• Distance Estimation for Marine Vehicles
    This project’s goal is estimation of the distance of floating objects, such as boats and personal water craft (water scooters) from a video of maritime environment for the Protector USV, which is a product of Rafael. We propose a novel and efficient algorithm to achieve this goal. The algorithm receives as input a video of a marine environment. In addition, the algorithm receives as input for every video frame the...
  • Side Scan Sonar Image Compression
    Abstract Wireless communication between underwater vehicles such as side scan sonar (SSS) and its operator is crucial for perceiving correct and updated intelligence understanding of the seabed. This has many military applications such as underwater mine discovery, and civilian applications such as seabed texture analysis. SSS images usually contain high resolution data, and have high frequency content. Hence, aren’t compressed well by simple compression schemes such as JPEG. The Goal...
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  • underwater image
    We describes here a JPEG based compression scheme, adjusted specific for the underwater acoustical channel. The project goal was to deal with common bit error rates for the underwater acoustic channel, . Tow measures were used to quantify different solutions: compression ratio, which we tried to minimize, and SSIM, a measure that describes the quality of the image, which we tried to maximize. The scheme described in this report was...