Camera Field of View Correction via Head-Mounted Display Feedback
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Solution Overview
Problem
Existing body-worn camera systems face challenges in determining the correct field of view of cameras mounted on the body, particularly when a head-mounted display is used in conjunction with a separate camera on the shoulder or chest, leading to issues in monitoring or analyzing images due to incorrect angles of view.
Innovation Solution
An information processing apparatus that includes a determination unit to assess the field of view of a second camera worn by a person based on images captured by a first camera in a head-mounted display and a second camera, using relationship information to determine if the field of view is correct, and a notification unit to alert the user if it is not, allowing for adjustments to be made.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate camera is mounted on the shoulder or chest to capture close-up images, then the functionality and versatility of the system is improved, but the reliability of field of view accuracy deteriorates because the camera position is fixed and cannot be adjusted
Solution Approach 1:
The system uses the first camera to capture an image of the second camera itself, processes this image to determine the actual field of view of the second camera, and provides feedback information to the user. This feedback mechanism allows the user to recognize and correct any field of view inaccuracies in the second camera, thereby maintaining reliability while preserving the fixed mounting configuration's versatility.
2Device complexity
If the camera position is fixed to simplify the system structure, then the device complexity is reduced, but the measurement precision of the field of view deteriorates because the camera cannot be repositioned for optimal angles
Solution Approach 1:
The system employs self-service by using the first camera to automatically capture and process images of the second camera, thereby self-determining the field of view without requiring manual intervention or complex adjustment mechanisms. This maintains simple system structure while achieving precise field of view measurement through automated image processing.
3Ease of operation
If both cameras are provided in the head-mounted display to enable position adjustment, then the ease of operation is improved, but the device complexity increases due to the need for multiple cameras and position adjustment mechanisms
Solution Approach 1:
The invention extracts the field of view determination function from the head-mounted display by using a separate first camera positioned elsewhere on the body. This allows the second camera in the head-mounted display to be operated independently without requiring complex multi-camera configurations or position adjustment mechanisms, thereby reducing device complexity while maintaining ease of operation.
Data Source
AI summary
An information processing apparatus (2000) includes a determination unit (2020) and a notification unit (2040). The determination unit (2020) determines whether a field of view of a second camera is correct, on the basis of a first captured image (40), a second captured image (50), and relationship information (information indicating the relationship to be satisfied between a field of view of a first camera and the field of view of the second camera). In a case in which the field of view of the second camera is not correct, the notification unit (2040) notifies that the field of view of the second camera is not correct. The first camera is provided in a head-mounted display worn by a person. The second camera is provided in a part other than the head-mounted display.