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CAMSUB3D
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On December 21, 2023, the Junta de Andalucía (regional goverment of South of Spain) published the resolution of the procedure for funding R&D&I Projects under a competitive regime, within the framework of the Complementary Plan for Marine Sciences and the Recovery, Transformation and Resilience Plan, in its call for the year 2023. In this call, funding was granted for the project called "Advanced 3D camera for optimized capture of underwater images and wireless recharging (CAMSUB3D)", requested by members of the IIO.
The CAMSUB3D Research Project is focused on the design and industrial manufacture of a lightweight and computationally efficient 3D camera, which obtains high-quality images with distance or RGBD (Red, Green, Blue, Distance) information in an underwater environment. Starting from a 3D camera model that has been successfully used commercially in atmospheric environments (from the company photonicSENS), it is intended to modify it for optimal operation in an underwater environment through five main lines of action:
- Analysis of the light spectrum: the lighting used to capture the images largely determines the image quality that can be obtained. The aim is to carry out a comparative study of the lighting requirements according to the light absorption characteristics that occur in seawater.
- Optics: in this area, an analysis, design and industrial manufacture of the lenses necessary for the correction of adverse optical phenomena will be carried out, such as colour absorption, refraction, chromatic aberration, etc.
- Software application: a new image processing system is included in the 3D camera that allows the necessary corrections to be made to improve the quality of underwater images, with the idea of incorporating artificial intelligence techniques.
- Calibration: the developed system will use a calibration procedure for the 3D camera in an aquatic environment through the design of some software technique with support elements (colour charts, grid patterns, etc.).
- Wireless power supply: a novel procedure will be used by which the camera battery can be charged when it is submerged without the use of cables connecting it to the transmitter source. To do this, an inductor coil will charge in proximity to the camera's receiver coil with a WPT (Wireless PowerTransfer) power transfer system.
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