Map Display Transition Model for Smooth Scene Changes
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Solution Overview
Problem
Current panoramic map display technologies result in abrupt scene changes when switching between views, lacking vividness due to direct replacement of spherical models, which increases system resource consumption and fails to provide a transition effect.
Innovation Solution
A map display method involving an initial image divided into sub-images, with one sub-image mapped to a first plane and the other to a second plane of a transition model, where the second plane's angle is adjusted to create a smooth transition effect, enhancing the vividness of scene changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a panoramic picture is directly replaced in the spherical model to achieve scene change, then the scene switch is simple and fast, but the performance of scene change is abrupt and lacks vividness
Solution Approach 1:
The panoramic picture is divided into multiple sub-pictures (first sub-picture, second sub-picture, etc.) along the road direction. This segmentation allows the scene transition to be achieved by sequentially displaying adjacent sub-pictures, creating a gradual transition effect that enhances vividness while maintaining operational simplicity.
Solution Approach 2:
The patent introduces a new dimension of transition by mapping sub-pictures to planes with different included angles in the spherical model. The second plane is rotated relative to the first plane, and the included angle is gradually reduced during transition. This angular dimension provides a smooth transition path that was missing in direct replacement, enhancing scene change vividness without complicating the switching operation.
2Reliability
If multiple spherical models are used to achieve scene transition, then the vividness of scene change is improved, but the system resource consumption increases
Solution Approach 1:
A single spherical model is reused for multiple scenes through the transition mechanism. The same spherical model displays different panoramic pictures at different time points during the transition process, eliminating the need for multiple separate spherical models. This multi-functional use of one model reduces memory allocation and system resource consumption while maintaining the vivid transition effect.
Solution Approach 2:
Instead of creating multiple full spherical models, the patent uses virtual copying through coordinate transformation and plane rotation. The visual effect of multiple models is achieved by transforming the display orientation of a single model, significantly reducing resource consumption while preserving the transition vividness.
3Reliability
If the included angle between planes is gradually reduced during transition, then the smooth transition effect is achieved, but the transition time is extended
Solution Approach 1:
The transition process uses periodic action by dividing the angle reduction into discrete time points (first time point, second time point, etc.). At each time point, the included angle is reduced by a controlled amount, creating a rhythmic transition sequence. This periodic approach balances smoothness with time efficiency, as the transition completes in finite steps rather than requiring continuous infinite time.
Solution Approach 2:
The transition mechanism dynamically adjusts the included angle between planes during the scene change process. The angle is not fixed but evolves over time from the initial angle to the final angle, providing dynamic control over the transition speed and smoothness. This dynamic adjustment allows optimization of both transition quality and duration.
Data Source
AI summary
This application discloses a map display method and apparatus, where the method includes: obtaining an initial image, where a first road is included in the initial image. The initial image is divided into a first sub-image and a second sub-image, where the first road is not included in the first sub-image, and the first road is included in the second sub-image. The first sub-image is mapped to a first plane of a transition model, and the second sub-image is mapped to a second plane of the transition model, where there is an included angle between the first plane and the second plane, and the first plane is parallel to a screen of a display device. The second plane is controlled to move by means of the transition model, until the included angle is reduced from a first angle to a second angle, and a three-dimensional map display animation is obtained.