Imaging Apparatus Shutter Speed Preview via Dynamic Frame Rate
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Solution Overview
Problem
Existing imaging apparatuses, such as digital cameras, do not allow users to effectively preview and confirm the impact of settings like shutter speed and aperture value on the final image before taking a picture, limiting the user's ability to adjust and visualize other shooting conditions beyond brightness.
Innovation Solution
An imaging apparatus with a display unit that shows a moving image based on image data generated by the imaging unit, a setting unit for user input, a shutter for adjusting exposure time, and a controller that determines and applies the shutter speed, allowing the frame rate of the displayed image to be adjusted according to the set shutter speed, enabling users to preview the image with adjusted conditions before capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the camera displays only brightness correction in the viewfinder, then the user can confirm picture brightness before taking, but the user cannot confirm other shooting conditions like shutter speed and aperture
Solution Approach 1:
The camera performs preliminary exposure calculation and simulation before actual picture capture. The controller calculates exposure parameters (shutter speed, aperture, ISO) in advance and simulates the final image appearance based on these parameters, allowing users to confirm shooting conditions before taking the picture.
Solution Approach 2:
The camera creates a simulated copy of the final image appearance in the viewfinder based on calculated exposure parameters. This virtual copy shows users how the actual picture will look with the selected shooting conditions, including brightness, motion freeze effect, and depth of field, without requiring complex real-time rendering of all parameters.
2Adaptability or versatility
If the camera allows confirmation of only brightness, then the display system remains simple, but the user's ability to preview and adjust other settings like shutter speed is limited
Solution Approach 1:
The camera calculates exposure parameters and simulates image appearance in advance before capture, allowing users to preview the effect of different shutter speeds, apertures, and ISO settings on the final image.
Solution Approach 2:
The viewfinder displays a simulated copy of the final image that reflects the impact of selected shooting conditions, enabling users to understand how shutter speed affects motion capture and how aperture affects depth of field without complex real-time adjustments.
3Loss of information
If the camera uses fixed frame rate display, then the display control is simple, but the user cannot visually confirm the effect of different shutter speeds on motion capture
Solution Approach 1:
The camera dynamically adjusts the display frame rate in the viewfinder based on the selected shutter speed setting. When a fast shutter speed is selected, the display frame rate increases to show motion freeze effect; when a slow shutter speed is selected, the display frame rate decreases to show motion blur effect, allowing users to visually confirm the motion capture effect of different shutter speeds.
Solution Approach 2:
The controller changes the display frame rate parameter according to the selected shutter speed setting. This parameter change allows the viewfinder to visually represent how different shutter speeds affect motion capture, with higher frame rates showing frozen motion and lower frame rates showing blurred motion.
Data Source
AI summary
An imaging apparatus includes an imaging unit; a display unit capable of displaying a moving image based on the image data generated by the imaging unit; a setting unit that receives setting of a user; a shutter operable to adjust an exposure time of the imaging unit according to a shutter speed; a determination unit operable to determine the shutter speed according to setting related to exposure set by user through the setting unit; and a controller operable to control the imaging unit and the display unit. The controller controls the imaging unit to be exposed for an exposure time corresponding to the shutter speed determined by the determination unit, and changes a frame rate of displaying the moving image on the display unit according to the determined shutter speed.