Spherical Image Display Range Consistency Across Devices
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Solution Overview
Problem
When displaying a spherical image on a device different from the server, it is challenging to maintain the same display range as on the server, affecting user immersion and consistency across devices.
Innovation Solution
The system allows users to designate a specific display range for spherical images, which can be shared and maintained across devices, ensuring that the same range is displayed on both the server and external devices by including direction information as metadata, enabling consistent visualization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a spherical image is displayed on a device different from the server, then the image can be viewed on multiple devices, but the display range becomes inconsistent across devices
Solution Approach 1:
The system performs preliminary action by storing direction information (metadata) indicating the desired display range with the spherical image data before transmission. When the image is viewed on different devices, the playback device retrieves this pre-stored direction information and automatically configures the display range accordingly, eliminating the need for manual re-designation and ensuring consistency across devices.
Solution Approach 2:
Direction information serves as an intermediary element between the server and playback devices. This metadata acts as a carrier that transmits the intended display range parameters from the server to various playback devices, enabling them to reproduce the same display range without direct intervention from the original designating device.
2Ease of operation
If the display range is automatically adjusted on different devices, then device compatibility is improved, but user immersion and presence are reduced
Solution Approach 1:
The system implements feedback by storing direction information that reflects the original intended viewing experience. When the spherical image is played back on different devices, this stored direction information provides feedback to the playback device about what display range should be used, enabling automatic configuration that maintains user immersion and presence rather than making arbitrary adjustments.
3Manufacturing precision
If direction information is stored as metadata, then display range consistency is achieved across devices, but data storage requirements increase
Solution Approach 1:
The direction information stored as metadata represents a small, lightweight data structure compared to the full spherical image data. This metadata is essentially a simplified representation (disposable copy) that contains only the necessary parameters (azimuth and elevation angles) to reconstruct the display range, occupying minimal storage space while achieving the goal of display consistency.
Data Source
Figure 1A~1B
Figure 1C
Figure 2A~2C
AI summary
An electronic device includes: a receiving unit configured to receive (i) a first instruction for designating, as a display range, a part of a range of an image that is read out from a storing unit and sent to an external device, and (ii) a second instruction for sending the image stored in the storing unit to the external device; a control unit configured to, according to the second instruction, send the stored image and information relating to the display range designated by the first instruction to the external device, and to associate the information with the stored image; and a display control unit configured to, in a case where the information is associated with the stored image, display the display range based on the associated information, wherein the display range designates a part of the range of the stored image for viewing.