Information Sciences

Two-Way, Freeform, Speech-to-Speech Translation Systems for Tactical Use

Speech-to-speech translation technologies enable English speakers to quickly communicate with the local population without an interpreter.

The Spoken Language Communication and Translation System for Tactical Use (TRANSTAC) is developing and fielding freeform, two-way translation systems that enable speakers of different languages to communicate with one another in real-world ...
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Universal Sparse Modeling

Sparse data models, where data is assumed to be well represented as a linear combination of a few elements from a dictionary, have gained considerable attention in recent years, and their use has led to state-of-the-art results in many signal and image processing tasks. Sparse modeling calls for constructing a ...
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Web Service and Interface for Remote Electronic Device Characterization

Remote users can control measurements and monitor results in real time from anywhere on the Internet.

A lightweight Web Service (WS) and a Web site interface have been developed that enable remote measurements of electronic devices as a “virtual laboratory.” Using standard browsers without additional plug-ins (such as ...
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Comparison of Subpixel Phase Correlation Methods for Image Registration

This algorithm for subpixel-accuracy frame registration accurately processes multispectral imagery.

When working sequences of images, registration of the frames to a common point of reference is an essential prerequisite for many types of image analysis. The phase correlation method (PCM) is a popular Fourier domain method to register ...
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