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Long-working-distance 3D measurement with a bionic curved compound-eye camera
Optics Express
|October 19, 2022
Summary
This study presents a bionic compound-eye camera capable of 3D measurement up to 3.2 meters. This technology offers a wide field of view and potential applications in UAV obstacle avoidance and robot navigation.
Area of Science:
- Robotics and Computer Vision
- Biomimetic Engineering
- Optical Measurement Systems
Background:
- Traditional cameras face limitations in wide field-of-view 3D measurement.
- Bionic compound-eye cameras offer a multi-aperture design for enhanced depth perception.
- Existing calibration methods are unsuitable for cameras with numerous ommatidia.
Purpose of the Study:
- To demonstrate 3D measurement capabilities of a bionic curved compound-eye camera.
- To develop and validate a novel calibration method for compound-eye cameras.
- To explore applications in long-working-distance, wide-field-of-view scenarios.
Main Methods:
- Designed a bionic curved compound-eye camera with overlapping fields of view.
- Developed a batch calibration method using CALTag calibration boards.
- Implemented a 3D measurement algorithm tailored for the compound-eye camera.
Main Results:
- Achieved 3D measurement with a working distance up to 3.2 meters.
- Demonstrated a full field of view (FOV) of 98° for 3D measurement.
- Successfully reconstructed complete depth maps from captured images.
Conclusions:
- The bionic compound-eye camera is effective for long-working-distance 3D measurement.
- This technology has significant potential for UAV obstacle avoidance and robot navigation.
- The developed calibration and measurement methods are robust for complex multi-aperture systems.
