2D to 3D Content Switching via Pre-rendered Graphics
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Solution Overview
Problem
Current Blu-ray disc technology does not support simultaneous 3D video and graphic image display, leading to user discomfort when switching from 2D to 3D as graphic images take longer to render using Java language, resulting in overlapping 2D graphics with 3D video.
Innovation Solution
A content reproducing apparatus with separate video and graphics planes, a program executing portion, and a switching mechanism that ensures graphic images are fully generated before switching from 2D to 3D, allowing simultaneous output of combined video and graphic images in 3D format.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If graphic images are rendered using Java language, then graphic functionality is achieved, but rendering time is excessively long causing delay when switching from 2D to 3D
Solution Approach 1:
The patent applies preliminary action by pre-rendering graphic images before video switching occurs. The system determines switching timing in advance and completes graphic image generation prior to the actual 2D-to-3D transition, ensuring both video and graphics switch simultaneously without delay.
2Stability of the object's composition
If graphic images are fully rendered before switching, then switching synchronization is achieved, but processing time before switching increases
Solution Approach 1:
The system performs preliminary rendering of graphic images before the scheduled switching time. By determining the switching timing in advance and completing graphic generation beforehand, the patent achieves synchronized switching while managing processing time efficiently.
3Speed
If simple switching of graphics source is performed, then switching speed is fast, but 3D graphic images are not completely output causing user discomfort
Solution Approach 1:
Instead of simple switching, the patent completes the rendering of 3D graphic images before switching. The system determines switching timing in advance and ensures both video and graphic images are fully prepared, achieving complete and synchronized 3D output without user discomfort.
4Ease of operation
If video and graphic images are switched independently, then individual switching is simple, but overlapping 2D graphics with 3D video occurs causing user discomfort
Solution Approach 1:
The patent merges the switching control of video and graphic images into a unified process. By determining switching timing in advance and completing both video decoding and graphic rendering before simultaneous switching, the system prevents overlapping and ensures visual consistency between 3D video and 3D graphics.
Data Source
AI summary
A contents reproduction device can concurrently switch a video image and a graphics image from 2D to 3D. A contents reproduction device includes a program execution unit that outputs a graphics image used for 2D to a left graphics plane and outputs a graphics image used for 3D to left and right graphics planes; an AV reproduction unit outputs a video image used for 2D to the left video plane and outputs a video image used for 3D to the left and right video planes; and a switch unit outputs a first synthesized image of images stored at the left video plane and the left graphics plane at the 2D reproduction time and switches to output a second synthesized image of images stored at the right video plane and the right graphics plane and the first synthesized image at the 3D reproduction time.