Image Correction System Synchronizing Timing Signals
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Solution Overview
Problem
Existing image correction systems fail to accurately cancel hand-shake during the capture of multiple frame images due to independent data acquisition and storage of angular velocity data, leading to delays and inaccuracies in aligning objects within the picture frame.
Innovation Solution
An image correction system that includes an image capturer, a storage unit for image data, a timing signal generator, a detector for movement data, and a correction processor that aligns image data based on movement data associated with timing signals, allowing for accurate hand-shake correction by filtering out panning movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If angular velocity data is stored in memory independently of image data acquisition, then the system structure is simplified, but the timing synchronization between image data and movement data deteriorates
Solution Approach 1:
The patent combines the storage of image data and movement data into a unified memory structure with synchronized timing. The image processing apparatus stores both types of data in the same memory with associated timing information, eliminating the timing offset that occurs when using separate storage systems. This merging approach maintains data association while simplifying the overall system architecture.
2Productivity
If frame images are captured at a predetermined frame rate from buffer to memory, then the image processing efficiency is improved, but the delay between capturing timing and storing timing increases
Solution Approach 1:
The patent applies preliminary action by pre-associating timing information with both image data and movement data before processing. The timing information is embedded in the data structures during the buffering stage, so that when data is transferred to memory, the timing association is already established. This eliminates the need for complex timing synchronization during later processing stages.
3Measurement precision
If angular velocity data is integrated to compute hand-shake correction amounts, then the hand-shake correction accuracy is improved, but the panning movement interference increases
Solution Approach 1:
The patent segments the movement data processing by separating hand-shake correction calculations from panning movement compensation. The system computes correction amounts for high-frequency hand-shake movements while excluding or separately handling low-frequency panning movements. This segmentation allows accurate hand-shake correction without the harmful effect of panning movement interference.
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 system effectively cancels hand-shake by aligning objects within the frame, improving the accuracy of image correction processing and reducing the workload by only correcting shifts above a predetermined threshold.
Implementation Method 1
angular velocities detected by a gyro sensor
Data Source
AI summary
An image correction system includes an image capturer, operable to capture an object image and to generate image data based on the object image, a first storage, adapted to store the image data, a timing signal generator, operable to periodically generate timing signals, an image processor, operable to periodically store the image data into the first storage in accordance with each of the timing signals, a detector, operable to periodically detect movement of the image capturer and to generate movement data based on the detected movement, and a second storage, adapted to periodically store the movement data in association with timing data based on each of the timing signals.