We present an approach for navigating in unknown environments while, simultaneously, gathering information for inspecting underwater structures using an autonomous underwater …
In this study, a laser line auto-scanning system was designed to perform underwater close- range 3D reconstructions with high accuracy and resolution. The system changes the laser …
This paper shows an interesting case of coastal landscape reconstruction by using innovative marine robotic instrumentation, applied to an archaeological key-site in the …
Nowadays archaeological and architectural surveys are based on the acquisition and processing of point clouds, allowing a high metric precision, essential prerequisite for a …
Q Xue, Q Sun, F Wang, H Bai, B Yang, Q Li - Sensors, 2021 - mdpi.com
This paper presents an underwater high-precision line laser three-dimensional (3D) scanning (LLS) system with rotary scanning mode, which is composed of a low illumination …
Acquisition and processing of point clouds, allowing the high dimensional accuracy that is an essential prerequisite for good documentation, are widely used today for cultural heritage …
Multi-image photogrammetry can in favorable conditions even under water generate large clouds of 3D points which can be used for visualization of sunken heritage. For analysis of …
X Wu, XC Tang - International Journal of Advanced Robotic …, 2019 - journals.sagepub.com
Light changes its direction of propagation before entering a camera enclosed in a waterproof housing owing to refraction, which means that perspective imaging models in the …
A Abadie, P Boissery, C Viala - The Photogrammetric Record, 2018 - Wiley Online Library
Over the past decade, underwater photogrammetry has been experiencing an increased interest due to the enhancement of camera performance and computing power. This study …