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We developed a 4D SPECT image reconstruction method with respiratory motion (RM) and cardiac motion (CM) compensation, and evaluated its performance using a previously developed 4D channelized Hotelling observer (CHO) model for the task based evaluation of 4D medical images. A series of 4D XCAT (eXtended CArdiac Torso) phantoms with and without a regional CM abnormality was generated that divided...
Employing mobile sensor data to recognize user behavioral activities has been well studied in recent years. However, exploiting mobile motion data as a novel biometric modality remains a new area. In this paper, we propose two novel methods, a Statistic Method to intuitively apply classifier on the statistic features of the data; and a Trajectory Reconstruction Method to reconstruct the Mobile Device...
Current traffic noise mapping systems are not ideal for distributed computing in dynamic network. This paper investigates the approach and mechanism of distributed noise map generation based on Service Object Oriented Architecture (SOOA). Service Oriented Computing Environment (SORCER) is employed to build a highly flexible distributed network services space. After that, a SOOA based computer aided...
A rotating fan could produce noise of both broadband and discrete frequency. The discrete part typically consists of shaft frequency, blade passage frequency (BPF) and their higher harmonics. The shaft-order noise, which is mainly induced by unbalanced rotating, is often hard to be eliminated. In this paper, the rotating noise caused by geometric asymmetry is discussed and predicted. Analytic point...
Anomaly detection of small target in sea clutter based on S.D.E. theory is a cutting-edge research topic. This paper discusses the effect of window size of correlation on anomaly detection. A novel method is presented to adaptively adjust the window size, which results an obvious improvement of performance.
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