Reproducing Apparatus Shutter Speed Motion Smoothness
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Solution Overview
Problem
Existing moving image reproduction technologies experience unnaturalness in motion smoothness due to changes in exposure time during capturing, leading to inconsistent motion reproduction.
Innovation Solution
A reproducing apparatus that obtains and utilizes shutter speed information to smooth pixel data, employing a filtering process with a directional smoothing filter kernel based on the capturing conditions to maintain consistent motion smoothness across frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If shutter speed is changed to obtain correct exposure during capturing, then exposure correctness is improved, but motion smoothness deteriorates
Solution Approach 1:
The patent applies parameter changes by adjusting the smoothing strength parameter based on shutter speed information. When shutter speed changes between frames, the system dynamically modifies the smoothing parameter to compensate for exposure time variations, thereby maintaining motion smoothness while preserving exposure correctness.
Solution Approach 2:
The system implements feedback by using shutter speed information from captured frames to adjust the smoothing process during reproduction. The reproducing apparatus receives shutter speed data, compares it with reference values, and modifies smoothing parameters accordingly to maintain consistent motion appearance despite exposure changes.
2Adaptability or versatility
If exposure time varies across frames, then adaptability to lighting conditions is improved, but motion smoothness consistency deteriorates
Solution Approach 1:
The patent applies dynamics by making the smoothing parameter variable rather than fixed. The system dynamically adjusts smoothing strength based on the relationship between current frame shutter speed and reference shutter speed, allowing adaptive compensation for varying exposure conditions while maintaining motion consistency.
Solution Approach 2:
The system changes the smoothing parameter based on exposure time variations. By calculating the ratio of current shutter speed to reference shutter speed and using this to modulate smoothing strength, the system adapts to different lighting conditions while preserving motion smoothness consistency across frames with varying exposure times.
Data Source
AI summary
A reproducing apparatus to reproduce a captured moving image includes a filter circuit that obtains a capturing condition (shutter speed information “s”) of frames constituting the moving image. The filter circuit smoothes pixel information of the frames by using a parameter (directional smoothing filter kernel) according to the obtained shutter speed.