Driving Support Visual Attraction Stimulation Image Generation

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Solution Overview

Problem

Existing driving support devices either lead to driver overconfidence due to explicit sight line guidance or loss of consciousness due to subtle visual stimulation, and often fail to provide appropriate visual stimulation intensity, potentially lowering the driver's awareness of the target object.

Innovation Solution

A driving support device that uses a visual attraction stimulation image generation unit to create images appearing to move from a distance towards the target object, with a correction unit adjusting display parameters based on the driver's body reaction data to maintain appropriate visual stimulation intensity and awareness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If an enhanced image is displayed in superimposition on the target object to guide the driver's line of sight, then the driver strongly recognizes the sight line guidance, but the driver may become overconfident in their own attentiveness and lose consciousness trying to perceive the target object with their own attentiveness

Engineering Contradiction:
Improvesight line guidance effectivenessVSAvoiddriver awareness
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent applies local quality by creating a visual attraction image with enhanced visual properties (brightness, contrast, size) only in specific regions where attention is needed, rather than enhancing the entire scene. This localized enhancement guides the driver's attention to the target object without overwhelming the driver's overall situational awareness, thus preventing overconfidence while maintaining effective guidance.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements dynamics by continuously adjusting the display parameters of the visual attraction image based on the driver's current state and the situation. The enhancement level, position, and characteristics of the visual attraction image are dynamically modified to maintain optimal guidance effectiveness while preventing driver overconfidence and loss of consciousness.

Inventive Principle:
Principle #15Dynamics

2Reliability

If a luminance image hardly distinguishable from the visual attraction target object is used for sight line guidance, then the driver may not lose consciousness, but the driver may erroneously assume they perceived the target object with their own attentiveness alone and become overconfident

Engineering Contradiction:
Improvedriver awarenessVSAvoidsight line guidance effectiveness
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent applies color changes by modifying the visual attributes of the attraction image to create a noticeable but not overwhelming visual stimulus. The image uses enhanced color, brightness, or contrast characteristics that make it distinguishable from the background and target object, ensuring the driver perceives the guidance stimulus without losing awareness or becoming overconfident.

Inventive Principle:
Principle #32Color changes

3Measurement precision

If visual stimulation intensity is too high, then the driver's line of sight is effectively guided to the target object, but the driver's consciousness and awareness of the target object may decrease

Engineering Contradiction:
Improvesight line guidance effectivenessVSAvoiddriver consciousness
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent implements dynamics by continuously adjusting the display parameters of the visual attraction image based on the driver's current state and the situation. The enhancement level, position, and characteristics of the visual attraction image are dynamically modified to maintain optimal guidance effectiveness while preventing driver overconfidence and loss of consciousness.

Inventive Principle:
Principle #15Dynamics

4Reliability

If visual stimulation intensity is too low, then the driver's consciousness is maintained, but the visual stimulation is incapable of providing appropriate intensity to guide the driver's line of sight effectively

Engineering Contradiction:
Improvedriver consciousnessVSAvoidsight line guidance effectiveness
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent applies local quality by creating a visual attraction image with enhanced visual properties (brightness, contrast, size) only in specific regions where attention is needed, rather than enhancing the entire scene. This localized enhancement guides the driver's attention to the target object without overwhelming the driver's overall situational awareness, thus preventing overconfidence while maintaining effective guidance.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11386585B2Driving support device, driving support method, and storage medium storing driving support program
Publication Date: 2022.07.12 MITSUBISHI ELECTRIC CORP
  • US11386585B2 patent drawing
  • US11386585B2 patent drawing
  • US11386585B2 patent drawing

AI summary

A driving support device includes processing circuitry to judge a target object that is a real object existing in the vicinity of the vehicle and should be paid attention to by the driver; to generate a visual attraction stimulation image that appears to move from a position farther than the target object towards a position where the target object exists; to cause a display device to display the visual attraction stimulation image; and to receive body information from a body information detector acquiring the body information on the driver, to calculate a value indicating body reaction to visual stimulation sensed by the driver, and to correct a display parameter that determines display condition of the visual attraction stimulation image based on the value indicating the body reaction so as to change a degree of the visual stimulation given to the driver by the visual attraction stimulation image.