In this paper, we proposed a novel Coordinate Rotation Digital Computer (CORDIC) rotator algorithm that converges to the final target angle by adaptively executing appropriate iteration steps while keeping scale factor virtually constant and completely predictable. The new feature of our scheme is that, depending on input angle, can assume only two values, viz., 1 1//spl radic/2, it independent number executed iterations, nature word length. algorithm, compared conventional CORDIC, reduction...

This paper presents an architecture of the lifting-based running 3-D discrete wavelet transform (DWT), which is a powerful image and video compression algorithm. The proposed design one first lifting based complete 3-D-DWT architectures without group pictures restriction. new computing technique on analysis signal flow graph minimizes storage requirement. enjoys reduced memory referencing related low power consumption, latency, high throughput compared to those earlier reported works. has...

Frequent monitoring of blood glucose levels is an essential part diabetes care, but the invasiveness current devices deters regular measurement. Noninvasive measurement techniques are painless to implement and rely on changes in sample properties estimate concentration. However, such methods affected by presence different biomolecules, resulting increased estimation error necessitating calibration obtain accurate concentration estimates. The use photoacoustic spectroscopy for continuous...

Near infrared photoacoustic spectroscopy is utilized for the development of a continuous non-invasive glucose monitoring system diabetics. A portable embedded taking measurements on tissues to estimate concentration implemented using field programmable gate array (FPGA). The back-end architecture high-speed data acquisition and de-noising operates at 274.823 MHz Xilinx Virtex-II Pro FPGA. measurement technique verified in vitro solutions vivo tissues, with signal amplitude varying linearly...

This paper proposes an efficient constant multiplier architecture based on vertical-horizontal binary common sub-expression elimination (VHBCSE) algorithm for designing a reconfigurable finite impulse response (FIR) filter whose coefficients can dynamically change in real time. To design FIR filter, according to the proposed VHBCSE algorithm, 2-bit (BCSE) has been applied vertically across adjacent 2-D space of coefficient matrix initially, followed by applying variable-bit BCSE horizontally...

The use of near infra red (NIR) photoacoustic spectroscopy (PAS) for continuous non-invasive glucose measurement is outlined in the paper. A (PA) apparatus was constructed and PA measurements were made on solutions at multiple NIR excitation wavelengths. variety time frequency domain features, including amplitude area based extracted from measurements. These features observed to be proportional concentration sample. samples whole blood different concentrations showed similar results....

Fast computation of the discrete Hartley transform (DHT) may be performed by employing a set linear arrays Givens rotors. It is shown that interconnections between can realized in regular fashion governed permutation cycle determined simple arithmetic involving primitive root length. A suitable implementation rotor with add/subtract units and hard-wired shifters also suggested.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

This brief lays out cyclic redundancy check-based encoding scheme and presents an efficient implementation of the algorithm in field programmable gate array (FPGA) prototype for both binary Golay code (G <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">23</sub> ) extended xmlns:xlink="http://www.w3.org/1999/xlink">24</sub> ). High speed with low-latency architecture has been designed implemented Virtex-4 FPGA encoder without incorporating linear...

This paper examines the use of photoacoustic spectroscopy (PAS) at an excitation wavelength 905 nm for making continuous non-invasive blood glucose measurements. The theoretical background measurement technique is verified through simulation. An apparatus fabricated performing measurements in vitro on solutions and vivo human subjects. amplitude signals measured from observed to increase with solution concentration, while obtained follows concentration subjects, indicating a direct...

The authors propose a coordinate rotation digital computer (CORDIC) rotator algorithm that eliminates the problems of scale factor compensation and limited range convergence associated with classical CORDIC algorithm. In proposed scheme, depending on target angle or initial vector, scaling by 1 1/√2 is needed can be realised minimal hardware. adaptively selects appropriate iteration steps converges to final result executing average only 50% number iterations required CORDIC. Unlike for...

To describe a novel neural network based oral precancer (oral submucous fibrosis; OSF) stage detection method.The wavelet coefficients of transmission electron microscopy images collagen fibres from normal submucosa and OSF tissues were used to choose the feature vector which, in turn, was train artificial network.The trained able classify stages (less advanced advanced) after obtaining image as an input.The results obtained this proposed technique promising suggest that with further...

The paper examines the use of photoacoustic spectroscopy (PAS) for making continuous non-invasive blood glucose measurements. An apparatus performing (PA) measurements is constructed and technique verified in vitro vivo through on solutions live tissue. signal amplitude observed to increase with concentration both cases. A linear calibration method applied each individual obtain a value from PA measurement. values obtained are compared reference concentrations measured using standard meter,...

Real-time fusion of images acquired from multiple sensors is significant in various fields, including military and aviation, to reduce the uncertainty for wider temporal spatial coverage. Current approaches multi-sensor image have a high computational complexity difficult implement hardware. This paper presents method based on two-scale decomposition modified Frie-Chen operators fuse infrared visible its corresponding hardware implementation. The proposed achieves 48%, 15%, 100% improvements...

This paper aims at quantitative analysis of histopathological features precancerous lesion and condition using image processing technique. The algorithm involves median low pass filtering, segmentation by adaptive region growing, optimal local thresholding, morphological operations such as opening closing gray scale binary images some numerical methods. Differentiation on the basis type level or is carried out based marker, defined a vector cancer related viz. length curvature radius...

Point-of-care Ultrasound (PoCUS) is a safe, repeatable, and inexpensive bedside diagnostic tool. Over the years, PoCUS services are adopted in resource-limited settings for faster useful outcomes. For cost-effective power-efficient solution, smartphone-based portable continuous-wave Doppler ultrasound (US) system has been developed diagnosing peripheral arterial diseases based on hemodynamic feature values. The proposed includes analog front end (AFE), signal processing display unit (SPDU),...

Blood pressure (BP) measurement plays an essential role in the prevention of cardiovascular diseases. Studies have demonstrated Ultrasound (US) based BP analysis method combining with peripheral components circulatory system. In this paper, a cuffless technique has been proposed using portable continuous wave Doppler US system which consumes <; 4 Watt power. The blood flow signal acquired utilizing 8 MHz pencil transducer probe from brachial artery is denoised soft thresholding method....

Diabetes is a disease of concern, which affects vital organs body. In order to prevent complications, frequent glucose measurement necessary. This paper presents possible methodology for noninvasive blood using photoacoustic (PA) method. Although encouraging results have been obtained the developed system, certain other error sources like melanin content skin, tissue and skin profiles, variation flow due pressure changes, should also be considered investigated.

This paper introduces a computationally efficient hardware architecture for reconfigurable multiple constant multiplication block, which functions according to the canonical signed digit (CSD)-based vertical and horizontal common sub-expression elimination (VHCSE) algorithm. In proposed architecture, CSD decoded coefficient along with 4-b sub-expressions (CSs) in direction 4- 8-b CSs reduces required number of full adder cells depths. technique helps reducing area consumption by decreasing...

Frequency analysis using the DFT, DHT, DCT or DST is an obvious choice for entire image and signal processing domain. A chip has been designed to obtain a unified architecture DFT/DHT/DCT/DST called DXT. For low-power budget of many requirements, e.g. biomedical processing, parallel pipelined adopted design. The parallelism environment provides real-time application other whereas structure ensures high throughput DXT uses CORDIC unit as basic element. UMC library (europractice) 0.25 micron...