Multi-Vehicle Gaze Point Concentration for External Event Detection

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Solution Overview

Problem

Existing systems fail to accurately detect and estimate events occurring outside of vehicles, as they only consider the line of sight of a single vehicle's occupant, limiting the ability to provide effective assistance for multiple vehicles.

Innovation Solution

A travel environment analysis apparatus comprising a gaze point concentration area detector, a gaze point concentration area event estimation unit, and an information output unit that detects and estimates events by analyzing the collective line of sight of multiple vehicle occupants, identifying new gaze point concentration areas and outputting relevant information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If only the line of sight of a single vehicle's occupant is detected, then the system complexity is reduced and direct assist for the specific occupant is improved, but the ability to accurately detect and estimate events occurring outside of vehicles deteriorates

Engineering Contradiction:
Improveevent detection accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines line-of-sight data from multiple vehicles' occupants into a unified gaze point concentration area detection framework. By merging the line-of-sight information from different vehicles and detecting concentration areas where multiple occupants are gazing at the same location, the system achieves more accurate event detection without requiring complex individual vehicle analysis for each occupant separately.

Inventive Principle:
Principle #5Merging (Combining)

2Measurement precision

If line of sight data from multiple vehicles is analyzed to detect events outside vehicles, then event detection accuracy is improved, but the computational load and processing complexity increase

Engineering Contradiction:
Improveevent estimation accuracyVSAvoidprocessing efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent segments the detection process into two main stages: first, detecting gaze point concentration areas by analyzing line-of-sight data from multiple vehicles; second, estimating events within those concentration areas. This segmentation allows the system to process complex multi-vehicle data efficiently by breaking down the analysis into manageable steps, improving both accuracy and processing efficiency.

Inventive Principle:
Principle #1Segmentation

3Reliability

If only direct assist for individual occupants is provided, then the responsiveness to individual needs is improved, but the overall safety and awareness of events in the travel environment deteriorates

Engineering Contradiction:
Improvesafety reliabilityVSAvoidsystem operation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent creates a universal detection framework that serves multiple functions: it detects events outside vehicles, estimates event characteristics, and provides assistance to multiple vehicles and occupants simultaneously. The gaze point concentration area detection serves as a universal mechanism that can identify various types of events (accidents, road conditions, obstacles) and apply appropriate assistance across different scenarios, improving both reliability and operational simplicity.

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

Data Source

PatentUS12100228B2Travel environment analysis apparatus, travel environment analysis system, and travel environment analysis method
Publication Date: 2024.09.24 MITSUBISHI ELECTRIC CORP
  • US12100228B2 patent drawing
  • US12100228B2 patent drawing
  • US12100228B2 patent drawing

AI summary

An object is to provide a travel environment analysis apparatus that accurately estimates an event occurring outside of a vehicle. A travel environment analysis apparatus includes a gaze point concentration area detector, a gaze point concentration area event estimation unit, and an information output unit. The gaze point concentration area detector sequentially detects a gaze point concentration area that is an area outside of a plurality of vehicles and gazed by occupants of the plurality of vehicles, based on line-of-sight information related to lines of sight of the occupants. The gaze point concentration area event estimation unit estimates, when a new gaze point concentration area which is a gaze point concentration area newly coming up is detected, an event occurring in the new gaze point concentration area. The information output unit outputs information of the new gaze point concentration area and information of the event.