Display Frame Prediction for Skipped-Frame Judder Reduction
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Solution Overview
Problem
Conventional display apparatuses inefficiently handle frame skipping, leading to inefficient use of frame buffer space and reduced system responsiveness due to compensating for skipped frames based on preceding and following frames.
Innovation Solution
A display apparatus that includes a frame buffer and a processor to identify skipped frames and generate predicted frames based on motion information, replacing the skipped frames to reduce motion judder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional display apparatuses compensate for skipped frames based on preceding and following frames, then frame skipping can be resolved, but frame buffer space is inefficiently used and system responsiveness is reduced
Solution Approach 1:
The patent applies preliminary action by predicting the content of skipped frames in advance based on motion information from preceding frames. The processor generates predicted frames before the actual skipped frames are needed, allowing the system to maintain responsiveness while compensating for frame skips. This is achieved by using motion vectors and frame prediction algorithms to proactively generate missing frame data rather than reactively searching for preceding and following frames after the skip occurs.
2Reliability
If conventional display apparatuses compensate for skipped frames based on preceding and following frames, then frame skipping can be resolved, but frame buffer space is inefficiently used
Solution Approach 1:
The patent applies the extraction principle by removing the need to store multiple preceding and following frames in the frame buffer. Instead of keeping a large buffer of actual frames for compensation, the system extracts only the necessary motion information (motion vectors) from preceding frames and uses these to generate predicted frames on-demand. This significantly reduces the quantity of frame data that needs to be stored in the frame buffer while maintaining effective frame skipping compensation.
3Reliability
If conventional display apparatuses compensate for skipped frames, then frame skipping can be resolved, but the method is complex and less efficient
Solution Approach 1:
The patent applies parameter changes by transforming the frame compensation approach from using actual frame data to using motion information parameters. Instead of manipulating multiple complete frames in the buffer, the system works with motion vectors and prediction parameters derived from preceding frames. This parameter-based approach simplifies the overall system complexity while maintaining reliable frame skipping compensation, as it reduces the computational burden and memory requirements associated with handling multiple actual frames.
Data Source
AI summary
A display apparatus may include a frame buffer configured to sequentially receive a plurality of image frames, and a processor configured to receive the plurality of image frames from the frame buffer and identify whether a skipped frame has been generated based on the plurality of image frames, based on generation of the skipped frame, generate a predicted frame based on a preceding frame of the skipped frame among the plurality of image frames and motion information of the preceding frame, and control a display to output the predicted frame replacing the skipped frame.