Mobile Object Surrounding Display With Selective 2D/3D Data Switching
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Solution Overview
Problem
Current display devices for three-dimensional data lack the ability to provide random access and efficient encoding methods for encoded three-dimensional data, which is essential for applications involving mobile objects and the transmission of detailed spatial information.
Innovation Solution
A method for encoding and decoding three-dimensional data that divides the data into random access units, allowing for efficient encoding and decoding by referencing other units, and selectively transmitting data based on the intended use and conditions, such as the mobile object's status and environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If three-dimensional data is compressed by encoding for accumulation and transmission, then the data transmission efficiency is improved, but the ability to provide random access and efficient decoding is degraded
Solution Approach 1:
The patent segments three-dimensional data into multiple layers with different levels of detail. Each layer can be independently encoded and transmitted, allowing the system to selectively transmit only the necessary layers based on current needs. This segmentation enables both efficient compression (by transmitting fewer layers) and random access (by directly decoding specific layers without processing all layers), resolving the contradiction between transmission efficiency and random access capability.
2Loss of information
If detailed three-dimensional spatial information is transmitted, then the information completeness is improved, but the data transmission load is increased
Solution Approach 1:
The patent applies local quality by creating multiple layers of three-dimensional data with different levels of detail. Coarse layers provide overall spatial structure while fine layers add detailed information. The system can transmit only the necessary layers based on current requirements - for example, transmitting only coarse layers for distant objects or low-priority views, and adding fine layers only when detailed information is needed. This reduces overall data transmission volume while maintaining the ability to provide complete spatial information when required.
Data Source
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AI summary
A display method is a display method performed by a display device that operates in conjunction with a mobile object, and includes: determining (S901) which one of first surrounding information, which is video showing a surrounding condition of the mobile object and is generated using two-dimensional information, and second surrounding information, which is video showing the surrounding condition of the mobile object and is generated using three-dimensional data, is to be displayed, based on a driving condition of the mobile object; and displaying (S903, S904) the one of the first surrounding information and the second surrounding information that is determined to be displayed.