Automatic Still Image Capture During Video Recording
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Solution Overview
Problem
Current digital photographing apparatuses lack the ability to capture still images automatically during moving image recording without user input, limiting the capture of desired still images based on specific conditions such as face detection or composition.
Innovation Solution
A method and apparatus that allow for setting still image capturing conditions, detecting faces or object composition during moving image recording, and automatically capturing still images when these conditions are met, using a digital photographing apparatus with a moving image file generating unit and a dual capturing unit that resizes and generates both moving and still image files.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a digital photographing apparatus continuously records moving images, then the duration of recording can be extended, but the ability to capture desired still images automatically is lost
Solution Approach 1:
The photographing apparatus automatically detects faces in moving image frames and captures still images when detection conditions are met, without requiring user intervention. The system serves itself by autonomously monitoring frames, identifying face regions, and triggering still image capture based on pre-set conditions during continuous moving image recording.
2Reliability
If the apparatus captures still images continuously during moving image recording, then the probability of capturing desired images increases, but the device complexity and data processing load increase
Solution Approach 1:
Instead of capturing every frame or using complex algorithms, the system applies a simplified face detection method that checks only essential features (face region presence and basic composition). This partial action approach captures sufficient still images under normal conditions without the full complexity of comprehensive image analysis, balancing reliability with system simplicity.
3Manufacturing precision
If high-resolution still images are captured during moving image recording, then image quality improves, but the processing time and energy consumption increase
Solution Approach 1:
The apparatus performs preliminary processing by identifying face regions and determining capture conditions during moving image recording before final still image generation. By pre-processing frame analysis and preparing capture decisions in advance, the system reduces the time required for actual still image processing and generation when capture is triggered.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the capture of high-quality still images without user intervention during moving image recording, ensuring that desired images based on set conditions are captured, such as face detection or composition, improving the functionality of digital photographing devices.
Implementation Method 1
an imaging device that photoelectrically transforms incident light to generate an imaging signal
Data Source
AI summary
A method of controlling a digital photographing apparatus is provided. The method includes: setting a still image capturing condition; capturing a moving image; and capturing a still image when the still image capturing condition is satisfied during photographing of the moving image.