Image Playback Sharpness Control via Variable Valid Time
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Solution Overview
Problem
Conventional image recording and playback apparatuses cannot adjust image sharpness or resolution during playback, leading to blurred images, especially in situations like sporting events where desired scenes may be unclear.
Innovation Solution
The apparatuses include units for setting read time, image valid time, and playback rate, allowing for the recording and playback of image data with adjustable sharpness by composing image data based on set parameters, enabling users to change the sharpness and resolution during playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If image data is captured and played back using conventional methods, then the playback can be performed, but the image sharpness cannot be adjusted or changed after capture
Solution Approach 1:
The patent applies dynamics by making the image valid time adjustable during playback. The system allows dynamic modification of the image valid time parameter, enabling users to change sharpness settings after capture. This transforms a static capture process into a dynamic, adjustable playback process where image quality parameters can be modified in real-time.
Solution Approach 2:
The patent implements parameter changes by modifying the image valid time parameter during playback. The system changes this temporal parameter to adjust the effective capture duration, thereby controlling sharpness. By varying this parameter, the system achieves different sharpness levels without requiring re-capture, resolving the contradiction between adaptability and complexity.
2Manufacturing precision
If the image valid time is extended to capture more frames, then the playback sharpness improves, but the playback rate decreases
Solution Approach 1:
The system applies dynamics by allowing independent adjustment of image valid time and playback rate. Users can dynamically modify the image valid time to control sharpness while maintaining the desired playback rate. This dynamic control enables optimization of both sharpness and playback speed without fixed trade-offs.
Solution Approach 2:
The patent segments the capture and playback processes into independent controllable parameters. By separating the image valid time (affecting sharpness) from the playback rate, the system allows independent optimization of each parameter. This segmentation resolves the contradiction by enabling simultaneous control of both sharpness and playback speed through independent parameter adjustment.
Data Source
AI summary
An image recording playback apparatus which, when recording moving image data, performs image capture at high-speed read time Dt, records all the captured images, and records a playback rate Ft (Vt), the read time Dt and image valid time St, with the image data, on a recording medium. Then upon playback of moving image data, the image recording playback apparatus plays back the recorded image data within the image valid time St in accordance with the playback rate. The image recording playback apparatus having this configuration can perform playback intended by a user. Further, when sharpness is to be changed, a playback image with different sharpness can be obtained by changing the image valid time St upon playback.