Variable Interpolation Rate Control for Natural Motion in Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing frame rate conversion methods for improving image quality in display devices, such as television receivers, fail to interpolate motion between original frames in a way that is suitable for viewing, leading to issues like judder and unnatural motion perception.
Innovation Solution
A display device and signal processing method that control the interpolation rate of interpolation frames based on motion between original frames, using a signal processing unit with an interpolation rate control unit to determine and adjust the interpolation rate according to detected motion vectors and shake amounts, ensuring the interpolation frames are generated in a manner that aligns with the motion direction and content type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed interpolation rate is used for all frames, then the processing is simple and fast, but the motion appears unnatural and causes judder
Solution Approach 1:
The patent applies dynamics by making the interpolation rate variable rather than fixed. The interpolation rate is dynamically adjusted based on the detected motion amount in each frame, allowing the system to adapt to different motion scenarios and produce natural-looking motion without excessive complexity.
Solution Approach 2:
The patent changes the parameter of interpolation rate from a constant value to a variable value that depends on motion amount. By modifying this parameter based on detected motion, the system achieves natural motion perception while maintaining processing efficiency through selective adjustment.
2Reliability
If the interpolation rate is increased to reduce judder, then motion smoothness improves, but processing complexity and computational load increase
Solution Approach 1:
The patent applies local quality by adjusting the interpolation rate selectively based on local motion characteristics in different frames. Instead of uniformly increasing the interpolation rate for all frames, the system identifies frames with specific motion patterns and applies higher interpolation rates only where needed, reducing overall processing complexity while maintaining motion smoothness.
Solution Approach 2:
The patent modifies the interpolation rate parameter dynamically based on motion detection results. By changing this parameter selectively rather than uniformly, the system achieves smooth motion perception without the full computational burden of high-rate interpolation for every frame.
3Manufacturing precision
If motion compensation is applied to all frames, then interpolation quality improves, but processing time and computational resources increase
Solution Approach 1:
The patent applies partial action by performing motion compensation selectively on frames where it is most beneficial, rather than uniformly applying it to all frames. The system identifies frames with motion characteristics that would benefit from compensation and applies the processing only to those frames, reducing overall processing time while maintaining interpolation quality where needed.
Solution Approach 2:
The patent applies local quality by providing different levels of interpolation processing to different frames based on their motion characteristics. Frames with significant motion receive full motion compensation processing, while frames with minimal motion receive simpler or no processing, optimizing the balance between quality and processing time.
Data Source
AI summary
The present technology relates to a display device, a signal processing device, and a signal processing method which make it possible to realize interpolation more suitable for viewing when interpolating motion between original images.Provided is a display device which includes a signal processing unit that, when an interpolation frame is generated for original frames along a time axis, the interpolation frame interpolating between the original frames, controls an interpolation rate of the interpolation frame depending on motion between the original frames in a certain direction. The present technology can be applied, for example, to a television receiver.