Parking Assist Overhead Image Steering Frame Display
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Solution Overview
Problem
Existing parking assistance systems overwhelm drivers with multiple lines on overhead images, making it difficult to discern the correct path for steering operations during parking.
Innovation Solution
A parking assistance system using multiple on-board camera devices and an image processing controller generates an overhead image with distinct markings for each parking step, clearly indicating the target stop position and steering associations, and dynamically changes display marks based on vehicle movement to simplify the parking path visualization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all parking trajectory lines (reverse movement start position, target parking position, halfway parking position, steering association lines, and ideal path indicating lines) are displayed on the overhead image, then the driver can see the entire parking path, but the driver gets confused because it is difficult to grasp which lines to follow
Solution Approach 1:
The parking trajectory is divided into multiple segments (reverse movement start position, halfway parking position, target parking position) with distinct visual markers. Each segment is represented by different graphical elements (frames, lines, arrows) that are visually differentiated, allowing the driver to process information in manageable chunks rather than as a single complex overlay.
Solution Approach 2:
Different portions of the parking path are highlighted with different visual properties. The reverse movement start position is marked with a specific frame, the halfway position with another frame type, and the target position with a distinct marker. Steering association lines and ideal path lines use different line styles or colors, creating local visual differentiation that guides driver attention to relevant portions of the trajectory.
2Loss of information
If multiple lines and positions are displayed on the overhead image, then complete parking trajectory information is provided, but the display becomes complex and hard to view
Solution Approach 1:
The display information is segmented into distinct functional elements: position markers (frames at key locations), trajectory lines (steering association lines and ideal path lines), and directional indicators (arrows). Each segment serves a specific informational purpose and is visually differentiated, reducing the perceived complexity while maintaining information completeness.
Solution Approach 2:
Different line types and position markers are displayed using different colors or line styles. The ideal path indicating lines may use a distinct color from the steering association lines, and key positions are marked with framed indicators that stand out from the trajectory lines. This visual differentiation helps the driver quickly distinguish between various elements without requiring complex cognitive processing.
Data Source
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AI summary
A parking assistance system for a vehicle includes multiple on-board cameras (11, 12, 13, 14) each configured to capture an image of a surrounding area of the vehicle, overhead image generating means (21) for joining the captured multiple images and generating an overhead image viewed from above the vehicle, and display means (22) for displaying the generated overhead image and a steering wheel turning frame corresponding to a steering wheel turning position at which steering wheel turning is performed on the way of reverse movement of the vehicle to a predetermined target parking position.