Interpolation Frame Generation Device for Video Signal Quality
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Solution Overview
Problem
Existing interpolation frame generation devices generate inappropriate interpolation pixels when motion vectors are erroneously detected, leading to visual discomfort, and adjusting the ratio of dynamic to static interpolation pixels to improve smoothness often compromises image motion quality.
Innovation Solution
An interpolation frame generation device that includes a motion vector detector, pixel selectors, mixing ratio generators, and an adjuster to dynamically mix interpolation pixels based on reliability data, ensuring a higher ratio of static interpolation pixels when the motion vector is unreliable, thereby reducing visual discomfort without losing image smoothness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the ratio of interpolation pixels of dynamic interpolation is increased to smooth image motion, then motion smoothness is improved, but visual discomfort increases when motion vector is erroneously detected
Solution Approach 1:
The patent applies dynamics by making the mixing ratio between dynamic and static interpolation pixels variable rather than fixed. The mixing ratio is dynamically adjusted based on the reliability of the motion vector, allowing the system to adapt to different conditions. When motion vector reliability is high, dynamic interpolation dominates for smooth motion; when reliability is low, static interpolation increases to prevent visual discomfort.
Solution Approach 2:
The patent changes the parameter of mixing ratio based on motion vector reliability. By monitoring the reliability parameter and adjusting the mixing ratio accordingly, the system optimizes the balance between motion smoothness and visual comfort. This parameter change allows the interpolation pixels to adapt to the quality of motion detection in different scenarios.
2Reliability
If the ratio of interpolation pixels of static interpolation is increased to reduce visual discomfort, then visual comfort reliability is improved, but motion smoothness is lost
Solution Approach 1:
The system dynamically adjusts the mixing ratio based on motion vector reliability. When reliability is low, static interpolation ratio increases to prevent visual discomfort; when reliability is high, dynamic interpolation ratio increases to maintain motion smoothness. This dynamic adjustment resolves the contradiction by making the ratio adaptive rather than fixed.
Solution Approach 2:
The mixing ratio parameter is changed based on the reliability assessment. The system monitors reliability and adjusts the proportion of static versus dynamic interpolation pixels accordingly, optimizing visual comfort while preserving motion smoothness when conditions permit.
3Stability of the object's composition
If mixing ratio is fixed to prioritize motion smoothness, then image motion quality is improved, but visual discomfort increases when motion vector is erroneous
Solution Approach 1:
The patent implements feedback by monitoring the reliability of motion vectors and using this information to adjust the mixing ratio. The system continuously evaluates motion vector quality and feeds this information back to the mixing ratio generator, which then adjusts the proportion of dynamic and static interpolation pixels to prevent visual discomfort while maintaining motion smoothness.
Solution Approach 2:
The mixing ratio is made dynamic and adaptive rather than fixed. The system responds to changing conditions by adjusting the ratio based on real-time reliability assessment, allowing it to prioritize motion smoothness when reliable and prevent visual discomfort when motion vectors are erroneous.
4Reliability
If mixing ratio is fixed to prioritize visual comfort, then visual discomfort is reduced, but motion smoothness is compromised
Solution Approach 1:
The system uses dynamic adjustment of the mixing ratio based on motion vector reliability. Rather than fixing the ratio to prioritize visual comfort, the system adapts the ratio in real-time, increasing static interpolation when reliability is low to prevent discomfort, and increasing dynamic interpolation when reliability is high to maintain smoothness.
Solution Approach 2:
The mixing ratio parameter is changed dynamically based on reliability conditions. The system monitors motion vector quality and adjusts the proportion of static versus dynamic interpolation pixels, optimizing visual comfort when needed and motion smoothness when possible.
Data Source
AI summary
A motion vector detector detects a motion vector, and generates reliability data of the motion vector. Pixel selectors select pixels for dynamic interpolation and pixels for static interpolation. The mixing ratio generator generates a first mixing ratio of interpolation pixels of the dynamic interpolation and interpolation pixels of the static interpolation based on the reliability data. A mixing ratio generator generates a second mixing ratio based on a difference value between the pixels for the dynamic interpolation. A mixing ratio adjuster adjusts the mixing ratio so that the mixing ratio of the interpolation pixels of the static interpolation becomes larger to generate a third mixing ratio. An interpolation data generator mixes the interpolation pixels of the dynamic interpolation and the static interpolation with each other in response to the third mixing ratio.