We develop in this paper a new formulation for the calibration and pose estimation of three-
layer flat-refractive geometry. We then extend it into the general n-layer case. We show that …

Refraction-induced errors affect the accuracy of three-dimensional visual measurements in
deepwater environments. In this study, a binocular camera refractive imaging model was …

Underwater photogrammetry can efficiently document complex environments with limited
accessibility. As the establishment of reference control networks is involved, using the …

In cattle breeding, regularly taking the animals to the scale and recording their weight is
important for both the performance of the enterprise and the health of the animals. This …

Vision measurement has become an indispensable technology in tunnel construction.
However, the harsh construction environment necessitates the provision of a certain …

Localization of autonomous underwater vehicles is essential for underwater exploration,
environmental monitoring, and infrastructure inspections, as only a few examples. As …

Accurate calibration of imaging parameters is the key to achieve 3-D scanning in underwater
environment. However, the methods based on perspective principle have insufficient …

Addressing the issue of nonlinear aberration stemming from refraction encountered in
underwater binocular vision system measurements, we present an algorithm aimed at …

Many underwater robotic applications relying on vision sensors require proper camera
calibration, ie knowing the incoming light ray for each pixel in the image. While for the ideal …

In this paper, we present a complete refractive Structure-from-Motion (RSfM) framework for
underwater 3D reconstruction using refractive camera setups (for both, flat-and dome-port …