Focus Frame Positioning in Enlarged Image Displays
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Solution Overview
Problem
Users face difficulty in maintaining the positional relationship of an enlargement area with respect to the whole angle of view when moving a focus detection area in digital cameras, as existing techniques complicate the understanding of the area's position within the full angle of view, requiring complex operations to confirm and adjust.
Innovation Solution
A display control apparatus and method that allows the focus frame to be moved on the screen while maintaining the enlargement area's positional relationship with the whole captured image, by displaying the focus frame's position over the focus detection area and switching to the full image view when the frame reaches the screen's end, thereby preserving user understanding of the area's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the focus frame is moved on the screen while enlargement display is active, then the user can adjust the focus detection area position, but the positional relationship of the enlargement area with respect to the whole angle of view becomes unclear
Solution Approach 1:
A positional relationship indicator (mini-map or guide overlay) is introduced as an intermediary element that visually connects the enlargement area to the whole angle of view. This indicator maintains the positional relationship information while allowing the focus frame to move freely on the screen, resolving the contradiction between ease of operation and information retention.
Solution Approach 2:
The display is divided into multiple dimensional layers: the main screen shows the enlargement area with the movable focus frame, while a separate positional relationship indicator (often in the corner or as an overlay) displays the correspondence to the whole angle of view. This dimensional separation allows both functions to coexist without interference.
2Adaptability or versatility
If the focus frame moves to the end of the screen, then the focus detection area reaches the boundary of the enlargement area, but the user loses visual confirmation of the area's position within the full image
Solution Approach 1:
The positional relationship indicator serves as a continuous mediator that remains visible even when the focus frame reaches the screen boundaries. This indicator provides ongoing visual confirmation of the enlargement area's position within the full image, preventing information loss while allowing complete boundary exploration.
Solution Approach 2:
The positional relationship indicator provides continuous feedback about the enlargement area's position within the full image, regardless of where the focus frame is located on the screen. This feedback mechanism ensures the user always has visual confirmation of the area's position, even at boundary conditions.
Data Source
AI summary
An enlargement area of an image including a focus detection area is enlarged and displayed, and a focus frame is displayed on a display screen over a location corresponding to a position of the focus detection area included in the enlargement area. The focus frame moves on the display screen in accordance with an instruction received via an input unit. When the focus frame moves to a display end, enlargement display is temporarily canceled in order to display the whole image on the display screen, and the focus frame is displayed on the display screen over a location corresponding to a current position of the focus detection area in the whole image.