One of the most obvious differences between professional and amateur level video is the quality of camera motion. Hand-held amateur video typically is shaky and undirected, while professionals use car...
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Left-handed materials are artificial materials that exhibit negative permittivity and permeability when interacting with electromagnetic radiation.
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Image and video resizing involves adapting an image or video to displays with different sizes and aspect ratios, often resulting in warping or distortion. Video retargeting addresses the problem of ad...
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The effective speed of computer processors may be increased by speculative execution in which computer instructions are executed before the data necessary for that execution are available. Speculation...
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Mobile devices such as cell phones are used increasingly to connect to computer networks such as the Internet for Web browsing, email communication, voice-over-IP (VoIP) telephone and other Internet s...
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Operating systems, such as Microsoft Windows or Linux, provide one or more file systems to store and organize data. A file system stores file data on a storage device and makes the data available to t...
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Signal-to-noise ratio (SNR) is utilized in medical imaging as a quantitative measure of image quality. As SNR decreases, it becomes increasingly more difficult to differentiate between important anato...
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Time-frequency analysis involves detecting when oscillations of certain frequencies turn on and off. This kind of analysis is useful in nearly every field of science and engineering. The traditional a...
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Multicore processors incorporate independent cores onto an integrated circuit, which allows for faster processing by distributing portions of the parallel processing task among the different cores. Th...
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In applications such as military vehicles, ultrawide band antennas are needed to operate at very low frequencies. At such frequencies, the electromagnetic wavelength is very large. Consequently, any a...
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Suspension crystallization processes often result in crystals with a wide range of particle sizes.  Accurately controlling the distribution of shapes and sizes is a challenge in the pharmaceutical ma...
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Modern public information and transaction machines such as kiosks and automated teller machines (ATMs) frequently employ a touch screen in conjunction with a computer to provide multimedia capabilitie...
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Night vision systems utilize cameras that are sensitive to wavelengths such as infrared (IR) to produce image frames. The IR image frames may be displayed alone in sequence to provide a moving picture...
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Network intrusion detection systems (NIDS) use signature-based detection of malicious software, or malware, to identify suspicious patterns in network traffic. Malware can be disguised by changing dat...
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Wireless communication has grown significantly over the past several years. To support multiple private two-way communications, the available spectrum is divided into a number of sub-channels that are...
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Radiopharmaceuticals are radioactive materials that “target” specific tissues to allow imaging or treatment. During radiation therapy, the radiopharmaceutical must be administered to provide a rad...
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Multicore processor technology allows a program to utilize resources efficiently by splitting into concurrently running tasks, or threads. Problems exist when these tasks access the same data. If one ...
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Packet classification is a critical factor affecting the quality of service and security on Internet protocol and other packet-based networks.  Packet classification involves matching incoming inform...
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Multi-threaded software provides multiple execution “threads” that act like independent (but cooperating) programs and can be assigned to different computer processors for parallel, and thus faste...
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Support vector machines (SVMs) are powerful tools for classifying data that are often used in data mining operations. An SVM classifies data in extremely large data sets by identifying a linear or non...
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In the interconnected world of computers, malicious programs such as viruses have become an omnipresent and dangerous threat.
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As computer programs execute, they pass through different phases of operation that require more or less hardware resources. If the available hardware resources are insufficient for the needs of a part...
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Silicon is a relatively inexpensive material for making integrated power amplifiers for communications devices such as cell phones; however, these power amplifiers are generally limited to low power a...
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Network intrusion detection systems (NIDS) can help protect computer networks from worms, viruses and other malicious software. Today’s NIDS rely on a set of simple signatures to identify malicious ...
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Most decimal dividers are for fixed-point (typically integer) decimal data. They cannot be directly applied to floating-point decimal dividers; require time-consuming and error-prone scaling when work...
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