Remote AF Frame Control via Optical Finder Image Capture
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Solution Overview
Problem
Existing remote imaging systems lack the ability to perform autofocus (AF) operations efficiently during optical finder shooting, especially when capturing images of subjects with large motions, as they typically require manual operation and are inferior to live view shooting in terms of AF speed.
Innovation Solution
A control apparatus that receives and displays images from an image capture device's optical finder, allowing users to select and transmit AF frame settings remotely, enabling remote AF frame control while viewing through the optical finder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If remote imaging system uses optical finder shooting for capturing images, then the AF speed and operation performance are improved, but the ability to perform remote AF operations is lost requiring manual operation only
Solution Approach 1:
The patent uses an auxiliary camera to capture images of the optical finder display, creating a visual copy of the finder content. This copied image is then transmitted to the remote control apparatus, enabling the user to see and operate AF frames remotely as if directly viewing the optical finder, thus resolving the contradiction between maintaining optical finder shooting benefits and enabling remote operation capability
Solution Approach 2:
The auxiliary camera acts as an intermediary device between the optical finder and the remote control apparatus. It captures the finder display and transmits it to the control apparatus, mediating the interaction and enabling remote users to perform AF operations on optical finder shooting without being physically present at the camera
2Measurement precision
If remote control apparatus displays full-resolution captured images, then the image quality and detail for AF frame selection are improved, but the data transmission bandwidth and processing requirements increase
Solution Approach 1:
The patent applies partial action by transmitting only the necessary portion of image data for AF frame selection. The control apparatus processes and displays captured images with sufficient resolution for AF operations without transmitting the complete full-resolution data set, achieving the needed precision while reducing overall data transmission volume
Solution Approach 2:
The system dynamically adjusts image processing parameters based on operational needs. During AF frame selection, the control apparatus processes images to provide adequate detail for accurate frame placement while optimizing transmission parameters to reduce data volume, balancing precision requirements with bandwidth constraints
Data Source
AI summary
A control apparatus includes a receiving unit that receives a captured image obtained by capturing an image in an optical finder of an image capture device in a state in which AF frames are displayed on the optical finder, a display unit that displays the captured image and a UI (user interface) for selecting at least one AF frame from AF frames displayed on the captured image, and a transmitting unit that transmits, to the image capture device, information for specifying the at least one AF frame selected via the UI.