Provisional Subject Image for Self-Timer Composition Checking
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Solution Overview
Problem
In self-timer photography, photographers often fail to frame subjects correctly since they are out of the photographing range, leading to unsuccessful shots due to the inability to preview the composition with the subject present.
Innovation Solution
An imaging apparatus and method that displays a provisional subject image on a live view screen, allowing changes in camera position, direction, and magnification to be reflected in the display state of the image, enabling the photographer to adjust framing before taking the shot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the photographer is out of the photographing range during self-timer photography, then the photographer can operate the camera freely, but the photographer cannot check the composition in advance
Solution Approach 1:
The patent creates a provisional subject image that copies the appearance and position of the photographer based on pre-photographing data. This virtual copy is then superimposed on the live view screen, allowing the photographer to see where they will appear in the final photograph without physically being in the frame. This resolves the contradiction by providing composition information through a visual copy rather than requiring physical presence.
Solution Approach 2:
The patent introduces a provisional subject image as an intermediary element between the photographer and the actual photographing process. This intermediary visual representation mediates the composition checking function, allowing the photographer to evaluate framing and composition remotely while maintaining operational freedom. The intermediary bridges the gap between being out of range and needing composition information.
2Loss of information
If the photographer enters the photographing range to check composition, then the composition can be checked accurately, but the photographer interferes with the photographing process
Solution Approach 1:
Instead of requiring the photographer to physically enter the frame to check composition, the system creates a digital copy (provisional subject image) that represents the photographer's position and appearance. This copy is displayed on the live view screen, allowing accurate composition checking without the photographer's physical presence interfering with the photographing process or causing them to be captured unintentionally.
Solution Approach 2:
The patent performs pre-photographing to capture the photographer's image before the actual self-timer photographing occurs. This preliminary action creates the provisional subject image that can be used for composition checking. By doing the composition evaluation in advance using this pre-captured image, the system eliminates the need for the photographer to be in range during the critical photographing moment, thus preventing interference and ensuring photographing success.
3Adaptability or versatility
If the camera position or magnification is changed during self-timer photography, then the photographing flexibility is improved, but the composition checking becomes inaccurate
Solution Approach 1:
The patent makes the provisional subject image dynamic by updating its position and size on the live view screen in real-time according to camera position and magnification changes. When the camera moves or zooms, the system calculates the corresponding movement of the provisional subject image and repositions it accordingly. This dynamic adjustment maintains the accuracy of the composition preview despite camera parameter changes, allowing photographers to flexibly adjust settings while still having reliable composition information.
Solution Approach 2:
The system implements feedback by continuously monitoring camera position and magnification changes, then using this information to update the provisional subject image display. The feedback loop ensures that the virtual representation remains synchronized with the actual camera state, maintaining composition accuracy even as the photographer adjusts camera parameters for different shooting scenarios.
Data Source
AI summary
FIG. 2C depicts a live view screen when a movement is made in a direction of approaching the camera position at the time of pre-photographing (frontward direction) and also in the right direction in the drawing. When the camera position is changed, the display state of a provisional subject image in the live view screen is changed according to the change. In this case, the display size of the provisional subject image is changed according to the movement distance of the camera position in the frontward direction and the display position of the provisional subject image is changed in the left direction according to the movement distance in the right direction.