Image Display System Zoom Level Switching Without Position Data
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Solution Overview
Problem
Existing image display systems require embedded position information to switch images based on zoom level changes, limiting their functionality when images lack such information.
Innovation Solution
An image display system that calculates the display range of an image after zoom level change, specifies a part of a different image with varying resolution, and generates and transmits a new image to the user terminal for seamless switching, even without initial position information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If position information is embedded in images to enable zoom level switching, then image switching accuracy is improved, but image preparation complexity increases
Solution Approach 1:
The system pre-calculates and stores display range information for multiple zoom levels in advance. When a zoom level change occurs, the system simply retrieves the pre-computed display range corresponding to the target zoom level, avoiding the need for real-time calculations and eliminating the requirement for embedding position information in images.
Solution Approach 2:
The invention introduces a display range calculation unit that acts as an intermediary between the image data and the display control. This unit computes the display ranges for different zoom levels and stores them as intermediate data, which then serves as the basis for seamless image switching without requiring position information embedding in the original images.
2Manufacturing precision
If multiple images with different resolutions are stored for zoom level switching, then image display quality is improved, but storage requirements increase
Solution Approach 1:
The system divides a single high-resolution image into multiple segments or regions corresponding to different zoom levels. Instead of storing multiple complete images, only the relevant segments are retrieved and displayed at each zoom level, significantly reducing storage requirements while maintaining display quality.
Solution Approach 2:
The invention extracts and stores only the essential display range information from high-resolution images at different zoom levels. By extracting just the necessary portions (display ranges) rather than storing complete high-resolution images for every zoom level, the system reduces storage requirements while preserving image display quality.
3Speed
If real-time image generation is performed during zoom level changes, then response speed is improved, but processing load increases
Solution Approach 1:
The system pre-calculates and stores display range information for multiple zoom levels in advance. When a zoom level change occurs, the system simply retrieves the pre-computed display range corresponding to the target zoom level, avoiding the need for real-time calculations and reducing processing load while maintaining fast response speed.
4Measurement precision
If position information embedding is required for zoom level switching, then system compatibility is reduced, but image positioning accuracy is improved
Solution Approach 1:
The invention creates a universal image display system that can handle both images with and without position information. By using display range calculation as a general approach that works with any image type, the system achieves broad compatibility while maintaining positioning accuracy through computational methods rather than relying on position information embedding.
Data Source
AI summary
The image display system includes a calculation unit, a specifying unit, a generation unit and a transmitting unit. Upon change of a zoom level of a current image not containing position information to a specified value on a user terminal, the calculation unit calculates a display range of an object represented by the current image after change in zoom level. The specifying unit refers to data of a different image of the object and specifies a part of the different image indicated by the display range calculated by the calculation unit. The different image has a different resolution from the current image. The generation unit generates a next image representing the part specified by the specifying unit using the data of the different image. The transmitting unit transmits the next image to the user terminal for switching from the current image to the next image.