Panoramic Image Thumbnail Generation via Resolution and Aspect Ratio Adjustment
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Solution Overview
Problem
Panoramic images, being horizontally or vertically longer than general still images, pose challenges in thumbnail display as simply reduced images diminish visibility, especially when multiple thumbnails are listed, and existing 3D thumbnail techniques require heavy processing and do not directly represent the entire panoramic image.
Innovation Solution
An image processing device that generates both first thumbnail image data through resolution conversion and second thumbnail image data through aspect ratio adjustment processing, allowing for appropriate thumbnail display based on various circumstances, including display screen ratios and the number of thumbnails, by selecting appropriate aspect ratio adjustment methods and viewpoint positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If resolution conversion is applied to panoramic image data to generate thumbnail images, then the entire panoramic image is represented, but the visibility of users is considerably diminished when multiple thumbnails are listed
Solution Approach 1:
The patent divides thumbnail generation into two separate processes: one that maintains the entire panoramic image representation (resolution conversion) and another that optimizes visibility through aspect ratio adjustment. By segmenting the thumbnail generation function, the system can provide different thumbnail types for different display scenarios, resolving the contradiction between representing the entire image and ensuring visibility.
Solution Approach 2:
The patent changes the aspect ratio parameter of the thumbnail image through aspect ratio adjustment processing. This parameter change allows the thumbnail to be displayed with improved visibility and proportions on standard display screens while still representing the panoramic image content, thereby resolving the visibility issue without completely sacrificing the representation of the entire image.
2Illumination intensity
If 3D thumbnail image technique is used to improve visibility, then thumbnail images are easier to view, but heavy processing load is required and the entire panoramic image is not directly represented
Solution Approach 1:
The patent extracts the aspect ratio adjustment function from complex 3D rendering processes. Instead of using computationally intensive 3D thumbnail techniques, the system uses a simpler aspect ratio adjustment processing that modifies the image dimensions to achieve better visibility and display proportions, thereby reducing processing load while maintaining improved viewing ease.
3Illumination intensity
If aspect ratio adjustment processing is applied to panoramic image data, then visibility is improved, but the entire panoramic image cannot be directly represented
Solution Approach 1:
The patent creates a multi-functional thumbnail generation system that can produce different types of thumbnails (resolution-converted and aspect-ratio-adjusted) from the same panoramic image data. This universality allows the system to adapt to different display requirements and scenarios, providing appropriate thumbnail representations without being forced to choose between visibility and complete representation.
Data Source
AI summary
[Object] To generate, for a panoramic image, a thumbnail image showing satisfactory visibility when displayed.[Solution] Both first thumbnail image data generated by applying resolution conversion to panoramic image data generated by combining a plurality of captured images and second thumbnail image data generated by performing aspect ratio adjustment processing on the panoramic image data are generated as thumbnail images for the panoramic image data.