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—The purpose of this paper is to experimentally study Optical All Pass Filters (OAPF) and optimize the value of distance of origin from poles (r). Using the value of transfer function of optical all pass filter which is of 2 nd order we found the factor of numerator and denominator. In this work, we took the value of ‗r' as 0.660 and the angular position (w(More)
— Reliability of systems used in space, avionic and biomedical applications is highly critical. Such systems consist of an analog front-end to collect data, an Analog-to-Digital Converter (ADC) to convert the collected data to digital form and a digital unit to process it. Though considerable amount of research has been performed to increase the reliability(More)
In many applications high-speed performance is required. For this purpose, conventional multi-carrier techniques are usually chosen, but this results in the lowering of spectrum efficiency. So, the principles of Orthogonal Frequency Division Multiplexing are used in such applications. This paper gives the details of the development of IFFT & FFT(More)
This paper presents a method for classification of liver ultrasound images based on texture analysis. The proposed method uses a set of seven texture features having high discriminative power which can be used by radiologists to classify the liver. Feature extraction is carried out using the following texture Based upon the results of Linear Discriminative(More)
BACKGROUND Previous randomized trials have shown that progesterone administration in women who previously delivered prematurely reduces the risk of recurrent premature delivery. Asymptomatic women found at midgestation to have a short cervix are at greatly increased risk for spontaneous early preterm delivery, and it is unknown whether progesterone reduces(More)
BACKGROUND Readmission within 30 days is increasingly evaluated as a measure of quality of care. There are few data on the rates of readmission after subarachnoid hemorrhage (SAH). OBJECTIVE We sought to determine the predictors of 30-day readmission in patients with SAH. METHODS We prospectively identified 283 patients with SAH admitted between 2006(More)
This paper provides a comparative study of various spatial domain filters for speckle suppression in Ultrasound images. Spatial domain filters are easy to implement on real time systems because they work faster than other methods like multi-resolution or wavelets based filters. Different filters have been evaluated experimentally on synthetic and real(More)
Wireless Body Area Network in recent years has received significant attention, due to their market potential to reduce the healthcare cost as well as load of medical professionals, resulting in higher efficiency. This paper addresses the available wireless body area network prototypes and the issues related to hardware implementations, software and wireless(More)