3D Model Distribution by Change Rate for Real-Time Updates
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Solution Overview
Problem
Existing three-dimensional model distribution methods lack the ability to properly respond to user requests for real-time or delayed updates, leading to inefficiencies in data transmission and processing delays.
Innovation Solution
A three-dimensional model distribution method that separates models into different distribution modes based on their change frequency, using a first mode for models with rapid changes (foreground) and a second mode for models with slower changes (background), employing distinct encoding and generating methods to optimize data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If three-dimensional model data is distributed for each element (polygon or voxel) to enable real-time updates, then the responsiveness to user requests is improved, but the network bandwidth consumption increases significantly
Solution Approach 1:
The patent segments the three-dimensional model data by dividing it into foreground elements (which change frequently) and background elements (which change infrequently). This segmentation allows the system to apply different distribution strategies to different parts of the model, transmitting only the necessary updates rather than entire models, thereby reducing overall data transmission volume while maintaining real-time responsiveness for dynamic elements.
Solution Approach 2:
The patent changes the parameter of data transmission by switching between distributing complete model data and distributing only differential update data. By detecting the type of change request and the nature of elements involved, the system dynamically adjusts what data to transmit - either full models or selective updates - optimizing the balance between update speed and bandwidth consumption.
2Measurement precision
If complete three-dimensional model data is distributed to ensure data completeness, then the measurement precision is improved, but the processing delay increases
Solution Approach 1:
The patent extracts and transmits only the necessary portions of three-dimensional model data based on the user's request type and the specific elements that have changed. Instead of distributing complete models, the system identifies and transmits only the relevant foreground or background elements that need updating, thereby reducing processing delay while maintaining data completeness for the requested view.
Solution Approach 2:
The patent applies partial action by transmitting only the minimum necessary data to satisfy the user request. For background elements that change infrequently, the system may reuse previously transmitted data rather than transmitting updates, thereby reducing processing delay while maintaining sufficient data completeness for rendering the three-dimensional view.
3Productivity
If different distribution modes are used for foreground and background elements, then the productivity is improved, but the device complexity increases
Solution Approach 1:
The patent introduces dynamic characteristics to the distribution system by automatically adjusting the distribution mode based on the element type (foreground or background) and the nature of the change request. The system dynamically selects between different distribution strategies - transmitting complete foreground elements vs. using differential updates for background elements - thereby improving distribution efficiency without requiring manual configuration or complex external control systems.
Data Source
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AI summary
A three-dimensional model distribution method includes: distributing a first model, which is a three-dimensional model of a target space in a target time period, in a first distribution mode; and distributing a second model, which is a three-dimensional model of the target space in the target time period and makes a smaller change per unit time than the first model, in a second distribution mode different from the first distribution mode (S107C). For example, the first distribution mode may have a shorter distribution period than a distribution period of the second distribution mode. For example, a first encoding method may be used in the first distribution mode, and a second encoding method having a larger processing delay than the first encoding method may be used in the second distribution mode.