Imaging Apparatus Adjustable Thinning Rates for Small-Angle Video
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Solution Overview
Problem
Existing imaging apparatuses struggle to produce high-quality videos with a small angle of view in real-time, as they often rely on digital processing that degrades image quality and resolution when reducing the angle of view.
Innovation Solution
An imaging apparatus with a control unit that employs a first and second mode for video recording, utilizing thinning-out drives with adjustable thinning-out rates to process videos with varying angles of view, adjusting input and output resolutions, and incorporating an imaging lens with a zoom function for optimal image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If digital processing is used to cut a part of the angle of view, then a video with a small angle of view can be obtained, but image quality and resolution are degraded
Solution Approach 1:
The patent applies dynamics by making the thinning-out rate adjustable based on the angle of view. The control unit dynamically changes the thinning-out rate according to the selected angle of view, allowing the system to adapt to different imaging conditions while maintaining optimal image quality for each mode.
Solution Approach 2:
The patent changes the parameter of pixel readout density (thinning-out rate) to resolve the contradiction. By adjusting the thinning-out rate parameter according to the angle of view, the system maintains high image quality for wide-angle shots while enabling small angle of view functionality when needed.
2Productivity
If thinning-out drive is applied to reduce pixel readout, then processing speed increases, but resolution decreases
Solution Approach 1:
The thinning-out rate is made dynamic rather than fixed. The control unit adjusts the thinning-out rate based on the angle of view mode, enabling the system to optimize between processing speed and resolution depending on the specific imaging requirements.
Solution Approach 2:
Different thinning-out rates are applied locally to different angle of view modes. Wide-angle mode uses one thinning-out rate while small angle of view mode uses a different rate, allowing each mode to have optimized quality appropriate to its specific use case.
3Device complexity
If a fixed thinning-out rate is used for all angle of views, then device complexity is reduced, but image quality cannot be optimized for different angles
Solution Approach 1:
The system uses dynamic control where the thinning-out rate automatically changes based on the angle of view mode. This provides optimized image quality for different angles while keeping the control mechanism relatively simple, as the control unit automatically selects the appropriate rate based on the current mode.
Data Source
AI summary
An imaging apparatus has an imaging element that captures an optical image with a first angle of view, and a control unit that has a first mode and a second mode as a video imaging mode and records video data of a video based on the optical image. The control unit executes thinning-out drive to thin out a part of readout of the plurality of pixels in the first mode and the second mode, sets a second thinning-out rate in the thinning-out drive of the second mode to be lower than a first thinning-out rate of the thinning-out drive of the first mode, and changes the second angle of view of the recording region following movement of a subject in the recording region in the second mode, and changes the second thinning-out rate of the recording region with change in the second angle of view in the second mode.