3D Video Response Time Compensation via Black Frame Insertion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional 3D video processing systems face challenges in mitigating crosstalk and improving the viewing experience due to the limitations of liquid crystal display response time and refresh rates, leading to vestige illumination and perceived artifacts.
Innovation Solution
A method and system for response time compensation in 3D video processing, which involves generating and displaying formatted 3D video and graphics frames in a specified sequential pattern with inserted black frames that exceed the liquid crystal display response time, synchronized with 3D shutter glasses to adaptively manage light transmission and blockage, thereby reducing crosstalk and enhancing image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional 3D video processing is used with standard refresh rates, then the system operates within normal performance parameters, but crosstalk and vestige illumination artifacts occur due to insufficient liquid crystal display response time
Solution Approach 1:
The patent applies preliminary action by inserting black frames before the actual 3D video frames are displayed. These black frames are displayed during the liquid crystal response time period to ensure that any residual illumination from previous frames is completely cleared before the next frame begins, thereby preventing crosstalk and vestige illumination artifacts
Solution Approach 2:
The patent implements periodic action by creating a structured display sequence that alternates between black frames and 3D video frames in a repeating pattern. This periodic structure ensures consistent timing and synchronization, allowing the liquid crystal display to fully reset between frames while maintaining the 3D viewing experience through synchronization with shutter glasses
2Object-generated harmful factors
If black frames are inserted to exceed liquid crystal display response time, then crosstalk is reduced, but the display duration and frame rate are affected
Solution Approach 1:
The patent applies parameter changes by modifying the display timing parameters to accommodate the liquid crystal response time. Specifically, it adjusts the frame duration and insertion of black frames to ensure that the total display cycle exceeds the response time of the liquid crystal material, thereby eliminating crosstalk while maintaining acceptable frame rates for 3D content
3Reliability
If frame sequencing is optimized for liquid crystal response time, then vestige illumination is cleared, but the frame rate and refresh cycle are reduced
Solution Approach 1:
The patent applies partial or excessive action by inserting more black frames than the minimum required to clear vestige illumination. This excessive action ensures complete elimination of artifacts by providing sufficient time for the liquid crystal to fully reset, even though it reduces the overall frame rate. The approach prioritizes image quality over maximum frame rate
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively mitigates crosstalk and improves the 3D video viewing experience by ensuring that vestige illumination is cleared before displaying subsequent frames, resulting in a more realistic and artifact-free stereoscopic view.
Implementation Method 1
due to the limitations of liquid crystal display response time and refresh rates
Implementation Method 2
synchronized with 3D shutter glasses to adaptively manage light transmission and blockage
Data Source
AI summary
An interleaved multi-view video stream is received. The interleaved multi-view video stream includes one or more first view frames, one or more second view frames, and blanking frames in a sequential pattern. The blanking frames separate the first view frames from the second view frames in the sequential pattern. The interleaved multi-view video stream is displayed in the sequential pattern. In one embodiment, the blanking frames are detected, and operation of a viewing device is synchronized based at least in part on the blanking frames being detected.