Adaptive Visual Representation for Driver Alerting
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Solution Overview
Problem
Existing methods for alerting vehicle operators to objects in their path are not effective in providing quick and timely alerts, particularly in the peripheral field of view.
Innovation Solution
A method that captures the vehicle operator's viewing direction to select representations from two types, adapting to whether the representation site is in the central or peripheral field of view, using color contrasts and time-variable representations to enhance visibility and movement detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single type of representation is used for all field of view regions, then the device complexity is reduced, but the effectiveness of alerting the vehicle operator is deteriorated
Solution Approach 1:
The patent applies local quality by using different representation types for different regions of the field of view. Specifically, color-based representations are used in the central field of view where color perception is acute, while movement-based representations are used in the peripheral field of view where motion detection is more sensitive. This regional differentiation optimizes alert effectiveness for each area without requiring a completely complex system redesign.
Solution Approach 2:
The patent implements dynamics by dynamically selecting the representation type based on the detected viewing direction of the vehicle operator. The system continuously monitors where the operator is looking and adapts the representation type (color vs. movement) according to whether the target object falls in the central or peripheral field of view, making the system responsive and adaptive rather than static.
2Loss of information
If color-based representations are used in the peripheral field of view, then the loss of information is reduced, but the effectiveness of detection is deteriorated due to physiological limitations
Solution Approach 1:
The patent recognizes that different regions of the visual field have different physiological characteristics. In the peripheral field of view, the human eye is less sensitive to color variations but more sensitive to movement. Therefore, the system uses movement-based representations (such as changing intensity or wave patterns) in the peripheral region instead of color-based representations, optimizing detection effectiveness for that specific area.
Solution Approach 2:
The patent changes the representation parameters based on the field of view region. For peripheral representations, it uses time-variable parameters such as intensity variations and wave patterns instead of relying on color parameters. This parameter adaptation ensures that the representation mode matches the physiological detection capabilities of each visual region.
3Difficulty of detecting and measuring
If time-variable representations are used in the central field of view, then the detection of objects is improved, but the ease of operation is deteriorated due to potential distraction
Solution Approach 1:
The patent applies different representation strategies to different field of view regions based on their functional characteristics. In the central field of view, where the operator directly focuses attention, it uses stable color-based representations that provide clear, distraction-free information. Time-variable representations are reserved for the peripheral field of view where they can attract attention without causing distraction to the central visual task.
Data Source
AI summary
The physiological characteristics of the eye are particularly well taken into account in a motor vehicle by selecting a representation at a representation site from at least two types of representations depending on whether the respective representation site is located in a central field of view of the vehicle operator or is located in a peripheral field of view of the vehicle operator. Preferably, intensive colors and strong color contrasts are selected in the central field of view of the vehicle operator, whereas representations that change over time are selected in the peripheral field of view.