Head-Worn Imaging Attitude Stabilization via Acceleration Feedback
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Solution Overview
Problem
Imaging apparatuses worn around the user's head face challenges in maintaining a stable attitude during image capture, leading to unstable imaging conditions.
Innovation Solution
Incorporating an attitude information acquisition unit and a control unit that utilize acceleration data from a sensor to determine and stabilize the attitude of the imaging apparatus, allowing for controlled imaging and subsequent blur correction during playback by using either current or past stable attitude data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If imaging is performed with a head-worn apparatus during movement, then imaging versatility and user mobility are improved, but attitude stability and image quality deteriorate
Solution Approach 1:
The system performs preliminary detection of stable attitude periods before actual imaging. The attitude detection unit identifies time periods where the apparatus maintains a stable attitude, and the control unit stores imaging timing information during these pre-identified stable periods, ensuring quality images are captured before movement disrupts the attitude again.
Solution Approach 2:
The system continuously monitors attitude information from detection units and uses this feedback to dynamically determine imaging timing. The control unit adjusts imaging decisions based on real-time attitude stability feedback, selecting only those moments when the attitude meets stability criteria for quality imaging.
2Manufacturing precision
If imaging is performed only when attitude is stable, then image quality is improved, but imaging opportunities and productivity are reduced
Solution Approach 1:
The system proactively identifies and stores imaging timing information during stable attitude periods before movement occurs. By preparing timing data in advance during stable periods, the system ensures quality images are captured at the right moments without losing productivity opportunities.
Solution Approach 2:
The attitude detection and timing determination operations continue continuously even during movement, maintaining readiness to capture images. The system doesn't stop monitoring for stable periods but continues useful action of detecting and preparing to image whenever stability occurs, maximizing imaging opportunities.
3Stability of the object's composition
If attitude detection and imaging control are added, then attitude stability and image quality are improved, but device complexity increases
Solution Approach 1:
The control unit performs multiple functions: it controls imaging timing based on attitude stability, stores timing information for later playback, and manages both detection and correction operations. This multi-functionality reduces the need for separate dedicated components for each function, thereby limiting the increase in device complexity.
Solution Approach 2:
The system uses its own detection capabilities to automatically determine imaging timing and perform blur correction without external intervention. The attitude detection unit and control unit work together in a self-service manner, with the system using its detected attitude information to automatically adjust imaging parameters and correct blur during playback.
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
Ensures stable image capture and effective blur correction by determining and maintaining the correct attitude of the imaging apparatus, even during unstable conditions, and applying this information for accurate playback processing.
Implementation Method 1
an attitude information acquisition unit that acquires each piece of information related to the attitude of a data acquisition apparatus at the time of acquiring a data
Data Source
AI summary
When it is determined that acceleration acting on an imaging apparatus is stable and an attitude direction determination result based on the acceleration continues as the same result, an attitude determination unit updates the attitude direction determination result to the latest one to be used for blur correction of a frame upon playback. On the other hand, when the acceleration acting on the imaging apparatus is not stable, when the attitude direction determination result based on the acceleration is different from the last result, or when attitude direction determination result does not continue predetermined times though it is the same result as the last determination result, the attitude determination unit does not update the attitude direction determination result to hold the past attitude direction determination result and use it for blur correction and the like of the frame upon playback.