Camera Display Controller Manual Focus Mode Selection
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Solution Overview
Problem
Existing display technologies for focus adjustment in camera systems do not allow for appropriate manual focus adjustments while displaying the entire composition, as they either enlarge the live-view image or maintain the diaphragm in an open state, limiting the ability to check the focusing state accurately.
Innovation Solution
A display controller that receives manual focus operations and sets a display mode to either superimpose focus information on the live-view image without enlargement or enlarge the image, allowing for appropriate focus adjustment based on user settings, enabling manual focus assistance during image composition review.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the live-view image is displayed at an enlarged scale during manual focus adjustment, then the focusing state can be checked in detail, but the entire composition cannot be checked and the diaphragm value differs from the actual capturing condition
Solution Approach 1:
The display screen is segmented into multiple regions: a first region displaying the live-view image at normal scale for composition checking, and a second region displaying an enlarged image for detailed focus checking. This segmentation allows both composition and focus details to be viewed simultaneously without compromising either aspect.
2Adaptability or versatility
If the live-view image is enlarged according to zoom key operation, then the focus guide display is controlled, but there is no method to enlarge the live-view image according to manual focus operation
Solution Approach 1:
The display system dynamically adjusts the magnification of the live-view image based on manual focus operations. When the focus ring is rotated, the system automatically enlarges the image in a second region to help the user check the focusing state, making the display behavior adaptive to the user's focus adjustment actions.
3Ease of operation
If the diaphragm is maintained in an open state during manual focus adjustment, then the focus ring can be operated freely, but the focus is adjusted while viewing an image captured with a diaphragm value different from that used during actual capturing
Solution Approach 1:
The system uses an intermediary display mechanism that shows the diaphragm value actually used during capturing, even when the diaphragm is in an open state. This intermediary information allows the user to understand the relationship between the current focus adjustment and the actual capturing conditions, improving focusing accuracy.
Data Source
AI summary
A display controller including: a display control unit configured to, in response to a first case, perform control so that an image is displayed in a display mode among a plurality of display modes wherein the first case is a case where a receiving unit has received a manual focus operation in a first state in which a display item indicating information on focus is not superimposed or displayed on a live-view image captured by an imaging unit and the live-view image is displayed with a first magnification wherein the plurality of display modes include: a first display mode in which the display item is superimposed and displayed on the live-view image without enlarging the live-view image from the first magnification; and a second display mode in which the live-view image is displayed with a second magnification larger than the first magnification.