Imaging Device Control for Autofocus Target Switching
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Solution Overview
Problem
Existing image capture apparatuses require multiple operation steps to switch between functions, leading to delayed focusing and missed shooting opportunities, and existing autofocus systems may not align with user intent.
Innovation Solution
An image capture apparatus with a first operation unit for shooting instructions and a second operation unit for processing control, allowing multiple functions to be executed through sequential pressing operations, reducing the number of steps required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple functions are assigned to different operation members, then each function can be executed independently, but the number of operation steps increases and operational efficiency decreases
Solution Approach 1:
The patent applies multi-functionality by enabling a single operation member (shutter-release button) to execute multiple functions through different pressing operations. The control unit is configured to execute autofocus processing when the shutter-release button is pressed halfway, and execute switching between autofocus targets when pressed fully, thereby reducing the number of operation steps while maintaining versatility
Solution Approach 2:
The patent implements dynamics by making the function of the shutter-release button changeable based on the pressing operation. The control unit dynamically determines which function to execute (autofocus vs. autofocus target switching) based on whether the button is pressed halfway or fully, allowing the same physical operation member to adapt to different functional requirements
2Reliability
If the shutter-release button is fixed for still image shooting, then shooting function is maintained, but autofocus function cannot be executed through the same button
Solution Approach 1:
The patent resolves this contradiction by making the shutter-release button's function dynamic rather than fixed. The control unit is configured to execute autofocus processing when the button is pressed halfway, and execute switching between autofocus targets when pressed fully. This dynamic function assignment allows the same button to serve both shooting and autofocus functions while maintaining reliability for the primary shooting function
3Ease of operation
If autofocus target switching requires multiple operation members, then precise control is achieved, but focusing speed decreases and shooting opportunities are lost
Solution Approach 1:
The patent applies merging by combining the autofocus target switching function with the existing shutter-release button operation. Instead of requiring a separate operation member for autofocus target switching, the control unit uses the same shutter-release button (pressing fully) to execute both autofocus target switching and image shooting, thereby reducing the number of operations and eliminating focusing delays
Solution Approach 2:
The patent implements preliminary action by pre-configuring the control unit to automatically switch between autofocus targets based on the pressing operation of the shutter-release button. When the button is pressed fully, the control unit has already prepared to execute the switching function, eliminating the need for additional manual operations and reducing time loss
Data Source
Figure 1A~1B
Figure 2
Figure 3A
AI summary
An image capture apparatus comprises imaging means, processing means for performing predetermined processing for an object in an image captured by the imaging means, a first operation unit configured to issue a shooting instruction, a second operation unit different from the first operation unit, and control means for performing control to execute the predetermined processing for a first object in the image in accordance with a first pressing operation on the second operation unit and to switch a target of the predetermined processing in accordance with a second pressing operation following the first pressing operation on the second operation unit.