Camera Motion Detection for Capturing Unpredictable Subject Actions
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Solution Overview
Problem
Users face difficulties in capturing natural actions of moving subjects with electronic devices due to unpredictable motions, making it challenging to photograph them effectively.
Innovation Solution
An electronic device equipped with a camera, processor, and memory that estimates subject and device motions, adjusting photographing conditions to capture images based on user selection and recognized motions or emotions, using various sensors and image processing modules to control image capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device captures images based on user selection only, then the device operation is simple, but the device cannot capture moving subjects effectively when they perform unexpected motions
Solution Approach 1:
The device performs preliminary actions by continuously monitoring subject motion and pre-adjusting photographing conditions before the actual capture moment. The processor estimates subject motion in advance and prepares appropriate photographing parameters (exposure time, shutter speed, focus) so that when the user triggers capture, the device is already optimized for the detected motion state, ensuring reliable capture of moving subjects.
Solution Approach 2:
The device implements feedback by continuously monitoring subject motion through image analysis and using this information to dynamically adjust photographing conditions. The processor analyzes subject motion from captured images, feeds this motion information back to the control system, and automatically modifies photographing parameters accordingly, creating a closed-loop system that adapts to moving subjects in real-time.
2Productivity
If the device automatically adjusts photographing conditions based on subject motion, then the image capture effectiveness improves, but the device complexity increases due to additional sensors and processing requirements
Solution Approach 1:
The device achieves multi-functionality by enabling the camera system to operate in multiple modes: manual user-triggered capture and automatic motion-based capture. The same image sensor and processor serve both functions, with the processor capable of both capturing user-requested images and analyzing subject motion to trigger automatic captures. This universal design allows the device to adapt to different shooting scenarios without requiring separate dedicated systems.
Solution Approach 2:
The device performs self-service by automatically detecting subject motion and triggering image capture without requiring continuous user intervention. The system monitors the captured images itself, estimates subject motion from the image data, and autonomously decides when to capture, eliminating the need for external motion sensors or manual operation for every shot.
3Speed
If the device captures images at high speed to follow subject motion, then the subject motion can be captured accurately, but the exposure time decreases making it difficult to capture clear images
Solution Approach 1:
The device dynamically changes photographing parameters based on detected subject motion. When fast motion is detected, the processor adjusts multiple parameters simultaneously: increases frame rate or triggers rapid sequential captures to match motion speed, while also adjusting exposure time, shutter speed, and ISO sensitivity to maintain image quality. This coordinated parameter adjustment allows the system to capture fast-moving subjects clearly without sacrificing either speed or quality.
Data Source
AI summary
An electronic device is provided. The electronic device includes a camera, a display, a processor electrically coupled with the camera and the display, and a memory electrically coupled with the processor. The memory is configured to store instructions which, when executed, instruct the processor to, when a photographing request signal is received, estimate a motion of a subject within an image that is acquired by the camera, when the motion of the subject within the image acquired by the camera is not recognized, control the camera to capture a first type image by applying a first photographing condition, and when the motion of the subject within the image acquired by the camera is recognized, control the camera to capture a second type image by applying a second photographing condition.