Image Pickup Apparatus Display Control for Object Tracking
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Solution Overview
Problem
Existing image pickup apparatuses face challenges in efficiently managing display delays during continuous image-capturing, particularly in maintaining stable framing of objects with large or irregular movements, while minimizing user-perceived strangeness due to differing display timings of live view and still images.
Innovation Solution
The apparatus switches between two display modes: display delay reduction mode, which minimizes display delay by displaying live view and still images quickly, and display delay adjustment mode, which equalizes display delays to reduce user discomfort, based on object tracking, angular velocity, or motion vector data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If display delay reduction mode is used to quickly display live view and still images, then display speed is improved, but framing stability deteriorates during large or irregular object movements
Solution Approach 1:
The patent applies dynamics by making the display mode switchable between two states (display delay reduction mode and display delay adjustment mode) based on object movement conditions. The system dynamically adjusts display behavior according to real-time movement detection, optimizing between speed and stability depending on the situation.
Solution Approach 2:
The patent changes the display delay parameter based on object movement characteristics. When large or irregular movements are detected, the system switches to display delay adjustment mode which equalizes delays between live view and still images, thereby maintaining framing stability while still providing continuous image capturing functionality.
2Stability of the object's composition
If display delay adjustment mode is used to equalize display delays, then framing stability is improved, but display speed deteriorates
Solution Approach 1:
The system dynamically selects between display modes based on detected object movement. When movements are small or regular, display delay reduction mode is used for speed. When large or irregular movements are detected, display delay adjustment mode is activated to prioritize framing stability, thus adaptively balancing both requirements.
Solution Approach 2:
The display delay parameter is adjusted based on movement conditions. The system changes from fixed delay adjustment to conditional delay adjustment, where the delay equalization is applied selectively only when object movement patterns indicate potential framing instability, thereby minimizing the impact on overall display speed.
3Speed
If live view image display period is reduced to follow moving objects, then object tracking capability is improved, but user discomfort increases due to frequent switching
Solution Approach 1:
The patent employs feedback mechanisms by detecting object movement characteristics and using this information to control display mode switching. The system continuously monitors movement patterns and adjusts display behavior accordingly, providing feedback-based optimization of both tracking performance and user comfort.
Solution Approach 2:
The system changes display parameters (display mode, delay adjustment) based on detected movement patterns. By analyzing motion vectors and angular velocity, the system intelligently adjusts the live view display period and delay settings to balance tracking responsiveness with display stability, reducing user discomfort from excessive switching.
Data Source
AI summary
A display control unit is provided to set a first display mode and a second display mode each for consecutively displaying a first display image and a second display image of a type different from the first display image at a display unit, while switching between the first display image and the second display image, in continuous image-capturing. A time from when the first display image is displayed until when the second display image is displayed next is shorter in the first display mode as compared to the second display mode. The display control unit performs switching between the first display mode and the second display mode, based on information about a movement of an object in the continuous image-capturing.