Vehicle Display Viewpoint Selection for ADAS Observation Goals
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Solution Overview
Problem
In complex driving situations, the default viewpoint provided by advanced driver assistance systems (ADAS) may not adequately meet specific observation objectives, leading to user dissatisfaction due to the inefficiency and resource-intensive nature of exhaustive searches for optimal viewpoints.
Innovation Solution
The system employs methods and apparatus to efficiently identify an optimal viewpoint by comparing the extent to which alternative views meet predefined criteria, using a processor to search the virtual driving space and adjust criteria based on user preferences, such as path resistance and content complexity, to determine the best viewpoint for rendering on a vehicle display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the system performs an exhaustive search for optimal viewpoints, then the viewing quality is improved, but the time and computational resources required increase significantly
Solution Approach 1:
The patent segments the continuous viewpoint search space into a discrete grid of candidate viewpoints. This segmentation allows the system to evaluate only specific predetermined locations rather than continuously searching through all possible viewpoints, thereby reducing computational complexity while maintaining adequate viewing quality assessment.
Solution Approach 2:
The patent performs preliminary evaluation of candidate viewpoints using scoring functions that assess viewing quality metrics before selecting the optimal viewpoint. This preliminary scoring eliminates the need for exhaustive detailed analysis of every possible viewpoint, as the scoring function pre-ranks candidates based on expected quality measures such as path resistance and content complexity.
2Productivity
If the system uses a default viewpoint, then the computational resources are saved, but the viewing quality may not meet specific observation objectives
Solution Approach 1:
The patent implements a dynamic viewpoint selection system that adapts the viewpoint based on current driving conditions, observation objectives, and user preferences. Rather than using a static default viewpoint, the system dynamically evaluates candidate viewpoints against current scene characteristics and selects the optimal one, thereby maintaining computational efficiency while improving viewing quality to meet specific observation objectives.
Solution Approach 2:
The patent changes key parameters such as path resistance and content complexity to determine the optimal viewpoint. By adjusting these parameters based on the current driving situation and user preferences, the system can efficiently select viewpoints that meet specific observation objectives without requiring exhaustive search, thus maintaining both computational efficiency and viewing quality.
Data Source
AI summary
Apparatus and methods disclosed herein provide an optimal viewpoint from which a virtual camera views a scene in an environment surrounding an ego vehicle. A first value is determined indicating an extent to which a first view from a default viewpoint of the virtual camera satisfies first and second view observation objectives. A second value is determined indicating an extent to which a second view from an alternative viewpoint of the virtual camera satisfies the first and second view observation objectives. If the second value exceeds the first value by an amount greater than a specified criterion value, the alternative viewpoint is selected for the virtual camera. If the second value does not exceed the first value by an amount greater than the specified criterion value, the default viewpoint is selected for the virtual camera.