Hidden Markov Models as a tool to measure pilot attention switching during simulated ILS approaches
A device to be used for sitting at a table in a water filled area, such as a water pool. The device comprises an upper rigid, flat, floating body made of buoyant material and defining a table top, at least one lower seat member and a connecting member for rigidly attaching a bottom face of each lower seat member to an underface of the floating body at a level relative to the floating body such that a person can sit on the seat member while resting ones forearms or elbows on top of the floating body. The floating body and the seat member have surfaces and thicknesses enabling them to be self-stable in the water filled area while preventing a top surface of the floating body to be submerged when the person remains seated on the seat member.
In this paper, we propose a limited-view computer tomography(CT) image reconstruction method that reduces the scan times and X-ray dosages in the semiconductor industry. To reduce streak artifacts, which are caused by an insufficient number of views, we study the sinogram interpolation method based on the average pixel value. The change patterns are tracked by iteratively averaging the values. We use a shepp-logan phantom to evaluate the effectiveness of the comparative interpolation method. The results showed that the streak artifacts were reduced in the proposed interpolation method. In addition, we compared our method with another interpolation method using the peak-signal-to-noise ratio(PSNR) and performance time.