3D Graphic Stream Depth Value Assignment Method
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Solution Overview
Problem
Current methods for processing graphic streams to produce 3D images struggle with effectively determining and applying depth values to graphic objects, leading to inconsistent and suboptimal 3D rendering.
Innovation Solution
A method and apparatus that decode graphic streams to generate two-dimensional composition information and color information, using metadata to create three-dimensional composition information by assigning different or uniform depth values to graphic objects, and outputting these objects as left and right eye images to create a 3D effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If different depth values are assigned to graphic objects to achieve accurate 3D rendering, then 3D rendering precision is improved, but device complexity increases due to the need to determine and manage depth values for each object
Solution Approach 1:
The system automatically determines whether a graphic stream requires 3D rendering and selects appropriate depth values without user intervention. The reproducing apparatus autonomously analyzes the graphic stream metadata and applies depth values based on predetermined rules, eliminating the need for manual depth configuration while achieving accurate 3D rendering.
Solution Approach 2:
The system dynamically changes depth values based on the type of graphic objects detected in the stream. Different depth values are automatically assigned to different object types (e.g., subtitles, menus, graphics) according to predetermined depth information, enabling precise 3D rendering without requiring complex manual parameter management.
2Manufacturing precision
If 3D capability determination is performed for all graphic streams, then 3D rendering accuracy is improved, but processing time increases
Solution Approach 1:
Depth information and 3D rendering parameters are predetermined and stored in the system for different types of graphic objects. When a graphic stream is received, the system only needs to identify the object type and retrieve the corresponding predetermined depth information, rather than calculating depth values in real-time, significantly reducing processing time while maintaining accuracy.
3Reliability
If depth values are assigned to make graphic objects appear at different depths, then 3D visual effect is improved, but inconsistency in depth assignment leads to suboptimal rendering
Solution Approach 1:
The system automatically adjusts depth values based on the specific type of graphic object detected. Different predetermined depth values are applied to different object types (subtitles, menus, graphics, etc.), ensuring consistent and accurate depth assignment that matches the intended visual hierarchy and 3D spatial relationships.
Data Source
AI summary
Provided are a method and apparatus for processing a graphic stream. The method may include determining whether a graphic picture is reproducible as a three-dimensional (3D) image by assigning different depth values according to graphic objects or by assigning the same depth value to the graphic picture, using 3D capability information.