Focus Guide Movable Range Indicator for Enlarged Image Display
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Solution Overview
Problem
Existing image pickup apparatuses face challenges in focus adjustment, particularly when trying to move a focus guide beyond a certain range where phase difference detection pixels are absent, leading to unclear reasons for the guide's immobility, especially when an enlarged image is displayed.
Innovation Solution
A digital camera system with a focus guide function and image enlargement display, where a moving unit, display control unit, and control unit work together to move the focus detection position based on user operations, display the focus detection position, and indicate a predetermined range within the image, even when the image is enlarged, by displaying a focus guide movable range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the focus guide is disabled from moving to positions where defocus amount cannot be calculated, then the system maintains operational reliability, but the user cannot understand why the display item cannot be moved, especially when an enlarged portion of the image is displayed
Solution Approach 1:
The patent introduces an indicator as an intermediary element that visually represents the movable range of the focus guide. This indicator acts as a mediator between the system's operational constraints (where defocus calculation is possible) and the user's understanding, providing clear visual feedback about why the focus guide cannot be moved to certain positions without compromising detection reliability
Solution Approach 2:
The patent employs visual display changes (including color and graphical representation) to indicate the movable range and current position of the focus guide. By changing the display mode and visual properties of the indicator, the system provides intuitive feedback to users about the focus guide's mobility constraints, improving ease of operation while maintaining reliability
2Ease of operation
If the focus guide movable range indicator is displayed together with the enlarged image, then the user can understand the guide's position and range clearly, but the display complexity increases
Solution Approach 1:
The patent merges the display of the focus guide movable range indicator with the enlarged image display by overlaying them in the same display area. This combining approach allows the system to provide comprehensive information (both the enlarged image details and the guide's movable range) without requiring separate display areas, thus managing display complexity while improving user understanding
Data Source
AI summary
An apparatus includes a moving unit configured to move a focus detection position based on a user operation, within a predetermined range of an image, a display control unit configured to perform display control for displaying an enlarged portion of the image, and a control unit configured to perform control for displaying a display item that indicates the focus detection position and an indicator that indicates the predetermined range, together with the enlarged portion of the image, in a specific state including a state where the enlarged portion of the image is displayed.