In this paper, we present feature-based technique for construction of mosaic image from underwater video sequence, which suffers from parallax distortion due to propagation properties of light in the underwater environment. The most of the available mosaic tools and underwater image mosaicing techniques yields final result with some artifacts such as blurring, ghosting and seam due to presence ...

Significant advances in various relevant science and engineering disciplines have propelled the development of more advanced, yet reliable and practical underwater vehicles. A great array of vehicle types and applications has been produced along with a wide range of innovative approaches for enhancing the performance of unmanned underwater vehicle (UUV). These recent advances enable the extensi...

A procedure for automatic mosaic construction over long image sequences is presented. This mosaic is used by an underwater vehicle to estimate its motion with respect to the ocean floor. The system exploits texture cues to solve the correspondence problem. The dynamic selection of a reference image extracted from the mosaic improves motion estimation, bounding accumulated error. Experiments wit...

This paper describes a small underwater robot designed for experiments with sensor-actuator networks. The robot is based on the mote platform, which is used extensively in the sensor networking community as an experimental testbed. The components and construction of the robot are described. Preliminary tests of depth regulation and temperature measurement are reported and analyzed. Copyright c ...

S ensors and other data sources, combined with sophisticated signal processing techniques, promise to help scientists better observe and analyze various types of environmental data. Biologist Nathan Merchant, for example , has created a method for tracking ships and monitoring underwater noise levels in protected marine mammal habitats. Merchant, senior scientist for underwater noise at the U.K...

Multi-robot cooperation is a very important area in the field of robot. As we know, it is difficult to use a single robot to complete tasks independently. Often, people use multiple robots cooperation in order to compensate for the lack of individual ability. Multi-level robot can greatly improve the efficiency of the whole system. Compared to a single robot, a coordinated multi-robot system ha...

Construction industry is considered as labour intensive, having shortage of skilled labour, unsafe with large number of industrial accidents. Construction industry requires high technology automation products (Robots) for improving productivity, safety, quality etc. Robots are developed by various countries in different areas like demolition, earthwork, bridge, tunnels, road work, underwater wo...

An inspection of signal processing approach in order to estimate underwater network cardinalities is conducted in this research. A matter of key prominence for underwater network is its cardinality estimation as the number of active cardinalities varies several times due to numerous natural and artificial reasons due to harsh underwater circumstances. So, a proper estimation technique is mandat...