Navigation Distant View Rendering via Bearing Segmentation
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Solution Overview
Problem
Conventional car navigation systems lack efficient mechanisms for depicting realistic background images beyond the horizon, leading to awkward representations when areas without mountains are displayed, and require burdensome database management for accurate distant views.
Innovation Solution
An image processing apparatus that divides bearings into predetermined regions to manage and depict distant view patterns, using a dual structure of outer and inner circle patterns, where the outer circle pattern includes images of mountains and the inner circle pattern includes cityscapes, allowing for dynamic switching based on location, thereby reducing processing complexity and improving realism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed distant view image of mountains is prepared beforehand and depicted at the portion beyond the horizon, then the processing amount is reduced, but mountains are always depicted even when an area that is not surrounded by mountains is displayed such as an area along the sea, creating awkwardness in the displayed image
Solution Approach 1:
The patent divides the bearing range into multiple bearing regions (first bearing region and second bearing region) and assigns different distant view patterns to each region. The managing unit stores identification information of distant view patterns for each bearing region at each location point. This segmentation allows the system to select appropriate distant view patterns (mountains for outer regions, cityscapes for inner regions) based on the current bearing, achieving accurate regional representation without requiring complete location-specific databases while maintaining efficient processing.
2Ease of operation
If a database of distant view images for every location were prepared and arranged to be reproduced accordingly, then accurate distant views would be achieved, but processing and operations would be burdensome
Solution Approach 1:
The patent applies local quality by assigning different distant view patterns to different bearing regions. The outer circle distant view pattern includes mountain images for outer bearing regions where the vehicle is in a wide region, while the inner circle distant view pattern includes cityscape images for inner bearing regions where the vehicle is in a specific location. This allows the system to use simplified pattern-based representation instead of complete location-specific databases, reducing processing complexity while maintaining display accuracy through region-specific pattern selection.
Data Source
AI summary
An image processing apparatus is disclosed that displays a three-dimensional map including displays of a road and a three-dimensional building on a display unit. The image processing apparatus includes a managing unit that divides bearings into a predetermined number of bearing regions and manages identification information of a distant view pattern assigned to each of the bearing regions for each of a plurality of locations, an acquisition unit that acquires identification information of the distant view pattern assigned to each of the bearing regions for a current location, and a depiction unit that depicts a background image behind a display area for displaying the road and the building based on the acquired identification information of the distant view pattern.