Windshield Light Feedback for In-Car Pointing Gesture Recognition
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Solution Overview
Problem
Conventional technology fails to provide feedback to a vehicle occupant regarding the recognition of a finger pointing gesture without obstructing their view of the surroundings.
Innovation Solution
A data processing device with an occupant state recognition unit, peripheral conditions acquisition unit, target recognition unit, and a light emission control unit that controls an elongated light emitting unit below the windshield to provide feedback through luminescence modes based on recognition results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If feedback is provided to the occupant about finger pointing gesture recognition, then the interaction is improved, but the driver's visual confirmation of surroundings may be impeded
Solution Approach 1:
The patent transitions feedback from a 2D display (screen) to a 3D spatial light field projected onto the windshield. By projecting light patterns that correspond to the recognized gesture and target object in three-dimensional space, the system provides intuitive feedback without requiring the driver to shift focus to a separate display plane, thus maintaining visual awareness of the surroundings while improving interaction
2Illumination intensity
If a light emitting unit is installed above or below the windshield to provide feedback, then feedback visibility is improved, but the device complexity increases
Solution Approach 1:
The patent makes the windshield serve multiple functions: it acts as both the structural glazing component and the projection surface for feedback display. The existing windshield structure is utilized as the medium for light projection, eliminating the need for separate display screens or additional complex feedback hardware, thus improving feedback visibility while controlling device complexity
Solution Approach 2:
The patent introduces a light projecting unit that acts as an intermediary between the gesture recognition system and the driver. This unit converts recognition results into visual light patterns projected onto the windshield, providing intuitive feedback without requiring direct integration of complex display technologies into the vehicle interior
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Provides suitable feedback on finger pointing gestures without obstructing the occupant's view, allowing recognition progress to be easily confirmed through changes in luminescence mode.
Implementation Method 1
a light emission control unit, and configured to control a luminescence mode of a portion of the light emitting unit
Data Source
AI summary
A data processing device for performing suitable feedback with regard to a pointing gesture of a vehicle occupant is provided. The occupant state recognition unit recognizes motion of an occupant of the vehicle pointing to outside the vehicle. The peripheral conditions acquisition unit acquires the peripheral circumstances around the vehicle. The target recognition unit recognizes a target pointed at by the occupant based on recognition results obtained by the occupant state recognition unit and recognition results obtained by the peripheral conditions acquisition unit. The light emitting unit has a long shape and is installed above or below a windshield of the vehicle over a vehicle body width direction. The light emission control unit controls, in two stages, a luminescence mode for a portion of the light emitting unit corresponding to a direction pointed at by the occupant and/or a direction in which the target is located.