Planar Attachment Image for Spherical Panoramas
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Solution Overview
Problem
Existing image management systems fail to accurately attach user-drawn images to full spherical panoramic images without curvature, leading to distorted views when the point of view is changed.
Innovation Solution
An image management system that generates and attaches a planar attachment image to the full spherical panoramic image along a straight line intersecting with its boundary, with the attachment point offset from the first intersection point towards the second, ensuring the image remains uncurved and maintains its original appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the attachment image is attached to a full spherical panoramic image following the spherical surface curvature, then the attachment image conforms to the spherical geometry, but the drawn image becomes distorted and curved when the point of view is moved
Solution Approach 1:
The patent transitions from attaching the attachment image on the curved spherical surface to attaching it on a planar (flat) surface. This dimensional change from curved to flat attachment surface prevents the drawn image from being distorted by spherical curvature while maintaining visibility on the full spherical panoramic image display
Solution Approach 2:
The patent applies different attachment characteristics to different regions: the attachment image is kept planar with straight lines remaining straight, while the surrounding full spherical panoramic image maintains its spherical projection. This local differentiation ensures the drawn image retains its original shape without being forced to conform to spherical geometry
2Manufacturing precision
If the attachment image is attached as a planar image to the full spherical panoramic image, then the drawn image maintains its original shape without curvature, but the attachment position must be precisely calculated relative to the spherical coordinate system
Solution Approach 1:
The patent performs preliminary calculation of the attachment position on the spherical coordinate system before actually displaying the planar attachment image. By pre-calculating the intersection points and offset distances on the spherical surface, the system simplifies the subsequent rendering process and ensures accurate positioning without real-time complex computations
Solution Approach 2:
The patent introduces an intermediary coordinate transformation process that maps between the spherical coordinate system of the full spherical panoramic image and the planar coordinate system of the attachment image. This intermediary mapping layer handles the complexity of coordinate conversion, allowing the attachment image to be positioned accurately without directly complicating the display rendering
Data Source
Figure 1A~1C
Figure 2
Figure 3A~3C
AI summary
An image management system (5) controls a display of a captured image, the system being connected to a communication terminal through a network. The system includes a data exchange unit (51) to receive, from the communication terminal, an instruction for displaying a drawn image drawn by a user on a captured image while the captured image is being displayed to the user, the captured image being a full spherical panoramic image; a generation unit (53) to generate an attachment image containing a drawn-image; and an attachment unit (56) to attach the attachment image containing the drawn image to the captured image, the attachment image containing the drawn image being a planar image.