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pro vyhledávání: '"Shahriar Negahdaripour"'
Implementation of the Optical Flow to Estimate the Propagation of Eddies in the South Atlantic Ocean
Publikováno v:
Remote Sensing, Vol 15, Iss 15, p 3894 (2023)
The ocean is filled with mesoscale eddies that account for most of the oceanic kinetic energy. The importance of eddies in transporting properties and energy across the ocean basins has led to numerous efforts to track their motion. Here, we implemen
Externí odkaz:
https://doaj.org/article/0fed72c8f6224feb9db3a79aa8aa61d1
Autor:
Shahriar Negahdaripour
Publikováno v:
IEEE Journal of Oceanic Engineering. 45:547-562
New generation of underwater 2-D forward-look sonar video cameras operating at near and over 1-MHz frequency offer images with enhanced target details. Within their limited range of only tens of meters, they are the most suitable imaging systems for
Publikováno v:
Multimodal Sensing and Artificial Intelligence: Technologies and Applications II.
Autor:
Shahriar Negahdaripour, Murat D. Aykin
Publikováno v:
IEEE Journal of Oceanic Engineering. 42:574-589
Building 3-D object models from 2-D images is a key capability for target classification and identification, reacquisition, and environmental mapping, among many applications in underwater with poor visibility. We present a novel approach in utilizin
Publikováno v:
Multimodal Sensing: Technologies and Applications.
Autor:
Shahriar Negahdaripour
Publikováno v:
OCEANS 2018 MTS/IEEE Charleston.
New generation of underwater 2-D forward-look sonar video systems operating at over 1 MHz frequency offer images with enhanced target detail. Within limited range of only tens of meters, they are the most suitable imaging systems for conducting visua
Publikováno v:
OCEANS 2018 MTS/IEEE Charleston.
The traditional navigation cameras are being replaced by 2-D forward-scan sonar video devices, when untethered submersible robots operate in underwater environments with poor visibility. A typical FS sonar image comprises of object highlight and cast
Publikováno v:
Signal Processing: Image Communication. 47:96-114
A new underwater video compression technique based on adaptive hybrid wavelets and directional filter banks is proposed to achieve both high coding efficiency and good reconstruction quality at very low-bit rates. A key application is the real-time t
Autor:
Shahriar Negahdaripour, Murat D. Aykin
Publikováno v:
IEEE Journal of Oceanic Engineering. 41:569-582
Sonar images are formed by transmitting acoustical pulses and measuring the reflected sound power from the scene surfaces. The recorded signal by a sonar device encodes information about the shape and material properties of these surfaces. In this pa
Autor:
Shahriar Negahdaripour
Publikováno v:
IEEE Transactions on Robotics. 29:1016-1030
Visual odometry involves the computation of 3-D motion and (or) trajectory by tracking features in the video or image sequences recorded by the camera(s) on some autonomous terrestrial, aerial, and marine robotics platform. For exploration, mapping,