Omnidirectional Image Editing via Texture-to-Screen Coordinate Inversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing omnidirectional image editing methods are inefficient, as they do not allow for intuitive editing of omnidirectional images with semi-transparent or alpha blend capabilities, and they require excessive time for production, especially when dealing with wider view angles.
Innovation Solution
An omnidirectional image editing program and apparatus that includes a manipulation input unit, a displaying unit, and a central control unit, which allows for view direction changes and drawing parameters to be input, enabling intuitive editing by renewing view directions and angles, and performing screen renewal processing without moving the viewpoint, thereby enabling efficient editing of omnidirectional images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the prior art method uses general mesh and converts from screen coordinate system to texture coordinate system for editing, then the editing process can be performed, but the production time becomes excessive and the view angle is limited
Solution Approach 1:
The patent inverts the conventional coordinate conversion approach by mapping texture coordinates to screen coordinates rather than converting from screen to texture coordinates. This reversal enables more efficient processing and supports wider view angles without excessive production time
Solution Approach 2:
The patent changes the coordinate system mapping parameters by using a direct texture-to-screen coordinate transformation instead of the conventional screen-to-texture conversion. This parameter change optimizes the editing process efficiency and expands the supported view angle range
2Ease of operation
If the prior art method edits image data externally with feedback loops, then editing can be performed, but the process requires excessive time
Solution Approach 1:
The patent merges the editing functionality directly into the omnidirectional image processing system, eliminating the need for external editing programs and feedback loops. This integration maintains full editing capability while dramatically reducing production time
3Reliability
If the prior art method uses polygons with oblique angles and exempts them from processing, then texture data changes are prevented, but intuitive editing for wider view angles is restricted
Solution Approach 1:
The patent reverses the selective processing approach by applying the coordinate transformation to all polygons uniformly rather than exempting oblique-angled polygons. This enables intuitive editing across the entire omnidirectional image including wide view angles while maintaining texture data stability through consistent transformation rules
Data Source
AI summary
This invention has an object to provide an image editing program and apparatus allowing users to intuitively produce images covering the omnidirection. In a virtual space, an omnidirectional image is projected according to a coordinate conversion and displayed at a display device 20. For omnidirectional image edition, a view direction and a view angle are changed in the virtual space with a pointing device 30, and under control of a central control unit 11, display of the omnidirectional image in a screen image is renewed to perform two-dimensional drawing to an image for drawing having the same coordinate system as that of the screen image with the pointing device 30 using the screen image as a clue. After the end of drawing, the coordinate conversion is made to the drawing image to project the image at a proper position of the omnidirectional image. The omnidirectional image is thus completed by repeating the steps of view direction changes and drawing.