Camera-Position Estimation Alignment for External Device Tracking
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Solution Overview
Problem
In electronic devices, errors occur in position information of external devices due to discrepancies between the positions of camera modules and position estimation modules, leading to incorrect display of virtual objects.
Innovation Solution
The electronic device includes a processor that identifies the distance between a camera module and a position estimation module, estimates the position of an external device, and corrects the position of objects in image information based on this distance, thereby aligning the position information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the position estimation module and camera module are disposed at different positions in the inner space, then the device can perform wireless communication and image capture functions, but position information errors occur due to the position discrepancy
Solution Approach 1:
The patent introduces a position correction module as an intermediary component that receives position information from the position estimation module and camera information from the camera module, then corrects the position information based on the spatial relationship between the two modules. This intermediary correction mechanism resolves the position discrepancy without requiring the estimation module and camera module to be co-located, thus maintaining both wireless communication functionality and position information accuracy.
2Measurement precision
If position correction is performed for all external devices, then position information accuracy is improved, but processing time and computational resources increase
Solution Approach 1:
The patent implements partial position correction by determining whether correction is necessary based on the type of external device and the magnitude of position deviation. Instead of universally correcting position information for all external devices, the system selectively applies correction only when needed (e.g., when the deviation exceeds a threshold or for specific device types), thereby reducing unnecessary processing time and computational resources while maintaining accuracy where required.
3Area of stationary object
If the distance between the position estimation module and camera module is increased, then the field of view is expanded, but position information error increases
Solution Approach 1:
The patent employs a feedback mechanism where the position correction module continuously monitors the position information from the position estimation module and compares it with the camera's reference frame. Based on this feedback, the system dynamically adjusts the correction parameters to compensate for the increased distance between modules, maintaining position information accuracy even when the field of view area is expanded by separating the modules further apart.
Data Source
AI summary
A device and a method for correcting an error in position information of an external device recognized by internal circuits in an electronic device are provided. The electronic device includes a housing, a first camera disposed in a first region of an inner space of the housing, a position estimation device disposed in a second region, different from the first region, in the inner space, and a processor operatively connected to the first camera and the position estimation device, wherein the processor can identify a first distance between the first camera and the position estimation device, estimate the position of the external device through the position estimation device, and correct, on the basis of the estimated position of the external device and the first distance, the position of an object related to the external device in image information acquired through the first camera.