Dynamic Live View Display Range Adjustment for Peripheral Movement Detection
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Solution Overview
Problem
Imaging apparatuses with electronic view finders struggle to provide a sense of presence while allowing photographers to notice movement in the peripheral portion of the live view image, as the viewing angle is limited, leading to potential oversight of important objects or new subjects during pan or tilt operations.
Innovation Solution
An imaging apparatus comprising an imaging unit, a finder display unit, a movement vector detection unit, and a display range change unit that adjusts the display range of the live view image based on detected movement vectors, reducing the display area when peripheral movement exceeds that of the principal subject, and optionally changing the reduction rate based on operation speed or angle of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the viewing angle of the electronic view finder is expanded to provide a sense of presence, then the photographer can see more of the live view image, but the peripheral portion beyond the gazeable viewing angle is overlooked
Solution Approach 1:
The patent applies dynamics by making the display range of the live view image dynamically adjustable based on detected movement vectors. The system transitions from a static full-display mode to a dynamic restricted-mode when peripheral movement is detected, allowing the display area to adapt to the photographer's gaze limitations while maintaining awareness of peripheral subjects.
Solution Approach 2:
The patent implements feedback by detecting movement vectors in the peripheral portion of the live view image and using this information to control the display range. When peripheral movement exceeds a threshold, the system provides feedback by restricting the display range to guide the photographer's attention to the moving peripheral subject, thus preventing information loss.
2Loss of information
If the viewing angle is limited to match human gaze capability, then peripheral movement can be noticed, but the sense of presence in the live view image is reduced
Solution Approach 1:
The system dynamically adjusts the display range based on detected peripheral movement vectors. When no significant peripheral movement is detected, the full display area is maintained to preserve the sense of presence. When peripheral movement is detected, the display range is dynamically restricted to highlight the moving subject, thus balancing information detection with sense of presence.
Solution Approach 2:
The patent changes the display range parameter based on the magnitude of movement vectors detected in the peripheral portion. By adjusting this parameter in response to peripheral activity, the system maintains the sense of presence during normal viewing while enabling peripheral movement detection when necessary.
3Loss of information
If the display range is restricted to highlight peripheral movement, then peripheral subjects are noticed, but the sense of presence and overall view are reduced
Solution Approach 1:
The system periodically detects movement vectors in the peripheral portion and alternates between full-display mode and restricted-display mode based on detected activity. This periodic monitoring and mode switching allows the photographer to maintain a sense of presence during normal viewing while periodically receiving guidance to peripheral subjects when movement is detected.
Solution Approach 2:
The display range is dynamically adjusted based on the magnitude of peripheral movement vectors. The system transitions between different display states (full view vs. restricted view) based on real-time movement detection, allowing the photographer to maintain ease of operation and sense of presence while still detecting peripheral subjects when necessary.
Data Source
AI summary
A finder display unit displays a live view image based on a captured image generated by an imaging unit. A digital signal processing unit detects a movement vector between frames in the live view image for a predetermined portion in the captured image. A digital signal processing unit changes a display range of the live view image on the finder display unit based on the detected movement vector of a peripheral portion in the captured image.