3 research outputs found
Integration of optical and acoustic sensors for D underwater scene reconstruction.
Combination of optical and acoustic sensors to overcome the shortcomings
presented by optical systems in underwater 3D acquisition is an emerging field
of research. In this work, an opti-acoustic system composed by a single camera and
a multibeam sonar is proposed, providing a simulation environment to validate its
potential use in 3D reconstruction. Since extrinsic calibration is a prerequisite for this
kind of feature-level sensor fusion, an effective approach to address the calibration
problem between a multibeam and a camera system is presented.Peer Reviewe
Visually pleasant blending techniques in underwater mosaicing
of two or more images that are then combined into a single and usually
larger one. The applications of mosaicing comprehend panoramic
photography, super-resolution, virtual environments and vision based
navigation systems, as a most relevant exponents. Besides generic camera
issues as geometric and chromatic distortions, underwa-ter images
are aff ected by particular factors as non-uniform illumination, caustics,
blurring, suspended particles and scattering, making even more diffi cult
the alignment and blend-ing. The aim of this work is to perform a re-view
on the existing image blending techniques specially focusing the study
on its application on the underwater imaging
Integration of optical and acoustic sensors for D underwater scene reconstruction.
Combination of optical and acoustic sensors to overcome the shortcomings
presented by optical systems in underwater 3D acquisition is an emerging field
of research. In this work, an opti-acoustic system composed by a single camera and
a multibeam sonar is proposed, providing a simulation environment to validate its
potential use in 3D reconstruction. Since extrinsic calibration is a prerequisite for this
kind of feature-level sensor fusion, an effective approach to address the calibration
problem between a multibeam and a camera system is presented.Peer Reviewe