Vehicle Display Control Using Optical Flow Additive Lines
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Solution Overview
Problem
Current display control systems for vehicles fail to adequately shorten visually-recognition and operational times for drivers, leading to potential distractions from the road due to prolonged eye movements between the display and the driving direction.
Innovation Solution
A display control device that uses an optical-flow presumption component to set an additive-display line based on the optical flow from a front camera, combined with a driver-state presumption component to adjust the display control, ensuring the driver's attention is focused on the display by aligning it with the optical flow and considering human recognition characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the display position is moved closer to the driver to shorten visually-recognition time, then the visually-recognition time is shortened, but the operational time becomes long due to eye stabilization issues
Solution Approach 1:
The patent uses optical flow visualization to create a dynamic visual guide that changes with vehicle motion. The display presents information in alignment with the perceived optical flow direction, making the display content more naturally noticeable to the driver without requiring prolonged eye movement or stabilization
Solution Approach 2:
The patent introduces a new dimensional approach by considering the optical flow direction as an additional spatial dimension for display orientation. Instead of only adjusting display position distance, the system orients the display content along the optical flow vector, creating a multi-dimensional solution that addresses both recognition speed and operational ease
2Loss of information
If the driver's eyes move to the display position, then the display can be seen, but the driver's eyes remain away from the traveling way for an improperly-long period
Solution Approach 1:
The system prepares the display content in advance by orienting it along the optical flow direction before the driver needs to view it. This preliminary alignment ensures that when the driver glances at the display, the information is immediately noticeable and processable without requiring extended eye movement or cognitive adjustment
Solution Approach 2:
The patent dynamically adjusts display parameters based on optical flow characteristics. By changing the display orientation parameter to match the optical flow direction, the system reduces the cognitive and visual load on the driver, enabling quicker information processing and faster return of attention to the road
Data Source
AI summary
A display control device for a vehicle, which is applied to a vehicle provided with an outside camera to image scenery in front of the vehicle and a display portion visible and operable for a driver, comprises an optical-flow presumption portion which presumes an optical flow based on the front scenery imaged by the outside camera, an additive-display-line setting portion to set an additive-display line to be applied to the display portion according to the optical flow presumed by the optical-flow presumption portion, and a display control portion to conduct a display control for the display portion based on the additive-display line set by the additive-display-line setting portion.