An electronic image stabilization algorithm is proposed based on improved Sage-Husa adaptive visual smoothing. It uses visual attention features to smooth inter-frame global motions, thus resulting in stabilized sequences. Firstly, corners are detected from reference frame as feature points. Through matching features in current frame, deleting mismatched points and solving motion equations, glo...

High-performance scheduling is critical to the achievement of application performance on the computational grid. New scheduling algorithms are in demand for addressing new concerns arising in the grid environment. One of the main phases of scheduling on a grid is related to the load balancing problem therefore having a high-performance method to deal with the load balancing problem is essential...

This report presents a MIMO sounding system dedicated to short range wireless communication. The system can easily be integrated with Vector Network Analyzer (VNA) and other commercial equipments. The advantage of our proposed system is the achievement of completely automatic measurement, while retaining accuracy. Using the system, a double directional measurement campaign in indoor NLOS enviro...

Serial analysis of gene expression (SAGE) is a method for identifying and quantifying transcripts from eukaryotic genomes. Since its invention, SAGE has been widely applied to analyzing gene expression in many biological and medical studies. Vast amounts of SAGE data have been collected and more than a thousand SAGE-related studies have been published since the mid-1990s. The principle of SAGE ...

SAGE is a project that the PI launched in January 2005 to create a software environment for research and experimentation in algebra, geometry, number theory, cryptography, and numerical computation. This involves the creation of free open source software and databases that support advanced mathematical research. The PI is one of the more sought-after people by the world-wide community of mathem...

This paper presents the problem of estimating the parameters of a given number of superimposed signals, as is the case of the received signal in wireless communications. Based on the description of the received signal in the frequency domain, one version of the SAGE (Space-Alternating Generalized ExpectationMaximization) algorithm is presented, allowing the estimation, for each impinging ray, t...

This paper introduces the concept of measuring double directional channels in ultra wideband (UWB) systems. Antennaindependent channel data were derived by doing the measurements in a wooden Japanese house. The data were useful for investigating the impact of UWB antennas and analyzing waveform distortion. Up to 100 ray paths were extracted using the SAGE algorithm and they were regarded as bei...

I The validity of the stratospheric aerosol measurements made by the satellite sensors SAM II and SAGE has been tested by comparing their results with each other and with results obtained by other techniques (lidar. dustsonde. filter. impactor). The latter type of comparison has required the development of special techniques that (1) convert the quantity measured by the correlative sensor (e.g....

A Maximum Likelihoocl (ML) method for joint estimation of amplitude, phase, time delay, antl da ta demodulation in a single-user direct sequence spread spectrum comniunication system is developed. The likelihood function is analytically intractable, so a recursive estimation algorithm is considered. The Expectation Maximization (EM) algorithm has been used in similar problems, however, in this ...

Stratospheric aerosol extinction profiles have been retrieved from SCIAMACHY/Envisat measurements of limb-scattered solar radiation. The retrieval is an improved version of an algorithm presented earlier. The retrieved aerosol extinction profiles are compared to co-located aerosol profile measurements from the SAGE II solar occultation instrument at a wavelength of 525 nm. Comparisons were carr...