In this paper, we propose a fast motion estimation algorithm to be used for motion-compensated frame rate up conversion (FRUC). The FRUC techniques are used to enhance the visual quality of the low frame rate video on display. By using the motion vectors obtained from motion estimation process, the new frames can be interpolated. The motion estimation is the key part of the FRUC process but it ...

Carotid artery atherosclerotic disease is still a significant cause of cerebrovascular morbidity and mortality. A new angle-independent technique, measuring and visualizing blood flow velocities in all directions, called vector flow imaging (VFI) is becoming available from several vendors. VFI can provide more intuitive and quantitative imaging of vortex formation, which is not clearly distingu...

Most existing H.263+ rate control algorithms, e.g. the one adopted in the test model of the near-term (TMN8), focus on the macroblock layer rate control and low latency under the assumptions of with a constant frame rate and through a constant bit rate (CBR) channel. These algorithms do not accommodate the transmission bandwidth uctuation e ciently, and the resulting video quality can be degrad...

In this paper, we present a video frame-rate up-conversion scheme that uses transmitted true motion vectors for motion-compensated interpolation. In past work, we demonstrate that a neighborhood-relaxation motion tracker can provide more accurate true motion information than a conventional minimal-residue block-matching algorithm. Although the technique to estimate the true motion vectors is a ...

The frame rate of the digital high-speed video camera was 2000 frames per second (fps) in 1989, and has been exponentially increasing. A simulation study showed that a silicon image sensor made with a 130 nm process technology can achieve about 1010 fps. The frame rate seems to approach the upper bound. Rayleigh proposed an expression on the theoretical spatial resolution limit when the resolut...

Many vision applications would benefit from framerate, dense stereo. In this paper we present a robust algorithm implemented on a single board for a PC. The algorithm used is census transform correlation, which is well-suited for hardware implementation. Unlike existing frame-rate stereo methods, census transform correlation is robust to outliers, and does not assume that corresponding points h...

Multi-frame rate rendering is a technique for improving interaction fidelity in complex virtual environments. The technique renders the interactive elements of a scene on a separate graphics processor and composes it with the remainder of the scene using optical superposition or digital composition. Multi-frame rate rendering is naturally implemented on a graphics cluster. With the recent avail...

It is well known [5] that variations in speaking rate can account for a signi cant percentage of errors in practical speech recognition tasks. This is the result of the dynamic nature of speech which is not modelled properly by the standard HMM structure. This paper proposes an extension to the standard HMM that takes advantage of the information about the rate of speech that is contained in in...

Recently, there has been great interest in 3-D ultrasound imaging, but power constraints have precluded practical implementation of high-resolution and highframe-rate 3-D ultrasound in handheld imaging platforms. In this paper, we propose a separable beamforming procedure for both 3-D synthetic aperture and plane wave systems that drastically reduces computational and hence power requirements. ...

| In spite of the excellent bit error rate performance of the original turbo-code, simulations indicate that this code yields relatively poor frame error rate performance. In this paper we show that \primitive" turbo-codes and \asymmetric" turbocodes provides both good bit error rate and frame error rate performance.