Mobile Camera-Sensor Position Fusion for Analytical Measurement Guidance
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Solution Overview
Problem
Existing methods using mobile devices for analytical measurements face challenges in deriving spatial and angular orientation, particularly when computing resources are limited, leading to slow user guidance and potential looping in positioning.
Innovation Solution
A method utilizing a mobile device with a camera and sensors to capture a time series of images and measurement information, combining image-derived and measurement-derived position data to provide real-time user guidance for correct positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image processing is used to derive spatial information from captured images, then position information can be obtained, but with limited computing resources the processing speed is slow leading to delayed user guidance
Solution Approach 1:
The system segments the image processing task by using dedicated hardware components (GPU, NPU, or DSP) separate from the main CPU to process spatial information from captured images. This division allows parallel processing where the main processor handles application logic while dedicated hardware accelerates image analysis, thereby maintaining measurement precision while improving user guidance speed.
Solution Approach 2:
The patent introduces an intermediary processing layer that captures images and extracts spatial information before passing data to the main application. This intermediary stage pre-processes image data to extract only essential position information, reducing the computational burden on the main system and enabling faster user guidance without sacrificing accuracy.
2Measurement precision
If comprehensive image processing is performed to ensure accurate spatial and angular orientation, then measurement accuracy is improved, but computing resource consumption increases
Solution Approach 1:
The system performs partial image processing by extracting only the essential spatial and angular orientation information needed for measurement alignment, rather than processing the entire image comprehensively. This selective approach maintains sufficient measurement precision while significantly reducing computing resource consumption and energy usage.
Solution Approach 2:
The patent changes processing parameters by adjusting the level of detail in spatial information extraction based on available computing resources. When resources are limited, the system processes fewer image parameters or uses simplified algorithms, while maintaining critical orientation data needed for accurate measurements, thus balancing precision with energy efficiency.
Data Source
AI summary
A method of performing an analytical measurement includes using a camera of a mobile device to capture a time series of images of at least a part of a medical article. From this, image-derived position information on a relative position of the mobile device and the medical article is derived, thereby generating a first time series of position information. A sensor captures measurement information on the relative position of the mobile device and the medical article. Measurement-derived position information is used to generate a second time series of position information, and the first and second time series of position information are combined to generate an augmented time series of position information. From this, guidance is provided to a user to move the mobile device and the medical article into a relative target position. A mobile device, a kit and a computer program are also disclosed.