Parking Display Control Apparatus for Accurate Position Recognition
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Solution Overview
Problem
Current parking assistance technologies struggle to help drivers accurately position their vehicles within marked-off parking spaces, as existing guidelines do not effectively convey the vehicle's position in the width direction or the distance to objects like parking frames or curbs, leading to confusion and difficulty in recognizing the correct positioning.
Innovation Solution
A display control apparatus that acquires image data from rear or surrounding cameras, generates display images with superimposed predicted course lines and assisting lines, and adjusts their clarity based on the vehicle's position relative to the parking space boundaries, and optionally includes distance indicating lines to help drivers recognize their distance to objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only basic guidelines corresponding to vehicle width are displayed, then the display remains simple and uncluttered, but the driver cannot accurately recognize the vehicle position in the width direction of the parking space
Solution Approach 1:
The display guidance is segmented into multiple functional components: predicted trajectory lines showing vehicle movement path, assisting lines indicating width direction position, and marked-off space boundaries defining parking area limits. Each segment serves a specific recognition purpose, allowing drivers to accurately determine vehicle position without overwhelming display complexity.
Solution Approach 2:
Different line types and styles are applied to different spatial regions and information levels. Predicted trajectory lines use one visual style, assisting lines use another, and boundaries use a third. This local differentiation helps drivers quickly distinguish between various positional references and improves recognition accuracy without requiring uniform display treatment.
2Measurement precision
If multiple assisting lines are displayed to improve position recognition, then position accuracy improves, but the displayed items become complicated and difficult to recognize quickly
Solution Approach 1:
The system extracts and displays only the most critical positional information elements: the predicted trajectory lines showing where the vehicle will move, assisting lines indicating width position relative to parking space, and boundary lines defining the parking area. Non-essential display elements are omitted, allowing accurate position recognition without visual clutter that would hinder quick understanding.
3Measurement precision
If numerical values or scale divisions are added to indicate distance, then distance recognition accuracy improves, but the display becomes complicated and slows down recognition speed
Solution Approach 1:
Instead of adding numerical values or scale markings that would clutter the display, the system conveys distance information through the spatial arrangement and length of graphical elements. The predicted trajectory lines and assisting lines are positioned and sized to visually represent distance relationships, allowing drivers to perceive distance accurately through spatial perception rather than reading numerical data, thus maintaining quick recognition.
Data Source
AI summary
An image data acquisition unit acquires image data from a rear camera. A display image generation unit generates display image data obtained by superimposing a pair of predicted course lines and a plurality of assisting lines on the acquired image data. An extraction unit extracts a marked-off space boundary in a width direction of a marked-off parking space from the image data. A positional relation determination unit determines a positional relation between the extracted marked-off space boundary and the assisting line on the display image data. The display image generation unit changes a displaying format of an assisting line located on an outer side of the marked-off space boundary extracted by the extraction unit from a displaying format of an assisting line located on an inner side of the marked-off space boundary. A display control unit displays an image based on the display image data on a display unit.