Parallax Map Processing for 3D Display Depth Adaptation
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Solution Overview
Problem
Existing 3D display systems face challenges in rendering optimal parallax information due to mismatched depth ranges between content creation and target display devices, leading to suboptimal 3D rendering experiences, especially on smaller screens or home 3D displays that do not meet the viewing conditions of larger cinema systems.
Innovation Solution
A method and device that process parallax information by obtaining and interpolating between different parallax information transforms to match the depth range of a target 3D display device, allowing for the generation of an updated signal that adjusts parallax maps to fit the available parallax range of the device, thereby enhancing 3D rendering capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If parallax information is optimized for cinema systems with large screens and specific viewing conditions, then 3D rendering quality is improved for cinema displays, but 3D rendering performance deteriorates on smaller home displays and other target devices with different parallax ranges
Solution Approach 1:
The patent changes the parameters of parallax information by transforming depth values from one range to another. The system receives parallax information optimized for cinema systems and applies parameter transformation to adapt it to different depth ranges required by home displays and other target devices, thereby resolving the contradiction between optimization for specific systems and adaptability across devices
Solution Approach 2:
The patent implements dynamic adaptation of parallax information transforms based on the target display device characteristics. The system selectively applies different transforms or combinations of transforms depending on whether the target is a home display, portable device, or other platform, making the parallax information flexible and adaptable rather than static and device-specific
2Device complexity
If a single parallax information transform is provided for a specific depth range, then processing complexity is reduced, but rendering accuracy deteriorates when the target device requires a different depth range
Solution Approach 1:
The patent segments the parallax information transformation into multiple distinct transforms, each optimized for a specific depth range. Instead of using a single transform for all cases, the system divides the transformation task into multiple specialized transforms that can be selectively combined or applied based on the target device requirements
Solution Approach 2:
The patent creates composite parallax transforms by combining multiple individual transforms. The system receives first and second parallax information transforms and generates a third composite transform that integrates characteristics of the input transforms, achieving both accuracy for specific depth ranges and adaptability to different target devices
3Ease of manufacture
If parallax information is created assuming average viewing conditions, then content creation simplicity is improved, but rendering quality deteriorates for non-average display configurations
Solution Approach 1:
The patent prepares multiple parallax information transforms in advance during content creation, each optimized for different depth ranges and viewing conditions. This preliminary preparation allows the content to be adapted to various target devices without requiring complex real-time processing or device-specific content creation
Solution Approach 2:
The patent makes the parallax information multi-functional by providing transforms that can serve multiple target devices with different characteristics. The same set of transforms can be used for home displays, portable devices, and other platforms, eliminating the need to create separate content for each device type
Data Source
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AI summary
This invention relates to a method and a device of processing parallax information comprised in a signal. A signal comprising parallax map associated with further image information is received. A first data is obtained from the signal indicative of first parallax map constraints. A second data is obtained from the signal indicative of second parallax map constraints. Third data matching third parallax map constraints of a target device is determined by means of processing the at least the first data and the second data. This third data is used to generate an updated signal matching the parallax map information constraints of the target device.