Camera Shake Correction via Image Data Reduction
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Solution Overview
Problem
Conventional imaging devices do not allow users to quickly view corrected images after camera shake correction, leading to poor user operability and increased processing time due to the need to store and process multiple images, which results in a lengthy display of corrected image data.
Innovation Solution
An imaging apparatus with a camera shake detection system that reduces image data size, applies camera shake correction to the reduced data for immediate display, and stores the original data with camera shake state metadata for later correction, allowing for quick image confirmation and reduced processing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If camera shake correction is applied to original full-resolution image data, then correction accuracy is improved, but processing time increases and user cannot quickly view corrected images
Solution Approach 1:
The patent divides the image data into two segments: thumbnail data (reduced resolution) and original data (full resolution). Camera shake correction is applied separately to each segment, allowing the thumbnail to be processed quickly for immediate display while the original data is processed in the background with higher accuracy requirements.
Solution Approach 2:
The patent applies partial correction action by first correcting the thumbnail data which contains essential visual information for judging camera shake, then applying correction to the original data. This partial approach allows quick feedback to the user while maintaining option for complete correction.
2Reliability
If multiple images are imaged and processed for camera shake correction, then correction reliability is improved, but storage amount and operation amount increase
Solution Approach 1:
The patent extracts only the essential correction information from multiple imaged frames by applying correction to the thumbnail data first. This extracted correction information is then sufficient for displaying corrected images quickly, eliminating the need to store and process all original high-resolution data simultaneously.
3Manufacturing precision
If camera shake correction processing is applied to all imaged data before display, then correction completeness is improved, but time until corrected image data is displayed lengthens
Solution Approach 1:
The patent performs preliminary camera shake correction on the thumbnail data before displaying the corrected image to the user. This preliminary action provides immediate feedback and allows the user to see corrected results quickly, while complete correction of the original data can be performed subsequently in the background.
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
Enables rapid display of corrected image data, shortens the interval between consecutive images, and decreases image processing time by performing camera shake correction on reduced data while displaying the original data, thus improving user operability and efficiency.
Implementation Method 1
a gyro sensor that detects angular velocity of the imaging part
Data Source
AI summary
An imaging apparatus includes an imaging part that images a subject to generate image data, an image storage part that temporarily stores original image data that was imaged by the imaging part, an image data size reducing part that forms image data for display by reducing the size of image data stored in the image storage part, and an image display part that displays image data for display that was formed by the image data size reducing part; the imaging apparatus further comprising a camera shake state detection part that detects a camera shake occurrence state of the imaging part, a camera shake decision part that decides whether or not camera shake occurred for image data for display that was reduced by the image data size reducing part based on a camera shake state that was detected by the camera shake state detection part, and a camera shake correction part that, when a result decided by the camera shake decision part is that a camera shake occurrence state exists, subjects the image data for display to camera shake correction and displays corrected image data for display on the image display part.