Head-Up Display Highlight Segmentation for Object Discrimination
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Solution Overview
Problem
Existing display control systems for virtual image display apparatuses, such as head-up displays, face challenges in accurately distinguishing notification objects due to positional errors caused by detection inaccuracies and manufacturing errors, leading to potential misrecognition by users.
Innovation Solution
A display control apparatus that includes a target information acquisition section and a display execution section, which acquires target information like position and size of notification objects and displays a first and second highlight image. The second highlight image is enlarged by a predetermined magnification percentage to specify the area where the notification object exists, allowing easy identification even when multiple objects are present.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sufficiently large area is represented by a highlight image to ensure the notification object fits, then the notification object can be reliably contained, but several objects may be included making it difficult to discriminate the authentic notification object
Solution Approach 1:
The patent divides the single highlight image into two distinct highlight images: a first highlight image representing the actual size of the notification object, and a second highlight image representing an enlarged area that accounts for positional errors. This segmentation allows the system to simultaneously ensure containment reliability and maintain object discrimination capability by visually distinguishing between the two functional areas.
Solution Approach 2:
The patent applies different visual properties to different parts of the display system. The first highlight image uses one set of display properties (size matching the notification object), while the second highlight image uses different display properties (enlarged size for error compensation). This local quality differentiation allows each highlight image to serve its specific function while working together to resolve the contradiction.
2Reliability
If the highlight image size is increased to account for detection and manufacturing errors, then the notification object is reliably contained, but the precision of object identification decreases
Solution Approach 1:
The patent segments the position indication function into two distinct visual elements: the first highlight image that precisely marks the detected notification object position, and the second highlight image that shows the expanded search area for error tolerance. This segmentation resolves the contradiction by providing both precision and reliability simultaneously.
Solution Approach 2:
The second highlight image acts as an intermediary element that mediates between the detected position and the actual notification object location. It provides a visual buffer zone that accounts for errors without compromising the precision of the primary position indication provided by the first highlight image.
Data Source
AI summary
A display control apparatus performs overlapping display of a highlight image against a notification object that is visually recognized through a picture projection plane of a virtual image display apparatus used by a driver of a vehicle such that the highlight image represents the notification object. A target information acquisition section acquires target information including at least a position and a size of the notification object. A display execution section displays a first highlight image and a second highlight image in a display form capable of identifying each of the first highlight image and the second highlight image based on target information acquired by the target information acquisition section. The first highlight image corresponds to a size of the notification object, while the second highlight image results from enlarging the first highlight image at a predetermined magnification percentage.