Image Reproducing Apparatus Shake Correction and Motion Blur Control
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Solution Overview
Problem
Generating still images from moving images often results in image shake issues, leading to visual degradation and ghosting effects when the images are reproduced as moving images, as existing techniques fail to effectively control image shake and motion blur.
Innovation Solution
An imaging apparatus equipped with a reproduction unit that corrects image shake using a first image shake correction unit and adds motion blur based on interframe motion, allowing for seamless transition between still and moving image reproduction modes by adjusting shake information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If image shake correction is applied to each frame when generating still images from moving images, then image shake is corrected in still images, but motion continuity is disrupted and ghosting occurs when reproduced as moving images
Solution Approach 1:
The patent segments the image processing into two distinct paths: one for still image generation that applies shake correction to individual frames, and another for moving image reproduction that preserves original motion characteristics. This segmentation allows each output type to receive optimized processing without interfering with the other.
Solution Approach 2:
The patent changes the processing parameters dynamically based on the intended output type. When generating still images, shake correction parameters are applied to eliminate blur. When reproducing moving images, the original uncorrected frames are used to maintain natural motion blur and continuity, thus adapting parameters to the specific application.
2Stability of the object's composition
If motion blur is left in the exposure period for natural moving image appearance, then motion continuity is maintained, but still images exhibit image shake and visual degradation
Solution Approach 1:
The patent implements dynamic processing where the same captured sequence is processed differently based on the desired output. The system dynamically adjusts between preserving motion blur for video output and applying shake correction for still image output, making the processing adaptive to the application requirements.
Solution Approach 2:
The patent performs preliminary capture of high-quality sequences with sufficient resolution and proper exposure settings that can serve both still image and moving image purposes. This preliminary action ensures that the source material contains enough information quality to support both processing paths effectively.
3Quantity of substance
If high definition moving images are captured with sufficient pixels per frame, then still image quality should be adequate, but image shake and ghosting degrade the actual still image output quality
Solution Approach 1:
The patent extracts the shake correction information separately from the image data itself. By detecting shake parameters independently and then applying correction only to still image outputs, the system takes out the problematic motion artifacts from the final still image product while preserving them in the moving image sequence where they contribute to natural appearance.
Data Source
AI summary
There is provided an imaging apparatus capable of easily generating favorable still image data based on a moving image. The imaging apparatus is capable of capturing and recording a moving image, and capable of generating a still image based on the recorded moving image. During moving image capturing, the imaging apparatus corrects an image shake in an exposure period and records interframe shake information as metadata. When generating moving image data as a moving image, the imaging apparatus adds thereto a motion blur according to the shake information recorded as metadata. When generating moving image data as a still image, the imaging apparatus generates a still image without adding a motion blur thereto.