Thumbnail Acquisition Retry Logic for HTML Display Errors
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Solution Overview
Problem
Existing techniques for displaying HTML files by Web browsers are inefficient when images are not present at the time of delay reading, leading to errors and incomplete rendering of the screen.
Innovation Solution
An information processing apparatus and system that acquires and outputs thumbnail images from a moving image server, generating and storing them if not present, and requesting their acquisition until successful, with the option to display alternative images until the thumbnails are available, and performing requests at predefined intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If delay reading technique is used to display HTML sections before images, then viewing responsivity is improved, but errors occur when images are not present at the time of reading
Solution Approach 1:
The system performs preliminary actions by continuously monitoring and pre-loading thumbnail images in the background before they are actually needed for display. The control unit checks for the presence of thumbnail images and initiates loading operations proactively, so that when the delay reading technique attempts to display images, they are already available, thus preventing errors while maintaining fast viewing responsivity.
2Reliability
If thumbnail images are requested immediately when HTML is rendered, then complete screen display is achieved, but display efficiency decreases when images are not yet available
Solution Approach 1:
The system dynamically adjusts the image loading strategy based on real-time conditions. The control unit continuously monitors whether thumbnail images are present and adapts its behavior: when images are available, they are immediately displayed; when not available, the system waits and retries at predefined intervals. This dynamic approach ensures complete rendering is achieved while optimizing display efficiency by avoiding premature failed requests.
3Productivity
If alternative images are displayed when thumbnails are missing, then continuous screen rendering is maintained, but image quality or accuracy may be compromised
Solution Approach 1:
The system uses placeholder images as intermediaries during the transition period when actual thumbnail images are not yet available. These placeholder images maintain the layout structure and allow continuous rendering of the operation screen, while the control unit simultaneously retrieves the actual thumbnail images. Once the real thumbnails are obtained, they replace the placeholders, ensuring both continuous rendering and final image accuracy.
Data Source
AI summary
There is provided an information processing apparatus including a control unit configured to acquire and output information of an operation screen on a display unit from a relay apparatus storing the information of the operation screen, the relay apparatus being configured to relay at least one moving image from a moving image server, in which the moving image is stored, to a different device via a network, request the thumbnail image to be arranged in the region of the operation screen to the relay apparatus, arrange the acquired thumbnail image in the region if the thumbnail image requested is acquired, and request a thumbnail image the acquisition of which fails until the acquisition is succeeded if the acquisition is failed due to the fact that the thumbnail image is not present.