Our goal is to enhance matching speed which is important for image engineering. Second Partial Derivative operator in Harris corner detector is directly used to compute the similarity between corners. Then initial matches are obtained. The algorithm is contrasted with normalized cross-correlation and method based on horizontal and vertical gradient. Its computational complexity is reduced and m...

Geophysical prospection has been applied in the Hüttenberg area (Carinthia, Austria), where important parts of the Roman iron production in the province of Noricum between the first century bc and the fourth century ad are located. A combination of geomagnetic, geoelectric and electromagnetic measurements at different scales yielded information about the extent of the industrial complex and the...

We have established a novel method to evaluate the redox properties of tea polyphenols by HPLC-coulometric-array analysis. We plotted the quantity of electricity (µC) on the vertical axis and the electric potential (mV), adjusted with the associated palladium reference electrode, on the horizontal axis to provide "quantity versus potential (QP) plot". The patterns of the plots correspond to the...

A kinematically correct choice of velocity focuses subsurface offset image gathers at zero offset. Infinitesimal warping from the current image towards its focus can be approximated by a horizontal contraction. The image residual can be then taken as the difference between the warped and the original image to account for the velocity error. Least squares fitting of the effect of a velocity pert...

In this paper, we present the method of “FPGA implementation of image segmentation by using edge detection based on the sobel edge operator” .due to advancement in computer vision it can be implemented in fpga based architecture. image segmentation separates an image into component regions and object. Segmentation needs to segment the object from the background to read image properly and identi...

Eye movement recordings from humans indicated that brief exposures (200 ms) to horizontal disparity steps applied to large random-dot patterns elicit horizontal vergence at short latencies (80.9 +/- 3.9 ms, mean +/- SD; n = 7). Disparity tuning curves, describing the dependence of the initial vergence responses (measured over the period 90-157 ms after the step) on the magnitude of the steps, r...

A Continuous-Time Analog Circuit for Computing Time Delays Between Signals Chiang-Jung Pu and John G. Harris University of Florida EE Dept., 446 CSE Bldg 42 Gainesville, FL 32611 Abstract| We describe an analog VLSI circuit that computes the time delay between an arbitrary input signal and its delayed version. Versions of this circuit will be used as the basic computational elements for human a...

Furcation lesions are associated with increased risk of progressive loss of connective tissue attachment, alveolar bone resorption, and tooth mortality (Bjorn and Hjort, 1982; Becker et al, 1984; Wang et al, 1994; Wood et al, 1989; Hirshfield and Wasserman, 1978; McFall, 1982; Carranza and Jolkovsky, 1991), representing one of the greatest challenges in periodontal therapy. Surgical management ...

A nonlinear proportional-derivative controller plus adaptive neuronal network compensation is proposed. With the aim of estimating the desired torque, a two-layer neural network is used. Then, adaptation laws for the neural network weights are derived. Asymptotic convergence of the position and velocity tracking errors is proven, while the neural network weights are shown to be uniformly bounde...