1. Underwater databank augmentation method based on 3-D modeling to elevate the recognition accuracy by 10~20% for underwater object recognition
2. Modified Inception module added in object detection network, enhanced by parallelized multi-dimensional feature extraction algorithm to reduce power consumption and computation complexity for AI learning and edge computing
3. Underwater data fusion technology to integrate measurements from IMU, DVL, and USBL sensors to increase the accuracy of underwater positioning
4. Monitoring SOC, SOH, current, voltage, and temperature of battery modules for AUV battery management system to reduce DC-DC conversion loss, ensure safety, keep enough operation time, and allocate the power resources efficientlyThe major breakthrough of this project is aimed at embedding AI technologies in unmanned AUVs for deep sea operations. All of major KPI comparisons with international benchmark (IBK) are listed as follows.

1. The developed AI-based underwater object recognition can identify 5 different objects at the same frame/time with 82.05% accuracy (mAP).
2. Underwater image enhancement is elevated to 7.406 over IBK= 7.199. PCQI is increased to 0.9859 higher than IBK = 0.9076.
3. AUV navigation control system performs auto-heading +/-5 degrees (IBK=10 degree), auto-depth +/-0.1 m (IBK=0.2m), and auto-altitude +/-0.1 m (IBK=0.2m).
4. Databank augmentation based on 3D modeling generates images with 10 viewpoints (IBK=4) and increases by 1000 times (IBK=60).This project is aimed at embedding AI technologies in unmanned AUVs for deep sea operations. The potential application areas are as follows.

1. Resource Exploration
a. Hydrological investigation and underwater exploration
b. Oceanic biology research and observation
c. Underwater mineral and energy investigation
d. Underwater archeology
e. Underwater bathymetry and seabed profiling

2. Industry and Aquaculture
a. Off-shore wind farm seabed investigation
b. Underwater cable inspection
c. Marine aquaculture and farming
d. Underwater rescue
e. Underwater environment monitoring

3. Military and Defense
a. Military object detection and positioning
b. Underwater mine hunting and sweeping
c. Harbor security
d. Torpedo detection
e. Tracking diver, intruder or undefined vessel