A Novel 3D Reconstruction Sensor Using a Diving Lamp and a Camera for Underwater Cave Exploration

Area of Science:

• Geology and Hydrogeology
• Geophysical Imaging
• Environmental Science

Background:

• Karstic aquifer structures are complex and challenging to map accurately.
• Traditional mapping methods are often invasive, costly, or require specialized equipment.
• There is a need for accessible, non-invasive techniques for subterranean feature delineation.

Purpose of the Study:

• To develop a novel, low-cost, non-invasive 3D reconstruction method for karstic aquifer structures.
• To validate the proposed technique through field experiments in diverse karstic environments.
• To provide a versatile tool for detailed mapping of intricate subterranean features.

Main Methods:

• Utilizing structured light principles with a simple diving lamp and camera.
• Projecting light contours onto karstic surfaces and capturing resultant patterns.
• Reconstructing three-dimensional representations from captured light patterns.

Main Results:

• Successful 3D reconstruction of complex karstic features with high detail and resolution.
• Demonstrated efficacy across various field-deployed karstic settings.
• Validation of the method's accuracy and versatility in underwater environments.

Conclusions:

• The proposed structured light technique offers a cost-effective and non-invasive solution for mapping karstic aquifer structures.
• This method minimizes ecological disturbance while providing valuable hydrogeological insights.
• Potential applications include environmental monitoring, conservation, and sustainable water resource management in karstic terrains.