Digital Camera Live View Synchronization with Remote Shutter
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Solution Overview
Problem
Conventional digital camera systems that rely on touchscreen operations for controlling photographing parameters and image transfer lack efficient mechanisms to determine whether a recording instruction has been provided, leading to potential discrepancies between live view images and captured images.
Innovation Solution
The system incorporates an imaging apparatus with an imaging section, a control section for sequential image capturing, a display section for image display, and a judging section to determine if a recording instruction has been given, ensuring that either the displayed image or a captured image is recorded based on the instruction, using wireless communication between a remote control device and a digital camera for synchronized operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous live view display is performed to ensure accurate recording instruction detection, then recording accuracy is improved, but power consumption increases
Solution Approach 1:
The display control section controls the display section to display images at predetermined intervals rather than continuously, while the judging section determines recording instructions based on these periodically displayed images. This periodic display approach maintains recording accuracy by providing sufficient visual feedback for instruction detection while significantly reducing power consumption compared to continuous display.
2Reliability
If image capture timing is synchronized with display timing, then recording accuracy is improved, but response speed deteriorates
Solution Approach 1:
The imaging control section performs sequential image capture in advance and stores the captured images. The display control section then selects and displays images from the captured sequence at predetermined intervals. This preliminary capture approach ensures that when a recording instruction is detected based on the displayed image, the corresponding captured image is already available, maintaining recording accuracy without requiring real-time synchronization that would slow down the response.
Data Source
AI summary
In a digital camera, burst continuous shooting of continuously capturing a predetermined number of images by an imaging section and retaining and updating them as required is performed. When an instruction to display a live view image is provided, a live view image is generated from frame images acquired by the burst continuous shooting, and transmitted to a remote control device. In the remote control device, when a shutter operation using a touch sensor or a mechanical shutter operation is performed by an operation section, a photographing request is transmitted to the digital camera. In the digital camera, when this request is accepted, whether a live view image has been transmitted is judged. When it has been transmitted, a frame image serving as a source of the live view image at the timing of the shutter operation is extracted, and stored in a recording medium as a processed image.