Image-Based Passenger Risk Ratio Alerts for Crime Prevention
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Solution Overview
Problem
Existing technologies do not effectively prevent criminal acts within confined spaces like buses, trains, or taxis, as they focus on post-incident prevention rather than proactive risk assessment.
Innovation Solution
A processing apparatus that analyzes capture images to determine the ratio of individuals at risk of criminal victimization to the total number of individuals, triggering alerts when the ratio meets predefined criteria, thereby enabling early intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If image analysis and ratio computation are implemented to identify potential criminal risks, then crime prevention capability is improved, but device complexity increases
Solution Approach 1:
The system performs preliminary analysis by computing the ratio of persons satisfying specific attributes to total persons before a crime occurs. This advance assessment enables early warning and prevention measures to be taken, resolving the contradiction by implementing preventive action before the harmful event happens.
Solution Approach 2:
The processing apparatus acts as an intermediary between the monitoring environment and the crime prevention response system. It analyzes images, computes ratios, and generates warnings without directly intervening in the crime itself, thus improving prevention capability while maintaining manageable system complexity through a dedicated intermediate processing layer.
2Measurement precision
If real-time image analysis is performed to compute person ratios, then detection precision is improved, but use of energy increases
Solution Approach 1:
The system performs partial analysis by focusing only on computing the ratio of persons satisfying specific attributes to total persons, rather than analyzing every aspect of the image data. This selective computation approach maintains adequate detection precision while reducing energy consumption compared to comprehensive real-time analysis.
3Reliability
If alert information is generated based on ratio conditions, then crime prevention effectiveness is improved, but loss of time in processing increases
Solution Approach 1:
The system pre-establishes alert conditions based on ratio thresholds before processing begins. When the computed ratio satisfies these predetermined conditions, alerts are generated immediately without requiring complex real-time decision-making, thus improving prevention effectiveness while minimizing processing time delays.
Data Source
AI summary
The present invention provides a processing apparatus (10) including an acquisition unit (11) that acquires a capture image capturing a movement means, an image analysis unit (12) that computes, based on the capture image, the number of persons each having an attribute satisfying a first criterion among persons inside the movement means, and the number of persons targeted for comparison, a computation unit (13) that computes a ratio of the number of persons satisfying the first criterion to the number of persons targeted for comparison, and an output unit (14) that outputs alert information when the ratio satisfies an alert condition.