3D Scene Navigation via Building Interest Value Camera Speed
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Solution Overview
Problem
Current navigation technologies for three-dimensional scenes are limited by fixed camera speeds, require user calibration, are not fully automatic, and lack smooth visual perception, making them inefficient and scene-specific.
Innovation Solution
A navigation method that calculates a camera's interest value based on heights, volumes, irregularities, and uniqueness of buildings, generating adaptive trajectory parameters for smooth camera movement and automatic navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fixed camera speed and viewpoint are used for navigation, then the navigation system is simple to implement, but the visual perception is not continuous or smooth enough and cannot adapt to different scene features
Solution Approach 1:
The patent implements dynamic camera control by calculating camera speed based on the interest values of consecutive viewpoints. The camera accelerates when interest values are low and decelerates when interest values are high, creating a dynamic navigation system that adapts to scene features automatically. This resolves the contradiction by replacing fixed parameters with dynamically adjusted ones.
Solution Approach 2:
The patent changes the parameter of camera speed from a fixed value to a variable determined by the difference in interest values between consecutive viewpoints. By using the formula v = k * (I_next - I_current), the system automatically adjusts speed parameters based on scene importance, achieving adaptability while maintaining implementation simplicity through a clear parameter relationship.
2Extent of automation
If automatic navigation is implemented without considering user attention, then the navigation process is fully automatic, but the user's attention and interest are not maintained
Solution Approach 1:
The patent introduces feedback mechanisms by calculating interest values based on building characteristics (height, volume, irregularity, uniqueness) and using these values to control camera behavior. The system continuously monitors scene features and adjusts navigation accordingly, maintaining user attention through automatic interest-based control while preserving full automation.
Solution Approach 2:
The navigation system serves itself by automatically calculating interest values and determining camera speed without user intervention. The system uses predefined criteria for evaluating building interest and autonomously adjusts navigation parameters, achieving both full automation and user attention maintenance through self-directed interest-based control.
3Device complexity
If camera trajectory is generated without considering camera moving speed, then the path planning is simpler, but the navigation lacks smooth visual perception and user attention control
Solution Approach 1:
The patent performs preliminary calculation of interest values for all viewpoints along the trajectory before executing navigation. By pre-calculating the interest value sequence and determining the corresponding speed profile in advance, the system ensures smooth visual perception without adding complex real-time computation, maintaining simplicity while improving navigation quality.
Data Source
AI summary
The present disclosure provides a navigation method based on a three-dimensional scene, comprising: calculating an interest value of a viewpoint of a camera based on heights, volumes, irregularities and uniqueness of buildings in a scene; generating trajectory parameters of the camera according to the interest value of the viewpoint, so as to navigate according to the trajectory parameters. The navigation method based on a three-dimensional scene of the present disclosure obtains a reasonable interest value of the viewpoint based on heights, volumes, irregularities and uniqueness of the buildings, thereby achieving a high-quality navigation.