Vehicle Display Control for Cognitive Load Reduction
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Solution Overview
Problem
Existing display control technologies for vehicles reduce image information when vehicle speed exceeds a threshold, leading to decreased convenience and increased cognitive load for drivers, as they often hide images entirely, which is not desirable and results in reduced understandability and information loss.
Innovation Solution
A display control apparatus that determines whether to reduce the amount of image information based on vehicle data, displaying a summarized second image in place of a detailed first image when necessary, using a classifier like a pre-trained neural network to categorize and abstract image content, thereby reducing cognitive load without requiring high-performance processors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image is hidden when vehicle speed exceeds a threshold, then safety is improved, but convenience and information availability deteriorate
Solution Approach 1:
The patent applies local quality by differentiating the display strategy based on vehicle speed conditions. When the vehicle is stationary or moving slowly, the full first image is displayed. When the vehicle moves at high speed, the system transitions to displaying a summarized second image. This localized adaptation of display quality to specific operational conditions resolves the contradiction between safety (reducing distraction at high speed) and convenience (maintaining information availability when needed).
Solution Approach 2:
The patent implements dynamics by making the display content adaptive to vehicle speed. The system dynamically switches between displaying the detailed first image and the summarized second image based on real-time vehicle speed detection. This dynamic adjustment allows the display to optimize between safety and convenience depending on the current driving condition, rather than using a static hide-all-approach.
2Loss of information
If the detailed first image is displayed, then information availability is improved, but cognitive load on the driver increases
Solution Approach 1:
The patent applies the extraction principle by creating a second image that extracts and displays only the essential information from the detailed first image. The summarization process removes unnecessary details while retaining key information, thereby reducing cognitive load on the driver while maintaining adequate information availability. This selective extraction resolves the contradiction between providing comprehensive information and avoiding excessive cognitive burden.
3Object-affected harmful factors
If image information is reduced when vehicle speed is high, then cognitive load is reduced, but information availability and convenience deteriorate
Solution Approach 1:
The patent uses dynamics to adaptively adjust image information based on vehicle speed. The system transitions from displaying the detailed first image at low speeds to displaying the summarized second image at high speeds. This dynamic adjustment ensures that cognitive load is reduced only when necessary (at high speeds), while maintaining full information availability and convenience when the vehicle is stationary or moving slowly.
4Measurement precision
If a classifier is used to determine image reduction, then processing accuracy is improved, but device complexity increases
Solution Approach 1:
The patent introduces a classifier as an intermediary component that objectively determines whether image reduction is necessary based on vehicle speed and image characteristics. This intermediary provides accurate, consistent decision-making without requiring complex human judgment logic. The classifier acts as a mediator between the image processing system and the display system, improving determination accuracy while adding only moderate complexity through a dedicated classification module.
Data Source
AI summary
A display control apparatus according to an embodiment of the present disclosure is a display control apparatus that displays an image on a display unit equipped on a vehicle, the display control apparatus including an image display unit that determines whether or not an amount of information of a first image to be displayed on the display unit equipped on the vehicle needs to be reduced based on vehicle information obtained from the vehicle, displays the first image on the display unit when the amount of the information of the first image does not need to be reduced, and displays a second image an amount of information of which is smaller than the amount of the information of the first image in place of the first image on the display unit when the amount of the information of the first image needs to be reduced.