violations for review, thereby reducing the burden on manual enforcement while minimizing false positives through pre-screening

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8737690B2Video-based method for parking angle violation detection

Publication Date: 2014.05.27 MODAXO ACQUISITION USA INC N K A MODAXO TRAFFIC MANAGEMENT USA INC

AI summary

A method and a system for determining a parking angle violation includes receiving video data from a sequence of frames taken from an image capture device monitoring a parking area. The method further includes determining a first line in a current frame where the line represents a nominal orientation of the parking area. The method includes detecting a presence of a vehicle in the parking area. The method includes determining a second line in the frame where the line represents the orientation of the detected vehicle. The method further includes computing an angle between the first and second lines. The method includes determining whether the detected vehicle is violating a parking regulation based on the computed angle.