Interpolation Frame Production for Complex Motion
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Solution Overview
Problem
Conventional frame rate conversion techniques struggle to produce high-precision interpolation frames for complex motion in images with multiple moving objects, leading to 'collapse' of pictures, where the resulting frames have low correlation with the original motion, causing noticeable deterioration in picture quality.
Innovation Solution
The approach involves producing at least one interpolation frame without relying on motion vectors, especially during frame rate conversion processes where multiple interpolation frames are inserted between original frames, ensuring that these frames do not depend on the motion of the picture, thereby reducing the occurrence of 'collapse' of pictures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If interpolation frames are produced using motion vectors to improve frame rate conversion quality, then moving picture display performance is improved, but erroneous motion vector detections occur in complex motion scenarios causing picture collapse
Solution Approach 1:
The patent segments the interpolation frame production process into two distinct paths: one for simple motion scenarios using motion vectors, and another for complex motion scenarios using alternative methods that do not rely on motion vectors. This segmentation allows the system to select the appropriate method based on the specific characteristics of the input image, thereby avoiding erroneous motion vector detections in complex motion scenarios while maintaining high precision in simpler scenarios.
Solution Approach 2:
The patent changes the parameter of interpolation frame production methodology based on the complexity of motion detected in the image. When complex motion is detected, the system switches from using motion vectors to an alternative interpolation method that does not depend on motion vector accuracy. This parameter change allows the system to adapt to different motion conditions and maintain reliable interpolation frame production across various scenarios.
2Productivity
If multiple interpolation frames are continuously inserted between original frames to increase frame rate, then temporal resolution is improved, but the occurrence of picture collapse increases when motion is complex
Solution Approach 1:
The patent makes the interpolation frame production method dynamic by adjusting the approach based on the motion characteristics detected in each frame. When complex motion is detected, the system dynamically switches to an interpolation method that does not rely on motion vectors, thereby preventing picture collapse. This dynamic adjustment allows the system to maintain high frame rate while ensuring picture quality consistency across different motion conditions.
3Manufacturing precision
If motion vector-based interpolation is used to produce high-quality frames, then moving picture quality is improved, but the system becomes vulnerable to complex motion patterns with multiple intersecting objects
Solution Approach 1:
The patent creates a universal interpolation frame production system that can handle both simple and complex motion patterns by implementing multiple interpolation methods. The system uses motion vector-based interpolation for simple motion scenarios and alternative interpolation methods for complex motion scenarios, thereby achieving high interpolation frame quality across a wide range of motion conditions and improving the system's adaptability to various motion patterns.
Data Source
AI summary
A picture signal processing apparatus includes a motion vector detecting unit for detecting information as to a motion vector of a picture from frames contained in an input picture signal; an interpolation frame producing unit for producing an interpolation frame by employing the motion vector; and a frame stream producing unit for producing a picture signal of a new frame stream by combining the interpolation frame produced with the frames of the input picture signal so as to output the produced picture signal of the new frame stream. When the picture signal processing apparatus performs a converting operation in such a manner that interpolation frames are continued between two frames of the input picture signal, at least one interpolation frame among the interpolation frames is formed as such an interpolation frame formed without employing the motion vector (namely, not depending upon motion of picture).